8106 lines
277 KiB
C
8106 lines
277 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* This file implements PKCS 11 on top of our existing security modules
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*
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* For more information about PKCS 11 See PKCS 11 Token Inteface Standard.
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* This implementation has two slots:
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* slot 1 is our generic crypto support. It does not require login.
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* It supports Public Key ops, and all they bulk ciphers and hashes.
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* It can also support Private Key ops for imported Private keys. It does
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* not have any token storage.
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* slot 2 is our private key support. It requires a login before use. It
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* can store Private Keys and Certs as token objects. Currently only private
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* keys and their associated Certificates are saved on the token.
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*
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* In this implementation, session objects are only visible to the session
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* that created or generated them.
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*/
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#include "seccomon.h"
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#include "secitem.h"
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#include "secport.h"
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#include "blapi.h"
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#include "pkcs11.h"
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#include "pkcs11i.h"
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#include "pkcs1sig.h"
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#include "lowkeyi.h"
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#include "secder.h"
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#include "secdig.h"
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#include "lowpbe.h" /* We do PBE below */
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#include "pkcs11t.h"
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#include "secoid.h"
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#include "alghmac.h"
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#include "softoken.h"
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#include "secasn1.h"
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#include "secerr.h"
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#include "prprf.h"
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#include "prenv.h"
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#define __PASTE(x, y) x##y
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/*
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* we renamed all our internal functions, get the correct
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* definitions for them...
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*/
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#undef CK_PKCS11_FUNCTION_INFO
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#undef CK_NEED_ARG_LIST
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#define CK_EXTERN extern
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#define CK_PKCS11_FUNCTION_INFO(func) \
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CK_RV __PASTE(NS, func)
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#define CK_NEED_ARG_LIST 1
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#include "pkcs11f.h"
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typedef struct {
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PRUint8 client_version[2];
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PRUint8 random[46];
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} SSL3RSAPreMasterSecret;
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static void
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sftk_Null(void *data, PRBool freeit)
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{
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return;
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}
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#ifdef EC_DEBUG
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#define SEC_PRINT(str1, str2, num, sitem) \
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printf("pkcs11c.c:%s:%s (keytype=%d) [len=%d]\n", \
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str1, str2, num, sitem->len); \
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for (i = 0; i < sitem->len; i++) { \
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printf("%02x:", sitem->data[i]); \
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} \
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printf("\n")
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#else
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#undef EC_DEBUG
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#define SEC_PRINT(a, b, c, d)
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#endif
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/*
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* free routines.... Free local type allocated data, and convert
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* other free routines to the destroy signature.
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*/
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static void
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sftk_FreePrivKey(NSSLOWKEYPrivateKey *key, PRBool freeit)
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{
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nsslowkey_DestroyPrivateKey(key);
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}
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static void
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sftk_Space(void *data, PRBool freeit)
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{
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PORT_Free(data);
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}
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/*
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* map all the SEC_ERROR_xxx error codes that may be returned by freebl
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* functions to CKR_xxx. return CKR_DEVICE_ERROR by default for backward
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* compatibility.
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*/
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static CK_RV
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sftk_MapCryptError(int error)
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{
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switch (error) {
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case SEC_ERROR_INVALID_ARGS:
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case SEC_ERROR_BAD_DATA: /* MP_RANGE gets mapped to this */
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return CKR_ARGUMENTS_BAD;
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case SEC_ERROR_INPUT_LEN:
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return CKR_DATA_LEN_RANGE;
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case SEC_ERROR_OUTPUT_LEN:
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return CKR_BUFFER_TOO_SMALL;
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case SEC_ERROR_LIBRARY_FAILURE:
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return CKR_GENERAL_ERROR;
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case SEC_ERROR_NO_MEMORY:
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return CKR_HOST_MEMORY;
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case SEC_ERROR_BAD_SIGNATURE:
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return CKR_SIGNATURE_INVALID;
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case SEC_ERROR_INVALID_KEY:
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return CKR_KEY_SIZE_RANGE;
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case SEC_ERROR_BAD_KEY: /* an EC public key that fails validation */
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return CKR_KEY_SIZE_RANGE; /* the closest error code */
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case SEC_ERROR_UNSUPPORTED_EC_POINT_FORM:
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return CKR_TEMPLATE_INCONSISTENT;
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case SEC_ERROR_UNSUPPORTED_KEYALG:
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return CKR_MECHANISM_INVALID;
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case SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE:
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return CKR_DOMAIN_PARAMS_INVALID;
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/* key pair generation failed after max number of attempts */
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case SEC_ERROR_NEED_RANDOM:
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return CKR_FUNCTION_FAILED;
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}
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return CKR_DEVICE_ERROR;
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}
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/* used by Decrypt and UnwrapKey (indirectly) */
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static CK_RV
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sftk_MapDecryptError(int error)
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{
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switch (error) {
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case SEC_ERROR_BAD_DATA:
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return CKR_ENCRYPTED_DATA_INVALID;
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default:
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return sftk_MapCryptError(error);
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}
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}
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/*
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* return CKR_SIGNATURE_INVALID instead of CKR_DEVICE_ERROR by default for
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* backward compatibilty.
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*/
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static CK_RV
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sftk_MapVerifyError(int error)
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{
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CK_RV crv = sftk_MapCryptError(error);
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if (crv == CKR_DEVICE_ERROR)
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crv = CKR_SIGNATURE_INVALID;
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return crv;
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}
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/*
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* turn a CDMF key into a des key. CDMF is an old IBM scheme to export DES by
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* Deprecating a full des key to 40 bit key strenth.
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*/
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static CK_RV
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sftk_cdmf2des(unsigned char *cdmfkey, unsigned char *deskey)
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{
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unsigned char key1[8] = { 0xc4, 0x08, 0xb0, 0x54, 0x0b, 0xa1, 0xe0, 0xae };
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unsigned char key2[8] = { 0xef, 0x2c, 0x04, 0x1c, 0xe6, 0x38, 0x2f, 0xe6 };
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unsigned char enc_src[8];
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unsigned char enc_dest[8];
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unsigned int leng, i;
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DESContext *descx;
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SECStatus rv;
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/* zero the parity bits */
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for (i = 0; i < 8; i++) {
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enc_src[i] = cdmfkey[i] & 0xfe;
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}
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/* encrypt with key 1 */
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descx = DES_CreateContext(key1, NULL, NSS_DES, PR_TRUE);
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if (descx == NULL)
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return CKR_HOST_MEMORY;
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rv = DES_Encrypt(descx, enc_dest, &leng, 8, enc_src, 8);
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DES_DestroyContext(descx, PR_TRUE);
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if (rv != SECSuccess)
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return sftk_MapCryptError(PORT_GetError());
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/* xor source with des, zero the parity bits and deprecate the key*/
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for (i = 0; i < 8; i++) {
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if (i & 1) {
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enc_src[i] = (enc_src[i] ^ enc_dest[i]) & 0xfe;
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} else {
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enc_src[i] = (enc_src[i] ^ enc_dest[i]) & 0x0e;
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}
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}
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/* encrypt with key 2 */
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descx = DES_CreateContext(key2, NULL, NSS_DES, PR_TRUE);
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if (descx == NULL)
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return CKR_HOST_MEMORY;
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rv = DES_Encrypt(descx, deskey, &leng, 8, enc_src, 8);
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DES_DestroyContext(descx, PR_TRUE);
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if (rv != SECSuccess)
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return sftk_MapCryptError(PORT_GetError());
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/* set the corret parity on our new des key */
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sftk_FormatDESKey(deskey, 8);
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return CKR_OK;
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}
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/* NSC_DestroyObject destroys an object. */
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CK_RV
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NSC_DestroyObject(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE hObject)
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{
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SFTKSlot *slot = sftk_SlotFromSessionHandle(hSession);
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SFTKSession *session;
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SFTKObject *object;
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SFTKFreeStatus status;
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CHECK_FORK();
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if (slot == NULL) {
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return CKR_SESSION_HANDLE_INVALID;
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}
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/*
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* This whole block just makes sure we really can destroy the
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* requested object.
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*/
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session = sftk_SessionFromHandle(hSession);
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if (session == NULL) {
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return CKR_SESSION_HANDLE_INVALID;
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}
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object = sftk_ObjectFromHandle(hObject, session);
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if (object == NULL) {
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sftk_FreeSession(session);
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return CKR_OBJECT_HANDLE_INVALID;
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}
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/* don't destroy a private object if we aren't logged in */
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if ((!slot->isLoggedIn) && (slot->needLogin) &&
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(sftk_isTrue(object, CKA_PRIVATE))) {
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sftk_FreeSession(session);
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sftk_FreeObject(object);
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return CKR_USER_NOT_LOGGED_IN;
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}
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/* don't destroy a token object if we aren't in a rw session */
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if (((session->info.flags & CKF_RW_SESSION) == 0) &&
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(sftk_isTrue(object, CKA_TOKEN))) {
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sftk_FreeSession(session);
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sftk_FreeObject(object);
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return CKR_SESSION_READ_ONLY;
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}
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sftk_DeleteObject(session, object);
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sftk_FreeSession(session);
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/*
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* get some indication if the object is destroyed. Note: this is not
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* 100%. Someone may have an object reference outstanding (though that
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* should not be the case by here. Also note that the object is "half"
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* destroyed. Our internal representation is destroyed, but it may still
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* be in the data base.
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*/
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status = sftk_FreeObject(object);
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return (status != SFTK_DestroyFailure) ? CKR_OK : CKR_DEVICE_ERROR;
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}
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/*
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************** Crypto Functions: Utilities ************************
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*/
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/*
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* Utility function for converting PSS/OAEP parameter types into
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* HASH_HashTypes. Note: Only SHA family functions are defined in RFC 3447.
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*/
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static HASH_HashType
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GetHashTypeFromMechanism(CK_MECHANISM_TYPE mech)
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{
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switch (mech) {
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case CKM_SHA_1:
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case CKG_MGF1_SHA1:
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return HASH_AlgSHA1;
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case CKM_SHA224:
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case CKG_MGF1_SHA224:
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return HASH_AlgSHA224;
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case CKM_SHA256:
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case CKG_MGF1_SHA256:
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return HASH_AlgSHA256;
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case CKM_SHA384:
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case CKG_MGF1_SHA384:
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return HASH_AlgSHA384;
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case CKM_SHA512:
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case CKG_MGF1_SHA512:
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return HASH_AlgSHA512;
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default:
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return HASH_AlgNULL;
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}
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}
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/*
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* Returns true if "params" contains a valid set of PSS parameters
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*/
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static PRBool
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sftk_ValidatePssParams(const CK_RSA_PKCS_PSS_PARAMS *params)
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{
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if (!params) {
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return PR_FALSE;
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}
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if (GetHashTypeFromMechanism(params->hashAlg) == HASH_AlgNULL ||
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GetHashTypeFromMechanism(params->mgf) == HASH_AlgNULL) {
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return PR_FALSE;
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}
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return PR_TRUE;
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}
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/*
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* Returns true if "params" contains a valid set of OAEP parameters
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*/
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static PRBool
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sftk_ValidateOaepParams(const CK_RSA_PKCS_OAEP_PARAMS *params)
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{
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if (!params) {
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return PR_FALSE;
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}
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/* The requirements of ulSourceLen/pSourceData come from PKCS #11, which
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* state:
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* If the parameter is empty, pSourceData must be NULL and
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* ulSourceDataLen must be zero.
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*/
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if (params->source != CKZ_DATA_SPECIFIED ||
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(GetHashTypeFromMechanism(params->hashAlg) == HASH_AlgNULL) ||
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(GetHashTypeFromMechanism(params->mgf) == HASH_AlgNULL) ||
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(params->ulSourceDataLen == 0 && params->pSourceData != NULL) ||
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(params->ulSourceDataLen != 0 && params->pSourceData == NULL)) {
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return PR_FALSE;
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}
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return PR_TRUE;
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}
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/*
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* return a context based on the SFTKContext type.
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*/
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SFTKSessionContext *
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sftk_ReturnContextByType(SFTKSession *session, SFTKContextType type)
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{
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switch (type) {
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case SFTK_ENCRYPT:
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case SFTK_DECRYPT:
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return session->enc_context;
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case SFTK_HASH:
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return session->hash_context;
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case SFTK_SIGN:
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case SFTK_SIGN_RECOVER:
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case SFTK_VERIFY:
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case SFTK_VERIFY_RECOVER:
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return session->hash_context;
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}
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return NULL;
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}
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/*
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* change a context based on the SFTKContext type.
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*/
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void
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sftk_SetContextByType(SFTKSession *session, SFTKContextType type,
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SFTKSessionContext *context)
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{
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switch (type) {
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case SFTK_ENCRYPT:
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case SFTK_DECRYPT:
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session->enc_context = context;
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break;
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case SFTK_HASH:
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session->hash_context = context;
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break;
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case SFTK_SIGN:
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case SFTK_SIGN_RECOVER:
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case SFTK_VERIFY:
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case SFTK_VERIFY_RECOVER:
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session->hash_context = context;
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break;
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}
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return;
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}
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/*
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* code to grab the context. Needed by every C_XXXUpdate, C_XXXFinal,
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* and C_XXX function. The function takes a session handle, the context type,
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* and wether or not the session needs to be multipart. It returns the context,
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* and optionally returns the session pointer (if sessionPtr != NULL) if session
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* pointer is returned, the caller is responsible for freeing it.
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*/
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static CK_RV
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sftk_GetContext(CK_SESSION_HANDLE handle, SFTKSessionContext **contextPtr,
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SFTKContextType type, PRBool needMulti, SFTKSession **sessionPtr)
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{
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SFTKSession *session;
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SFTKSessionContext *context;
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session = sftk_SessionFromHandle(handle);
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if (session == NULL)
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return CKR_SESSION_HANDLE_INVALID;
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context = sftk_ReturnContextByType(session, type);
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/* make sure the context is valid */
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if ((context == NULL) || (context->type != type) || (needMulti && !(context->multi))) {
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sftk_FreeSession(session);
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return CKR_OPERATION_NOT_INITIALIZED;
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}
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*contextPtr = context;
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if (sessionPtr != NULL) {
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*sessionPtr = session;
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} else {
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sftk_FreeSession(session);
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}
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return CKR_OK;
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}
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/** Terminate operation (in the PKCS#11 spec sense).
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* Intuitive name for FreeContext/SetNullContext pair.
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*/
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static void
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sftk_TerminateOp(SFTKSession *session, SFTKContextType ctype,
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SFTKSessionContext *context)
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{
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sftk_FreeContext(context);
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sftk_SetContextByType(session, ctype, NULL);
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}
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/*
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************** Crypto Functions: Encrypt ************************
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*/
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/*
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* All the NSC_InitXXX functions have a set of common checks and processing they
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* all need to do at the beginning. This is done here.
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*/
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static CK_RV
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sftk_InitGeneric(SFTKSession *session, SFTKSessionContext **contextPtr,
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SFTKContextType ctype, SFTKObject **keyPtr,
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CK_OBJECT_HANDLE hKey, CK_KEY_TYPE *keyTypePtr,
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CK_OBJECT_CLASS pubKeyType, CK_ATTRIBUTE_TYPE operation)
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{
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SFTKObject *key = NULL;
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SFTKAttribute *att;
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SFTKSessionContext *context;
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/* We can only init if there is not current context active */
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if (sftk_ReturnContextByType(session, ctype) != NULL) {
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return CKR_OPERATION_ACTIVE;
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}
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/* find the key */
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if (keyPtr) {
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key = sftk_ObjectFromHandle(hKey, session);
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if (key == NULL) {
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return CKR_KEY_HANDLE_INVALID;
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}
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|
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/* make sure it's a valid key for this operation */
|
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if (((key->objclass != CKO_SECRET_KEY) && (key->objclass != pubKeyType)) || !sftk_isTrue(key, operation)) {
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sftk_FreeObject(key);
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return CKR_KEY_TYPE_INCONSISTENT;
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}
|
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/* get the key type */
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att = sftk_FindAttribute(key, CKA_KEY_TYPE);
|
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if (att == NULL) {
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sftk_FreeObject(key);
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return CKR_KEY_TYPE_INCONSISTENT;
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}
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PORT_Assert(att->attrib.ulValueLen == sizeof(CK_KEY_TYPE));
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if (att->attrib.ulValueLen != sizeof(CK_KEY_TYPE)) {
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sftk_FreeAttribute(att);
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sftk_FreeObject(key);
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return CKR_ATTRIBUTE_VALUE_INVALID;
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}
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PORT_Memcpy(keyTypePtr, att->attrib.pValue, sizeof(CK_KEY_TYPE));
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sftk_FreeAttribute(att);
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*keyPtr = key;
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}
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|
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/* allocate the context structure */
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context = (SFTKSessionContext *)PORT_Alloc(sizeof(SFTKSessionContext));
|
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if (context == NULL) {
|
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if (key)
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sftk_FreeObject(key);
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return CKR_HOST_MEMORY;
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}
|
|
context->type = ctype;
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|
context->multi = PR_TRUE;
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context->rsa = PR_FALSE;
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context->cipherInfo = NULL;
|
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context->hashInfo = NULL;
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context->doPad = PR_FALSE;
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context->padDataLength = 0;
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context->key = key;
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context->blockSize = 0;
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context->maxLen = 0;
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|
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*contextPtr = context;
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return CKR_OK;
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}
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|
|
|
static int
|
|
sftk_aes_mode(CK_MECHANISM_TYPE mechanism)
|
|
{
|
|
switch (mechanism) {
|
|
case CKM_AES_CBC_PAD:
|
|
case CKM_AES_CBC:
|
|
return NSS_AES_CBC;
|
|
case CKM_AES_ECB:
|
|
return NSS_AES;
|
|
case CKM_AES_CTS:
|
|
return NSS_AES_CTS;
|
|
case CKM_AES_CTR:
|
|
return NSS_AES_CTR;
|
|
case CKM_AES_GCM:
|
|
return NSS_AES_GCM;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSAEncryptRaw(NSSLOWKEYPublicKey *key, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
rv = RSA_EncryptRaw(&key->u.rsa, output, outputLen, maxLen, input,
|
|
inputLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSADecryptRaw(NSSLOWKEYPrivateKey *key, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
rv = RSA_DecryptRaw(&key->u.rsa, output, outputLen, maxLen, input,
|
|
inputLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSAEncrypt(NSSLOWKEYPublicKey *key, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
rv = RSA_EncryptBlock(&key->u.rsa, output, outputLen, maxLen, input,
|
|
inputLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSADecrypt(NSSLOWKEYPrivateKey *key, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
rv = RSA_DecryptBlock(&key->u.rsa, output, outputLen, maxLen, input,
|
|
inputLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSAEncryptOAEP(SFTKOAEPEncryptInfo *info, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
HASH_HashType hashAlg;
|
|
HASH_HashType maskHashAlg;
|
|
|
|
PORT_Assert(info->key->keyType == NSSLOWKEYRSAKey);
|
|
if (info->key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
hashAlg = GetHashTypeFromMechanism(info->params->hashAlg);
|
|
maskHashAlg = GetHashTypeFromMechanism(info->params->mgf);
|
|
|
|
return RSA_EncryptOAEP(&info->key->u.rsa, hashAlg, maskHashAlg,
|
|
(const unsigned char *)info->params->pSourceData,
|
|
info->params->ulSourceDataLen, NULL, 0,
|
|
output, outputLen, maxLen, input, inputLen);
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSADecryptOAEP(SFTKOAEPDecryptInfo *info, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
HASH_HashType hashAlg;
|
|
HASH_HashType maskHashAlg;
|
|
|
|
PORT_Assert(info->key->keyType == NSSLOWKEYRSAKey);
|
|
if (info->key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
hashAlg = GetHashTypeFromMechanism(info->params->hashAlg);
|
|
maskHashAlg = GetHashTypeFromMechanism(info->params->mgf);
|
|
|
|
rv = RSA_DecryptOAEP(&info->key->u.rsa, hashAlg, maskHashAlg,
|
|
(const unsigned char *)info->params->pSourceData,
|
|
info->params->ulSourceDataLen,
|
|
output, outputLen, maxLen, input, inputLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static SFTKChaCha20Poly1305Info *
|
|
sftk_ChaCha20Poly1305_CreateContext(const unsigned char *key,
|
|
unsigned int keyLen,
|
|
const CK_NSS_AEAD_PARAMS *params)
|
|
{
|
|
SFTKChaCha20Poly1305Info *ctx;
|
|
|
|
if (params->ulNonceLen != sizeof(ctx->nonce)) {
|
|
PORT_SetError(SEC_ERROR_INPUT_LEN);
|
|
return NULL;
|
|
}
|
|
|
|
ctx = PORT_New(SFTKChaCha20Poly1305Info);
|
|
if (ctx == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (ChaCha20Poly1305_InitContext(&ctx->freeblCtx, key, keyLen,
|
|
params->ulTagLen) != SECSuccess) {
|
|
PORT_Free(ctx);
|
|
return NULL;
|
|
}
|
|
|
|
PORT_Memcpy(ctx->nonce, params->pNonce, sizeof(ctx->nonce));
|
|
|
|
/* AAD data and length must both be null, or both non-null. */
|
|
PORT_Assert((params->pAAD == NULL) == (params->ulAADLen == 0));
|
|
|
|
if (params->ulAADLen > sizeof(ctx->ad)) {
|
|
/* Need to allocate an overflow buffer for the additional data. */
|
|
ctx->adOverflow = (unsigned char *)PORT_Alloc(params->ulAADLen);
|
|
if (!ctx->adOverflow) {
|
|
PORT_Free(ctx);
|
|
return NULL;
|
|
}
|
|
PORT_Memcpy(ctx->adOverflow, params->pAAD, params->ulAADLen);
|
|
} else {
|
|
ctx->adOverflow = NULL;
|
|
if (params->pAAD) {
|
|
PORT_Memcpy(ctx->ad, params->pAAD, params->ulAADLen);
|
|
}
|
|
}
|
|
ctx->adLen = params->ulAADLen;
|
|
|
|
return ctx;
|
|
}
|
|
|
|
static void
|
|
sftk_ChaCha20Poly1305_DestroyContext(SFTKChaCha20Poly1305Info *ctx,
|
|
PRBool freeit)
|
|
{
|
|
ChaCha20Poly1305_DestroyContext(&ctx->freeblCtx, PR_FALSE);
|
|
if (ctx->adOverflow != NULL) {
|
|
PORT_Free(ctx->adOverflow);
|
|
ctx->adOverflow = NULL;
|
|
}
|
|
ctx->adLen = 0;
|
|
if (freeit) {
|
|
PORT_Free(ctx);
|
|
}
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_ChaCha20Poly1305_Encrypt(const SFTKChaCha20Poly1305Info *ctx,
|
|
unsigned char *output, unsigned int *outputLen,
|
|
unsigned int maxOutputLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
const unsigned char *ad = ctx->adOverflow;
|
|
|
|
if (ad == NULL) {
|
|
ad = ctx->ad;
|
|
}
|
|
|
|
return ChaCha20Poly1305_Seal(&ctx->freeblCtx, output, outputLen,
|
|
maxOutputLen, input, inputLen, ctx->nonce,
|
|
sizeof(ctx->nonce), ad, ctx->adLen);
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_ChaCha20Poly1305_Decrypt(const SFTKChaCha20Poly1305Info *ctx,
|
|
unsigned char *output, unsigned int *outputLen,
|
|
unsigned int maxOutputLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
const unsigned char *ad = ctx->adOverflow;
|
|
|
|
if (ad == NULL) {
|
|
ad = ctx->ad;
|
|
}
|
|
|
|
return ChaCha20Poly1305_Open(&ctx->freeblCtx, output, outputLen,
|
|
maxOutputLen, input, inputLen, ctx->nonce,
|
|
sizeof(ctx->nonce), ad, ctx->adLen);
|
|
}
|
|
|
|
/** NSC_CryptInit initializes an encryption/Decryption operation.
|
|
*
|
|
* Always called by NSC_EncryptInit, NSC_DecryptInit, NSC_WrapKey,NSC_UnwrapKey.
|
|
* Called by NSC_SignInit, NSC_VerifyInit (via sftk_InitCBCMac) only for block
|
|
* ciphers MAC'ing.
|
|
*/
|
|
static CK_RV
|
|
sftk_CryptInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism,
|
|
CK_OBJECT_HANDLE hKey,
|
|
CK_ATTRIBUTE_TYPE mechUsage, CK_ATTRIBUTE_TYPE keyUsage,
|
|
SFTKContextType contextType, PRBool isEncrypt)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKObject *key;
|
|
SFTKSessionContext *context;
|
|
SFTKAttribute *att;
|
|
CK_RC2_CBC_PARAMS *rc2_param;
|
|
#if NSS_SOFTOKEN_DOES_RC5
|
|
CK_RC5_CBC_PARAMS *rc5_param;
|
|
SECItem rc5Key;
|
|
#endif
|
|
CK_KEY_TYPE key_type;
|
|
CK_RV crv = CKR_OK;
|
|
unsigned effectiveKeyLength;
|
|
unsigned char newdeskey[24];
|
|
PRBool useNewKey = PR_FALSE;
|
|
int t;
|
|
|
|
crv = sftk_MechAllowsOperation(pMechanism->mechanism, mechUsage);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
|
|
crv = sftk_InitGeneric(session, &context, contextType, &key, hKey, &key_type,
|
|
isEncrypt ? CKO_PUBLIC_KEY : CKO_PRIVATE_KEY, keyUsage);
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
context->doPad = PR_FALSE;
|
|
switch (pMechanism->mechanism) {
|
|
case CKM_RSA_PKCS:
|
|
case CKM_RSA_X_509:
|
|
if (key_type != CKK_RSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
context->multi = PR_FALSE;
|
|
context->rsa = PR_TRUE;
|
|
if (isEncrypt) {
|
|
NSSLOWKEYPublicKey *pubKey = sftk_GetPubKey(key, CKK_RSA, &crv);
|
|
if (pubKey == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->maxLen = nsslowkey_PublicModulusLen(pubKey);
|
|
context->cipherInfo = (void *)pubKey;
|
|
context->update = (SFTKCipher)(pMechanism->mechanism == CKM_RSA_X_509
|
|
? sftk_RSAEncryptRaw
|
|
: sftk_RSAEncrypt);
|
|
} else {
|
|
NSSLOWKEYPrivateKey *privKey = sftk_GetPrivKey(key, CKK_RSA, &crv);
|
|
if (privKey == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->maxLen = nsslowkey_PrivateModulusLen(privKey);
|
|
context->cipherInfo = (void *)privKey;
|
|
context->update = (SFTKCipher)(pMechanism->mechanism == CKM_RSA_X_509
|
|
? sftk_RSADecryptRaw
|
|
: sftk_RSADecrypt);
|
|
}
|
|
context->destroy = sftk_Null;
|
|
break;
|
|
case CKM_RSA_PKCS_OAEP:
|
|
if (key_type != CKK_RSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
if (pMechanism->ulParameterLen != sizeof(CK_RSA_PKCS_OAEP_PARAMS) ||
|
|
!sftk_ValidateOaepParams((CK_RSA_PKCS_OAEP_PARAMS *)pMechanism->pParameter)) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
context->multi = PR_FALSE;
|
|
context->rsa = PR_TRUE;
|
|
if (isEncrypt) {
|
|
SFTKOAEPEncryptInfo *info = PORT_New(SFTKOAEPEncryptInfo);
|
|
if (info == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
info->params = pMechanism->pParameter;
|
|
info->key = sftk_GetPubKey(key, CKK_RSA, &crv);
|
|
if (info->key == NULL) {
|
|
PORT_Free(info);
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)sftk_RSAEncryptOAEP;
|
|
context->maxLen = nsslowkey_PublicModulusLen(info->key);
|
|
context->cipherInfo = info;
|
|
} else {
|
|
SFTKOAEPDecryptInfo *info = PORT_New(SFTKOAEPDecryptInfo);
|
|
if (info == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
info->params = pMechanism->pParameter;
|
|
info->key = sftk_GetPrivKey(key, CKK_RSA, &crv);
|
|
if (info->key == NULL) {
|
|
PORT_Free(info);
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)sftk_RSADecryptOAEP;
|
|
context->maxLen = nsslowkey_PrivateModulusLen(info->key);
|
|
context->cipherInfo = info;
|
|
}
|
|
context->destroy = (SFTKDestroy)sftk_Space;
|
|
break;
|
|
case CKM_RC2_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_RC2_ECB:
|
|
case CKM_RC2_CBC:
|
|
context->blockSize = 8;
|
|
if (key_type != CKK_RC2) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
rc2_param = (CK_RC2_CBC_PARAMS *)pMechanism->pParameter;
|
|
effectiveKeyLength = (rc2_param->ulEffectiveBits + 7) / 8;
|
|
context->cipherInfo =
|
|
RC2_CreateContext((unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen, rc2_param->iv,
|
|
pMechanism->mechanism == CKM_RC2_ECB ? NSS_RC2 : NSS_RC2_CBC, effectiveKeyLength);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? RC2_Encrypt : RC2_Decrypt);
|
|
context->destroy = (SFTKDestroy)RC2_DestroyContext;
|
|
break;
|
|
#if NSS_SOFTOKEN_DOES_RC5
|
|
case CKM_RC5_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_RC5_ECB:
|
|
case CKM_RC5_CBC:
|
|
if (key_type != CKK_RC5) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
rc5_param = (CK_RC5_CBC_PARAMS *)pMechanism->pParameter;
|
|
context->blockSize = rc5_param->ulWordsize * 2;
|
|
rc5Key.data = (unsigned char *)att->attrib.pValue;
|
|
rc5Key.len = att->attrib.ulValueLen;
|
|
context->cipherInfo = RC5_CreateContext(&rc5Key, rc5_param->ulRounds,
|
|
rc5_param->ulWordsize, rc5_param->pIv,
|
|
pMechanism->mechanism == CKM_RC5_ECB ? NSS_RC5 : NSS_RC5_CBC);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? RC5_Encrypt : RC5_Decrypt);
|
|
context->destroy = (SFTKDestroy)RC5_DestroyContext;
|
|
break;
|
|
#endif
|
|
case CKM_RC4:
|
|
if (key_type != CKK_RC4) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->cipherInfo =
|
|
RC4_CreateContext((unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY; /* WRONG !!! */
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? RC4_Encrypt : RC4_Decrypt);
|
|
context->destroy = (SFTKDestroy)RC4_DestroyContext;
|
|
break;
|
|
case CKM_CDMF_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_CDMF_ECB:
|
|
case CKM_CDMF_CBC:
|
|
if (key_type != CKK_CDMF) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
t = (pMechanism->mechanism == CKM_CDMF_ECB) ? NSS_DES : NSS_DES_CBC;
|
|
goto finish_des;
|
|
case CKM_DES_ECB:
|
|
if (key_type != CKK_DES) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
t = NSS_DES;
|
|
goto finish_des;
|
|
case CKM_DES_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_DES_CBC:
|
|
if (key_type != CKK_DES) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
t = NSS_DES_CBC;
|
|
goto finish_des;
|
|
case CKM_DES3_ECB:
|
|
if ((key_type != CKK_DES2) && (key_type != CKK_DES3)) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
t = NSS_DES_EDE3;
|
|
goto finish_des;
|
|
case CKM_DES3_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_DES3_CBC:
|
|
if ((key_type != CKK_DES2) && (key_type != CKK_DES3)) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
t = NSS_DES_EDE3_CBC;
|
|
finish_des:
|
|
context->blockSize = 8;
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
if (key_type == CKK_DES2 &&
|
|
(t == NSS_DES_EDE3_CBC || t == NSS_DES_EDE3)) {
|
|
/* extend DES2 key to DES3 key. */
|
|
memcpy(newdeskey, att->attrib.pValue, 16);
|
|
memcpy(newdeskey + 16, newdeskey, 8);
|
|
useNewKey = PR_TRUE;
|
|
} else if (key_type == CKK_CDMF) {
|
|
crv = sftk_cdmf2des((unsigned char *)att->attrib.pValue, newdeskey);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeAttribute(att);
|
|
break;
|
|
}
|
|
useNewKey = PR_TRUE;
|
|
}
|
|
context->cipherInfo = DES_CreateContext(
|
|
useNewKey ? newdeskey : (unsigned char *)att->attrib.pValue,
|
|
(unsigned char *)pMechanism->pParameter, t, isEncrypt);
|
|
if (useNewKey)
|
|
memset(newdeskey, 0, sizeof newdeskey);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? DES_Encrypt : DES_Decrypt);
|
|
context->destroy = (SFTKDestroy)DES_DestroyContext;
|
|
break;
|
|
case CKM_SEED_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_SEED_CBC:
|
|
if (!pMechanism->pParameter ||
|
|
pMechanism->ulParameterLen != 16) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
/* fall thru */
|
|
case CKM_SEED_ECB:
|
|
context->blockSize = 16;
|
|
if (key_type != CKK_SEED) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->cipherInfo = SEED_CreateContext(
|
|
(unsigned char *)att->attrib.pValue,
|
|
(unsigned char *)pMechanism->pParameter,
|
|
pMechanism->mechanism == CKM_SEED_ECB ? NSS_SEED : NSS_SEED_CBC,
|
|
isEncrypt);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? SEED_Encrypt : SEED_Decrypt);
|
|
context->destroy = (SFTKDestroy)SEED_DestroyContext;
|
|
break;
|
|
|
|
case CKM_CAMELLIA_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_CAMELLIA_CBC:
|
|
if (!pMechanism->pParameter ||
|
|
pMechanism->ulParameterLen != 16) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
/* fall thru */
|
|
case CKM_CAMELLIA_ECB:
|
|
context->blockSize = 16;
|
|
if (key_type != CKK_CAMELLIA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->cipherInfo = Camellia_CreateContext(
|
|
(unsigned char *)att->attrib.pValue,
|
|
(unsigned char *)pMechanism->pParameter,
|
|
pMechanism->mechanism ==
|
|
CKM_CAMELLIA_ECB
|
|
? NSS_CAMELLIA
|
|
: NSS_CAMELLIA_CBC,
|
|
isEncrypt, att->attrib.ulValueLen);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? Camellia_Encrypt : Camellia_Decrypt);
|
|
context->destroy = (SFTKDestroy)Camellia_DestroyContext;
|
|
break;
|
|
|
|
case CKM_AES_CBC_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_AES_ECB:
|
|
case CKM_AES_CBC:
|
|
context->blockSize = 16;
|
|
case CKM_AES_CTS:
|
|
case CKM_AES_CTR:
|
|
case CKM_AES_GCM:
|
|
if (pMechanism->mechanism == CKM_AES_GCM) {
|
|
context->multi = PR_FALSE;
|
|
}
|
|
if (key_type != CKK_AES) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->cipherInfo = AES_CreateContext(
|
|
(unsigned char *)att->attrib.pValue,
|
|
(unsigned char *)pMechanism->pParameter,
|
|
sftk_aes_mode(pMechanism->mechanism),
|
|
isEncrypt, att->attrib.ulValueLen, 16);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? AES_Encrypt : AES_Decrypt);
|
|
context->destroy = (SFTKDestroy)AES_DestroyContext;
|
|
break;
|
|
|
|
case CKM_NSS_CHACHA20_POLY1305:
|
|
if (pMechanism->ulParameterLen != sizeof(CK_NSS_AEAD_PARAMS)) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
context->multi = PR_FALSE;
|
|
if (key_type != CKK_NSS_CHACHA20) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->cipherInfo = sftk_ChaCha20Poly1305_CreateContext(
|
|
(unsigned char *)att->attrib.pValue, att->attrib.ulValueLen,
|
|
(CK_NSS_AEAD_PARAMS *)pMechanism->pParameter);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? sftk_ChaCha20Poly1305_Encrypt : sftk_ChaCha20Poly1305_Decrypt);
|
|
context->destroy = (SFTKDestroy)sftk_ChaCha20Poly1305_DestroyContext;
|
|
break;
|
|
|
|
case CKM_NSS_AES_KEY_WRAP_PAD:
|
|
context->doPad = PR_TRUE;
|
|
/* fall thru */
|
|
case CKM_NSS_AES_KEY_WRAP:
|
|
context->multi = PR_FALSE;
|
|
context->blockSize = 8;
|
|
if (key_type != CKK_AES) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (att == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
context->cipherInfo = AESKeyWrap_CreateContext(
|
|
(unsigned char *)att->attrib.pValue,
|
|
(unsigned char *)pMechanism->pParameter,
|
|
isEncrypt, att->attrib.ulValueLen);
|
|
sftk_FreeAttribute(att);
|
|
if (context->cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->update = (SFTKCipher)(isEncrypt ? AESKeyWrap_Encrypt
|
|
: AESKeyWrap_Decrypt);
|
|
context->destroy = (SFTKDestroy)AESKeyWrap_DestroyContext;
|
|
break;
|
|
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeContext(context);
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
sftk_SetContextByType(session, contextType, context);
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* NSC_EncryptInit initializes an encryption operation. */
|
|
CK_RV
|
|
NSC_EncryptInit(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
|
|
{
|
|
CHECK_FORK();
|
|
return sftk_CryptInit(hSession, pMechanism, hKey, CKA_ENCRYPT, CKA_ENCRYPT,
|
|
SFTK_ENCRYPT, PR_TRUE);
|
|
}
|
|
|
|
/* NSC_EncryptUpdate continues a multiple-part encryption operation. */
|
|
CK_RV
|
|
NSC_EncryptUpdate(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pPart, CK_ULONG ulPartLen, CK_BYTE_PTR pEncryptedPart,
|
|
CK_ULONG_PTR pulEncryptedPartLen)
|
|
{
|
|
SFTKSessionContext *context;
|
|
unsigned int outlen, i;
|
|
unsigned int padoutlen = 0;
|
|
unsigned int maxout = *pulEncryptedPartLen;
|
|
CK_RV crv;
|
|
SECStatus rv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_ENCRYPT, PR_TRUE, NULL);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (!pEncryptedPart) {
|
|
if (context->doPad) {
|
|
CK_ULONG totalDataAvailable = ulPartLen + context->padDataLength;
|
|
CK_ULONG blocksToSend = totalDataAvailable / context->blockSize;
|
|
|
|
*pulEncryptedPartLen = blocksToSend * context->blockSize;
|
|
return CKR_OK;
|
|
}
|
|
*pulEncryptedPartLen = ulPartLen;
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* do padding */
|
|
if (context->doPad) {
|
|
/* deal with previous buffered data */
|
|
if (context->padDataLength != 0) {
|
|
/* fill in the padded to a full block size */
|
|
for (i = context->padDataLength;
|
|
(ulPartLen != 0) && i < context->blockSize; i++) {
|
|
context->padBuf[i] = *pPart++;
|
|
ulPartLen--;
|
|
context->padDataLength++;
|
|
}
|
|
|
|
/* not enough data to encrypt yet? then return */
|
|
if (context->padDataLength != context->blockSize) {
|
|
*pulEncryptedPartLen = 0;
|
|
return CKR_OK;
|
|
}
|
|
/* encrypt the current padded data */
|
|
rv = (*context->update)(context->cipherInfo, pEncryptedPart,
|
|
&padoutlen, context->blockSize, context->padBuf,
|
|
context->blockSize);
|
|
if (rv != SECSuccess) {
|
|
return sftk_MapCryptError(PORT_GetError());
|
|
}
|
|
pEncryptedPart += padoutlen;
|
|
maxout -= padoutlen;
|
|
}
|
|
/* save the residual */
|
|
context->padDataLength = ulPartLen % context->blockSize;
|
|
if (context->padDataLength) {
|
|
PORT_Memcpy(context->padBuf,
|
|
&pPart[ulPartLen - context->padDataLength],
|
|
context->padDataLength);
|
|
ulPartLen -= context->padDataLength;
|
|
}
|
|
/* if we've exhausted our new buffer, we're done */
|
|
if (ulPartLen == 0) {
|
|
*pulEncryptedPartLen = padoutlen;
|
|
return CKR_OK;
|
|
}
|
|
}
|
|
|
|
/* do it: NOTE: this assumes buf size in is >= buf size out! */
|
|
rv = (*context->update)(context->cipherInfo, pEncryptedPart,
|
|
&outlen, maxout, pPart, ulPartLen);
|
|
*pulEncryptedPartLen = (CK_ULONG)(outlen + padoutlen);
|
|
return (rv == SECSuccess) ? CKR_OK : sftk_MapCryptError(PORT_GetError());
|
|
}
|
|
|
|
/* NSC_EncryptFinal finishes a multiple-part encryption operation. */
|
|
CK_RV
|
|
NSC_EncryptFinal(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pLastEncryptedPart, CK_ULONG_PTR pulLastEncryptedPartLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int outlen, i;
|
|
unsigned int maxout = *pulLastEncryptedPartLen;
|
|
CK_RV crv;
|
|
SECStatus rv = SECSuccess;
|
|
PRBool contextFinished = PR_TRUE;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_ENCRYPT, PR_TRUE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
*pulLastEncryptedPartLen = 0;
|
|
if (!pLastEncryptedPart) {
|
|
/* caller is checking the amount of remaining data */
|
|
if (context->blockSize > 0 && context->doPad) {
|
|
*pulLastEncryptedPartLen = context->blockSize;
|
|
contextFinished = PR_FALSE; /* still have padding to go */
|
|
}
|
|
goto finish;
|
|
}
|
|
|
|
/* do padding */
|
|
if (context->doPad) {
|
|
unsigned char padbyte = (unsigned char)(context->blockSize - context->padDataLength);
|
|
/* fill out rest of pad buffer with pad magic*/
|
|
for (i = context->padDataLength; i < context->blockSize; i++) {
|
|
context->padBuf[i] = padbyte;
|
|
}
|
|
rv = (*context->update)(context->cipherInfo, pLastEncryptedPart,
|
|
&outlen, maxout, context->padBuf, context->blockSize);
|
|
if (rv == SECSuccess)
|
|
*pulLastEncryptedPartLen = (CK_ULONG)outlen;
|
|
}
|
|
|
|
finish:
|
|
if (contextFinished)
|
|
sftk_TerminateOp(session, SFTK_ENCRYPT, context);
|
|
sftk_FreeSession(session);
|
|
return (rv == SECSuccess) ? CKR_OK : sftk_MapCryptError(PORT_GetError());
|
|
}
|
|
|
|
/* NSC_Encrypt encrypts single-part data. */
|
|
CK_RV
|
|
NSC_Encrypt(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData,
|
|
CK_ULONG ulDataLen, CK_BYTE_PTR pEncryptedData,
|
|
CK_ULONG_PTR pulEncryptedDataLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int outlen;
|
|
unsigned int maxoutlen = *pulEncryptedDataLen;
|
|
CK_RV crv;
|
|
CK_RV crv2;
|
|
SECStatus rv = SECSuccess;
|
|
SECItem pText;
|
|
|
|
pText.type = siBuffer;
|
|
pText.data = pData;
|
|
pText.len = ulDataLen;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_ENCRYPT, PR_FALSE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (!pEncryptedData) {
|
|
*pulEncryptedDataLen = context->rsa ? context->maxLen : ulDataLen + 2 * context->blockSize;
|
|
goto finish;
|
|
}
|
|
|
|
if (context->doPad) {
|
|
if (context->multi) {
|
|
CK_ULONG finalLen;
|
|
/* padding is fairly complicated, have the update and final
|
|
* code deal with it */
|
|
sftk_FreeSession(session);
|
|
crv = NSC_EncryptUpdate(hSession, pData, ulDataLen, pEncryptedData,
|
|
pulEncryptedDataLen);
|
|
if (crv != CKR_OK)
|
|
*pulEncryptedDataLen = 0;
|
|
maxoutlen -= *pulEncryptedDataLen;
|
|
pEncryptedData += *pulEncryptedDataLen;
|
|
finalLen = maxoutlen;
|
|
crv2 = NSC_EncryptFinal(hSession, pEncryptedData, &finalLen);
|
|
if (crv2 == CKR_OK)
|
|
*pulEncryptedDataLen += finalLen;
|
|
return crv == CKR_OK ? crv2 : crv;
|
|
}
|
|
/* doPad without multi means that padding must be done on the first
|
|
** and only update. There will be no final.
|
|
*/
|
|
PORT_Assert(context->blockSize > 1);
|
|
if (context->blockSize > 1) {
|
|
CK_ULONG remainder = ulDataLen % context->blockSize;
|
|
CK_ULONG padding = context->blockSize - remainder;
|
|
pText.len += padding;
|
|
pText.data = PORT_ZAlloc(pText.len);
|
|
if (pText.data) {
|
|
memcpy(pText.data, pData, ulDataLen);
|
|
memset(pText.data + ulDataLen, padding, padding);
|
|
} else {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* do it: NOTE: this assumes buf size is big enough. */
|
|
rv = (*context->update)(context->cipherInfo, pEncryptedData,
|
|
&outlen, maxoutlen, pText.data, pText.len);
|
|
crv = (rv == SECSuccess) ? CKR_OK : sftk_MapCryptError(PORT_GetError());
|
|
*pulEncryptedDataLen = (CK_ULONG)outlen;
|
|
if (pText.data != pData)
|
|
PORT_ZFree(pText.data, pText.len);
|
|
fail:
|
|
sftk_TerminateOp(session, SFTK_ENCRYPT, context);
|
|
finish:
|
|
sftk_FreeSession(session);
|
|
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
************** Crypto Functions: Decrypt ************************
|
|
*/
|
|
|
|
/* NSC_DecryptInit initializes a decryption operation. */
|
|
CK_RV
|
|
NSC_DecryptInit(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
|
|
{
|
|
CHECK_FORK();
|
|
return sftk_CryptInit(hSession, pMechanism, hKey, CKA_DECRYPT, CKA_DECRYPT,
|
|
SFTK_DECRYPT, PR_FALSE);
|
|
}
|
|
|
|
/* NSC_DecryptUpdate continues a multiple-part decryption operation. */
|
|
CK_RV
|
|
NSC_DecryptUpdate(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pEncryptedPart, CK_ULONG ulEncryptedPartLen,
|
|
CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
|
|
{
|
|
SFTKSessionContext *context;
|
|
unsigned int padoutlen = 0;
|
|
unsigned int outlen;
|
|
unsigned int maxout = *pulPartLen;
|
|
CK_RV crv;
|
|
SECStatus rv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_DECRYPT, PR_TRUE, NULL);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
/* this can only happen on an NSS programming error */
|
|
PORT_Assert((context->padDataLength == 0) || context->padDataLength == context->blockSize);
|
|
|
|
if (context->doPad) {
|
|
/* Check the data length for block ciphers. If we are padding,
|
|
* then we must be using a block cipher. In the non-padding case
|
|
* the error will be returned by the underlying decryption
|
|
* function when we do the actual decrypt. We need to do the
|
|
* check here to avoid returning a negative length to the caller
|
|
* or reading before the beginning of the pEncryptedPart buffer.
|
|
*/
|
|
if ((ulEncryptedPartLen == 0) ||
|
|
(ulEncryptedPartLen % context->blockSize) != 0) {
|
|
return CKR_ENCRYPTED_DATA_LEN_RANGE;
|
|
}
|
|
}
|
|
|
|
if (!pPart) {
|
|
if (context->doPad) {
|
|
*pulPartLen =
|
|
ulEncryptedPartLen + context->padDataLength - context->blockSize;
|
|
return CKR_OK;
|
|
}
|
|
/* for stream ciphers there is are no constraints on ulEncryptedPartLen.
|
|
* for block ciphers, it must be a multiple of blockSize. The error is
|
|
* detected when this function is called again do decrypt the output.
|
|
*/
|
|
*pulPartLen = ulEncryptedPartLen;
|
|
return CKR_OK;
|
|
}
|
|
|
|
if (context->doPad) {
|
|
/* first decrypt our saved buffer */
|
|
if (context->padDataLength != 0) {
|
|
rv = (*context->update)(context->cipherInfo, pPart, &padoutlen,
|
|
maxout, context->padBuf, context->blockSize);
|
|
if (rv != SECSuccess)
|
|
return sftk_MapDecryptError(PORT_GetError());
|
|
pPart += padoutlen;
|
|
maxout -= padoutlen;
|
|
}
|
|
/* now save the final block for the next decrypt or the final */
|
|
PORT_Memcpy(context->padBuf, &pEncryptedPart[ulEncryptedPartLen - context->blockSize],
|
|
context->blockSize);
|
|
context->padDataLength = context->blockSize;
|
|
ulEncryptedPartLen -= context->padDataLength;
|
|
}
|
|
|
|
/* do it: NOTE: this assumes buf size in is >= buf size out! */
|
|
rv = (*context->update)(context->cipherInfo, pPart, &outlen,
|
|
maxout, pEncryptedPart, ulEncryptedPartLen);
|
|
*pulPartLen = (CK_ULONG)(outlen + padoutlen);
|
|
return (rv == SECSuccess) ? CKR_OK : sftk_MapDecryptError(PORT_GetError());
|
|
}
|
|
|
|
/* NSC_DecryptFinal finishes a multiple-part decryption operation. */
|
|
CK_RV
|
|
NSC_DecryptFinal(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pLastPart, CK_ULONG_PTR pulLastPartLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int outlen;
|
|
unsigned int maxout = *pulLastPartLen;
|
|
CK_RV crv;
|
|
SECStatus rv = SECSuccess;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_DECRYPT, PR_TRUE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
*pulLastPartLen = 0;
|
|
if (!pLastPart) {
|
|
/* caller is checking the amount of remaining data */
|
|
if (context->padDataLength > 0) {
|
|
*pulLastPartLen = context->padDataLength;
|
|
}
|
|
goto finish;
|
|
}
|
|
|
|
if (context->doPad) {
|
|
/* decrypt our saved buffer */
|
|
if (context->padDataLength != 0) {
|
|
/* this assumes that pLastPart is big enough to hold the *whole*
|
|
* buffer!!! */
|
|
rv = (*context->update)(context->cipherInfo, pLastPart, &outlen,
|
|
maxout, context->padBuf, context->blockSize);
|
|
if (rv != SECSuccess) {
|
|
crv = sftk_MapDecryptError(PORT_GetError());
|
|
} else {
|
|
unsigned int padSize =
|
|
(unsigned int)pLastPart[context->blockSize - 1];
|
|
if ((padSize > context->blockSize) || (padSize == 0)) {
|
|
crv = CKR_ENCRYPTED_DATA_INVALID;
|
|
} else {
|
|
unsigned int i;
|
|
unsigned int badPadding = 0; /* used as a boolean */
|
|
for (i = 0; i < padSize; i++) {
|
|
badPadding |=
|
|
(unsigned int)pLastPart[context->blockSize - 1 - i] ^
|
|
padSize;
|
|
}
|
|
if (badPadding) {
|
|
crv = CKR_ENCRYPTED_DATA_INVALID;
|
|
} else {
|
|
*pulLastPartLen = outlen - padSize;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sftk_TerminateOp(session, SFTK_DECRYPT, context);
|
|
finish:
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_Decrypt decrypts encrypted data in a single part. */
|
|
CK_RV
|
|
NSC_Decrypt(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pEncryptedData, CK_ULONG ulEncryptedDataLen, CK_BYTE_PTR pData,
|
|
CK_ULONG_PTR pulDataLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int outlen;
|
|
unsigned int maxoutlen = *pulDataLen;
|
|
CK_RV crv;
|
|
CK_RV crv2;
|
|
SECStatus rv = SECSuccess;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_DECRYPT, PR_FALSE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (!pData) {
|
|
*pulDataLen = ulEncryptedDataLen + context->blockSize;
|
|
goto finish;
|
|
}
|
|
|
|
if (context->doPad && context->multi) {
|
|
CK_ULONG finalLen;
|
|
/* padding is fairly complicated, have the update and final
|
|
* code deal with it */
|
|
sftk_FreeSession(session);
|
|
crv = NSC_DecryptUpdate(hSession, pEncryptedData, ulEncryptedDataLen,
|
|
pData, pulDataLen);
|
|
if (crv != CKR_OK)
|
|
*pulDataLen = 0;
|
|
maxoutlen -= *pulDataLen;
|
|
pData += *pulDataLen;
|
|
finalLen = maxoutlen;
|
|
crv2 = NSC_DecryptFinal(hSession, pData, &finalLen);
|
|
if (crv2 == CKR_OK)
|
|
*pulDataLen += finalLen;
|
|
return crv == CKR_OK ? crv2 : crv;
|
|
}
|
|
|
|
rv = (*context->update)(context->cipherInfo, pData, &outlen, maxoutlen,
|
|
pEncryptedData, ulEncryptedDataLen);
|
|
/* XXX need to do MUCH better error mapping than this. */
|
|
crv = (rv == SECSuccess) ? CKR_OK : sftk_MapDecryptError(PORT_GetError());
|
|
if (rv == SECSuccess && context->doPad) {
|
|
unsigned int padding = pData[outlen - 1];
|
|
if (padding > context->blockSize || !padding) {
|
|
crv = CKR_ENCRYPTED_DATA_INVALID;
|
|
} else {
|
|
unsigned int i;
|
|
unsigned int badPadding = 0; /* used as a boolean */
|
|
for (i = 0; i < padding; i++) {
|
|
badPadding |= (unsigned int)pData[outlen - 1 - i] ^ padding;
|
|
}
|
|
if (badPadding) {
|
|
crv = CKR_ENCRYPTED_DATA_INVALID;
|
|
} else {
|
|
outlen -= padding;
|
|
}
|
|
}
|
|
}
|
|
*pulDataLen = (CK_ULONG)outlen;
|
|
sftk_TerminateOp(session, SFTK_DECRYPT, context);
|
|
finish:
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
************** Crypto Functions: Digest (HASH) ************************
|
|
*/
|
|
|
|
/* NSC_DigestInit initializes a message-digesting operation. */
|
|
CK_RV
|
|
NSC_DigestInit(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
CK_RV crv = CKR_OK;
|
|
|
|
CHECK_FORK();
|
|
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
crv = sftk_InitGeneric(session, &context, SFTK_HASH, NULL, 0, NULL, 0, 0);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
#define INIT_MECH(mech, mmm) \
|
|
case mech: { \
|
|
mmm##Context *mmm##_ctx = mmm##_NewContext(); \
|
|
context->cipherInfo = (void *)mmm##_ctx; \
|
|
context->cipherInfoLen = mmm##_FlattenSize(mmm##_ctx); \
|
|
context->currentMech = mech; \
|
|
context->hashUpdate = (SFTKHash)mmm##_Update; \
|
|
context->end = (SFTKEnd)mmm##_End; \
|
|
context->destroy = (SFTKDestroy)mmm##_DestroyContext; \
|
|
context->maxLen = mmm##_LENGTH; \
|
|
if (mmm##_ctx) \
|
|
mmm##_Begin(mmm##_ctx); \
|
|
else \
|
|
crv = CKR_HOST_MEMORY; \
|
|
break; \
|
|
}
|
|
|
|
switch (pMechanism->mechanism) {
|
|
INIT_MECH(CKM_MD2, MD2)
|
|
INIT_MECH(CKM_MD5, MD5)
|
|
INIT_MECH(CKM_SHA_1, SHA1)
|
|
INIT_MECH(CKM_SHA224, SHA224)
|
|
INIT_MECH(CKM_SHA256, SHA256)
|
|
INIT_MECH(CKM_SHA384, SHA384)
|
|
INIT_MECH(CKM_SHA512, SHA512)
|
|
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeContext(context);
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
sftk_SetContextByType(session, SFTK_HASH, context);
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* NSC_Digest digests data in a single part. */
|
|
CK_RV
|
|
NSC_Digest(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pData, CK_ULONG ulDataLen, CK_BYTE_PTR pDigest,
|
|
CK_ULONG_PTR pulDigestLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int digestLen;
|
|
unsigned int maxout = *pulDigestLen;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_HASH, PR_FALSE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (pDigest == NULL) {
|
|
*pulDigestLen = context->maxLen;
|
|
goto finish;
|
|
}
|
|
|
|
/* do it: */
|
|
(*context->hashUpdate)(context->cipherInfo, pData, ulDataLen);
|
|
/* NOTE: this assumes buf size is bigenough for the algorithm */
|
|
(*context->end)(context->cipherInfo, pDigest, &digestLen, maxout);
|
|
*pulDigestLen = digestLen;
|
|
|
|
sftk_TerminateOp(session, SFTK_HASH, context);
|
|
finish:
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* NSC_DigestUpdate continues a multiple-part message-digesting operation. */
|
|
CK_RV
|
|
NSC_DigestUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
|
|
CK_ULONG ulPartLen)
|
|
{
|
|
SFTKSessionContext *context;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_HASH, PR_TRUE, NULL);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
/* do it: */
|
|
(*context->hashUpdate)(context->cipherInfo, pPart, ulPartLen);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* NSC_DigestFinal finishes a multiple-part message-digesting operation. */
|
|
CK_RV
|
|
NSC_DigestFinal(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pDigest,
|
|
CK_ULONG_PTR pulDigestLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int maxout = *pulDigestLen;
|
|
unsigned int digestLen;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_HASH, PR_TRUE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (pDigest != NULL) {
|
|
(*context->end)(context->cipherInfo, pDigest, &digestLen, maxout);
|
|
*pulDigestLen = digestLen;
|
|
sftk_TerminateOp(session, SFTK_HASH, context);
|
|
} else {
|
|
*pulDigestLen = context->maxLen;
|
|
}
|
|
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/*
|
|
* these helper functions are used by Generic Macing and Signing functions
|
|
* that use hashes as part of their operations.
|
|
*/
|
|
#define DOSUB(mmm) \
|
|
static CK_RV \
|
|
sftk_doSub##mmm(SFTKSessionContext *context) \
|
|
{ \
|
|
mmm##Context *mmm##_ctx = mmm##_NewContext(); \
|
|
context->hashInfo = (void *)mmm##_ctx; \
|
|
context->hashUpdate = (SFTKHash)mmm##_Update; \
|
|
context->end = (SFTKEnd)mmm##_End; \
|
|
context->hashdestroy = (SFTKDestroy)mmm##_DestroyContext; \
|
|
if (!context->hashInfo) { \
|
|
return CKR_HOST_MEMORY; \
|
|
} \
|
|
mmm##_Begin(mmm##_ctx); \
|
|
return CKR_OK; \
|
|
}
|
|
|
|
DOSUB(MD2)
|
|
DOSUB(MD5)
|
|
DOSUB(SHA1)
|
|
DOSUB(SHA224)
|
|
DOSUB(SHA256)
|
|
DOSUB(SHA384)
|
|
DOSUB(SHA512)
|
|
|
|
static SECStatus
|
|
sftk_SignCopy(
|
|
CK_ULONG *copyLen,
|
|
void *out, unsigned int *outLength,
|
|
unsigned int maxLength,
|
|
const unsigned char *hashResult,
|
|
unsigned int hashResultLength)
|
|
{
|
|
unsigned int toCopy = *copyLen;
|
|
if (toCopy > maxLength) {
|
|
toCopy = maxLength;
|
|
}
|
|
if (toCopy > hashResultLength) {
|
|
toCopy = hashResultLength;
|
|
}
|
|
memcpy(out, hashResult, toCopy);
|
|
if (outLength) {
|
|
*outLength = toCopy;
|
|
}
|
|
return SECSuccess;
|
|
}
|
|
|
|
/* Verify is just a compare for HMAC */
|
|
static SECStatus
|
|
sftk_HMACCmp(CK_ULONG *copyLen, unsigned char *sig, unsigned int sigLen,
|
|
unsigned char *hash, unsigned int hashLen)
|
|
{
|
|
return (PORT_Memcmp(sig, hash, *copyLen) == 0) ? SECSuccess : SECFailure;
|
|
}
|
|
|
|
/*
|
|
* common HMAC initalization routine
|
|
*/
|
|
static CK_RV
|
|
sftk_doHMACInit(SFTKSessionContext *context, HASH_HashType hash,
|
|
SFTKObject *key, CK_ULONG mac_size)
|
|
{
|
|
SFTKAttribute *keyval;
|
|
HMACContext *HMACcontext;
|
|
CK_ULONG *intpointer;
|
|
const SECHashObject *hashObj = HASH_GetRawHashObject(hash);
|
|
PRBool isFIPS = (key->slot->slotID == FIPS_SLOT_ID);
|
|
|
|
/* required by FIPS 198 Section 4 */
|
|
if (isFIPS && (mac_size < 4 || mac_size < hashObj->length / 2)) {
|
|
return CKR_BUFFER_TOO_SMALL;
|
|
}
|
|
|
|
keyval = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (keyval == NULL)
|
|
return CKR_KEY_SIZE_RANGE;
|
|
|
|
HMACcontext = HMAC_Create(hashObj,
|
|
(const unsigned char *)keyval->attrib.pValue,
|
|
keyval->attrib.ulValueLen, isFIPS);
|
|
context->hashInfo = HMACcontext;
|
|
context->multi = PR_TRUE;
|
|
sftk_FreeAttribute(keyval);
|
|
if (context->hashInfo == NULL) {
|
|
if (PORT_GetError() == SEC_ERROR_INVALID_ARGS) {
|
|
return CKR_KEY_SIZE_RANGE;
|
|
}
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
context->hashUpdate = (SFTKHash)HMAC_Update;
|
|
context->end = (SFTKEnd)HMAC_Finish;
|
|
|
|
context->hashdestroy = (SFTKDestroy)HMAC_Destroy;
|
|
intpointer = PORT_New(CK_ULONG);
|
|
if (intpointer == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
*intpointer = mac_size;
|
|
context->cipherInfo = intpointer;
|
|
context->destroy = (SFTKDestroy)sftk_Space;
|
|
context->update = (SFTKCipher)sftk_SignCopy;
|
|
context->verify = (SFTKVerify)sftk_HMACCmp;
|
|
context->maxLen = hashObj->length;
|
|
HMAC_Begin(HMACcontext);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/*
|
|
* SSL Macing support. SSL Macs are inited, then update with the base
|
|
* hashing algorithm, then finalized in sign and verify
|
|
*/
|
|
|
|
/*
|
|
* FROM SSL:
|
|
* 60 bytes is 3 times the maximum length MAC size that is supported.
|
|
* We probably should have one copy of this table. We still need this table
|
|
* in ssl to 'sign' the handshake hashes.
|
|
*/
|
|
static unsigned char ssl_pad_1[60] = {
|
|
0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
|
|
0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
|
|
0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
|
|
0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
|
|
0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
|
|
0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
|
|
0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
|
|
0x36, 0x36, 0x36, 0x36
|
|
};
|
|
static unsigned char ssl_pad_2[60] = {
|
|
0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
|
|
0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
|
|
0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
|
|
0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
|
|
0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
|
|
0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
|
|
0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
|
|
0x5c, 0x5c, 0x5c, 0x5c
|
|
};
|
|
|
|
static SECStatus
|
|
sftk_SSLMACSign(SFTKSSLMACInfo *info, unsigned char *sig, unsigned int *sigLen,
|
|
unsigned int maxLen, unsigned char *hash, unsigned int hashLen)
|
|
{
|
|
unsigned char tmpBuf[SFTK_MAX_MAC_LENGTH];
|
|
unsigned int out;
|
|
|
|
info->begin(info->hashContext);
|
|
info->update(info->hashContext, info->key, info->keySize);
|
|
info->update(info->hashContext, ssl_pad_2, info->padSize);
|
|
info->update(info->hashContext, hash, hashLen);
|
|
info->end(info->hashContext, tmpBuf, &out, SFTK_MAX_MAC_LENGTH);
|
|
PORT_Memcpy(sig, tmpBuf, info->macSize);
|
|
*sigLen = info->macSize;
|
|
return SECSuccess;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_SSLMACVerify(SFTKSSLMACInfo *info, unsigned char *sig, unsigned int sigLen,
|
|
unsigned char *hash, unsigned int hashLen)
|
|
{
|
|
unsigned char tmpBuf[SFTK_MAX_MAC_LENGTH];
|
|
unsigned int out;
|
|
|
|
info->begin(info->hashContext);
|
|
info->update(info->hashContext, info->key, info->keySize);
|
|
info->update(info->hashContext, ssl_pad_2, info->padSize);
|
|
info->update(info->hashContext, hash, hashLen);
|
|
info->end(info->hashContext, tmpBuf, &out, SFTK_MAX_MAC_LENGTH);
|
|
return (PORT_Memcmp(sig, tmpBuf, info->macSize) == 0) ? SECSuccess : SECFailure;
|
|
}
|
|
|
|
/*
|
|
* common HMAC initalization routine
|
|
*/
|
|
static CK_RV
|
|
sftk_doSSLMACInit(SFTKSessionContext *context, SECOidTag oid,
|
|
SFTKObject *key, CK_ULONG mac_size)
|
|
{
|
|
SFTKAttribute *keyval;
|
|
SFTKBegin begin;
|
|
int padSize;
|
|
SFTKSSLMACInfo *sslmacinfo;
|
|
CK_RV crv = CKR_MECHANISM_INVALID;
|
|
|
|
if (oid == SEC_OID_SHA1) {
|
|
crv = sftk_doSubSHA1(context);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
begin = (SFTKBegin)SHA1_Begin;
|
|
padSize = 40;
|
|
} else {
|
|
crv = sftk_doSubMD5(context);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
begin = (SFTKBegin)MD5_Begin;
|
|
padSize = 48;
|
|
}
|
|
context->multi = PR_TRUE;
|
|
|
|
keyval = sftk_FindAttribute(key, CKA_VALUE);
|
|
if (keyval == NULL)
|
|
return CKR_KEY_SIZE_RANGE;
|
|
|
|
context->hashUpdate(context->hashInfo, keyval->attrib.pValue,
|
|
keyval->attrib.ulValueLen);
|
|
context->hashUpdate(context->hashInfo, ssl_pad_1, padSize);
|
|
sslmacinfo = (SFTKSSLMACInfo *)PORT_Alloc(sizeof(SFTKSSLMACInfo));
|
|
if (sslmacinfo == NULL) {
|
|
sftk_FreeAttribute(keyval);
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
sslmacinfo->macSize = mac_size;
|
|
sslmacinfo->hashContext = context->hashInfo;
|
|
PORT_Memcpy(sslmacinfo->key, keyval->attrib.pValue,
|
|
keyval->attrib.ulValueLen);
|
|
sslmacinfo->keySize = keyval->attrib.ulValueLen;
|
|
sslmacinfo->begin = begin;
|
|
sslmacinfo->end = context->end;
|
|
sslmacinfo->update = context->hashUpdate;
|
|
sslmacinfo->padSize = padSize;
|
|
sftk_FreeAttribute(keyval);
|
|
context->cipherInfo = (void *)sslmacinfo;
|
|
context->destroy = (SFTKDestroy)sftk_Space;
|
|
context->update = (SFTKCipher)sftk_SSLMACSign;
|
|
context->verify = (SFTKVerify)sftk_SSLMACVerify;
|
|
context->maxLen = mac_size;
|
|
return CKR_OK;
|
|
}
|
|
|
|
/*
|
|
************** Crypto Functions: Sign ************************
|
|
*/
|
|
|
|
/**
|
|
* Check if We're using CBCMacing and initialize the session context if we are.
|
|
* @param contextType SFTK_SIGN or SFTK_VERIFY
|
|
* @param keyUsage check whether key allows this usage
|
|
*/
|
|
static CK_RV
|
|
sftk_InitCBCMac(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism,
|
|
CK_OBJECT_HANDLE hKey, CK_ATTRIBUTE_TYPE keyUsage,
|
|
SFTKContextType contextType)
|
|
|
|
{
|
|
CK_MECHANISM cbc_mechanism;
|
|
CK_ULONG mac_bytes = SFTK_INVALID_MAC_SIZE;
|
|
CK_RC2_CBC_PARAMS rc2_params;
|
|
#if NSS_SOFTOKEN_DOES_RC5
|
|
CK_RC5_CBC_PARAMS rc5_params;
|
|
CK_RC5_MAC_GENERAL_PARAMS *rc5_mac;
|
|
#endif
|
|
unsigned char ivBlock[SFTK_MAX_BLOCK_SIZE];
|
|
SFTKSessionContext *context;
|
|
CK_RV crv;
|
|
unsigned int blockSize;
|
|
|
|
switch (pMechanism->mechanism) {
|
|
case CKM_RC2_MAC_GENERAL:
|
|
if (!pMechanism->pParameter) {
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
mac_bytes =
|
|
((CK_RC2_MAC_GENERAL_PARAMS *)pMechanism->pParameter)->ulMacLength;
|
|
/* fall through */
|
|
case CKM_RC2_MAC:
|
|
/* this works because ulEffectiveBits is in the same place in both the
|
|
* CK_RC2_MAC_GENERAL_PARAMS and CK_RC2_CBC_PARAMS */
|
|
rc2_params.ulEffectiveBits = ((CK_RC2_MAC_GENERAL_PARAMS *)
|
|
pMechanism->pParameter)
|
|
->ulEffectiveBits;
|
|
PORT_Memset(rc2_params.iv, 0, sizeof(rc2_params.iv));
|
|
cbc_mechanism.mechanism = CKM_RC2_CBC;
|
|
cbc_mechanism.pParameter = &rc2_params;
|
|
cbc_mechanism.ulParameterLen = sizeof(rc2_params);
|
|
blockSize = 8;
|
|
break;
|
|
#if NSS_SOFTOKEN_DOES_RC5
|
|
case CKM_RC5_MAC_GENERAL:
|
|
mac_bytes =
|
|
((CK_RC5_MAC_GENERAL_PARAMS *)pMechanism->pParameter)->ulMacLength;
|
|
/* fall through */
|
|
case CKM_RC5_MAC:
|
|
/* this works because ulEffectiveBits is in the same place in both the
|
|
* CK_RC5_MAC_GENERAL_PARAMS and CK_RC5_CBC_PARAMS */
|
|
rc5_mac = (CK_RC5_MAC_GENERAL_PARAMS *)pMechanism->pParameter;
|
|
rc5_params.ulWordsize = rc5_mac->ulWordsize;
|
|
rc5_params.ulRounds = rc5_mac->ulRounds;
|
|
rc5_params.pIv = ivBlock;
|
|
if ((blockSize = rc5_mac->ulWordsize * 2) > SFTK_MAX_BLOCK_SIZE)
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
rc5_params.ulIvLen = blockSize;
|
|
PORT_Memset(ivBlock, 0, blockSize);
|
|
cbc_mechanism.mechanism = CKM_RC5_CBC;
|
|
cbc_mechanism.pParameter = &rc5_params;
|
|
cbc_mechanism.ulParameterLen = sizeof(rc5_params);
|
|
break;
|
|
#endif
|
|
/* add cast and idea later */
|
|
case CKM_DES_MAC_GENERAL:
|
|
mac_bytes = *(CK_ULONG *)pMechanism->pParameter;
|
|
/* fall through */
|
|
case CKM_DES_MAC:
|
|
blockSize = 8;
|
|
PORT_Memset(ivBlock, 0, blockSize);
|
|
cbc_mechanism.mechanism = CKM_DES_CBC;
|
|
cbc_mechanism.pParameter = &ivBlock;
|
|
cbc_mechanism.ulParameterLen = blockSize;
|
|
break;
|
|
case CKM_DES3_MAC_GENERAL:
|
|
mac_bytes = *(CK_ULONG *)pMechanism->pParameter;
|
|
/* fall through */
|
|
case CKM_DES3_MAC:
|
|
blockSize = 8;
|
|
PORT_Memset(ivBlock, 0, blockSize);
|
|
cbc_mechanism.mechanism = CKM_DES3_CBC;
|
|
cbc_mechanism.pParameter = &ivBlock;
|
|
cbc_mechanism.ulParameterLen = blockSize;
|
|
break;
|
|
case CKM_CDMF_MAC_GENERAL:
|
|
mac_bytes = *(CK_ULONG *)pMechanism->pParameter;
|
|
/* fall through */
|
|
case CKM_CDMF_MAC:
|
|
blockSize = 8;
|
|
PORT_Memset(ivBlock, 0, blockSize);
|
|
cbc_mechanism.mechanism = CKM_CDMF_CBC;
|
|
cbc_mechanism.pParameter = &ivBlock;
|
|
cbc_mechanism.ulParameterLen = blockSize;
|
|
break;
|
|
case CKM_SEED_MAC_GENERAL:
|
|
mac_bytes = *(CK_ULONG *)pMechanism->pParameter;
|
|
/* fall through */
|
|
case CKM_SEED_MAC:
|
|
blockSize = 16;
|
|
PORT_Memset(ivBlock, 0, blockSize);
|
|
cbc_mechanism.mechanism = CKM_SEED_CBC;
|
|
cbc_mechanism.pParameter = &ivBlock;
|
|
cbc_mechanism.ulParameterLen = blockSize;
|
|
break;
|
|
case CKM_CAMELLIA_MAC_GENERAL:
|
|
mac_bytes = *(CK_ULONG *)pMechanism->pParameter;
|
|
/* fall through */
|
|
case CKM_CAMELLIA_MAC:
|
|
blockSize = 16;
|
|
PORT_Memset(ivBlock, 0, blockSize);
|
|
cbc_mechanism.mechanism = CKM_CAMELLIA_CBC;
|
|
cbc_mechanism.pParameter = &ivBlock;
|
|
cbc_mechanism.ulParameterLen = blockSize;
|
|
break;
|
|
case CKM_AES_MAC_GENERAL:
|
|
mac_bytes = *(CK_ULONG *)pMechanism->pParameter;
|
|
/* fall through */
|
|
case CKM_AES_MAC:
|
|
blockSize = 16;
|
|
PORT_Memset(ivBlock, 0, blockSize);
|
|
cbc_mechanism.mechanism = CKM_AES_CBC;
|
|
cbc_mechanism.pParameter = &ivBlock;
|
|
cbc_mechanism.ulParameterLen = blockSize;
|
|
break;
|
|
default:
|
|
return CKR_FUNCTION_NOT_SUPPORTED;
|
|
}
|
|
|
|
/* if MAC size is externally supplied, it should be checked.
|
|
*/
|
|
if (mac_bytes == SFTK_INVALID_MAC_SIZE)
|
|
mac_bytes = blockSize >> 1;
|
|
else {
|
|
if (mac_bytes > blockSize)
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
|
|
crv = sftk_CryptInit(hSession, &cbc_mechanism, hKey,
|
|
CKA_ENCRYPT, /* CBC mech is able to ENCRYPT, not SIGN/VERIFY */
|
|
keyUsage, contextType, PR_TRUE);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
crv = sftk_GetContext(hSession, &context, contextType, PR_TRUE, NULL);
|
|
|
|
/* this shouldn't happen! */
|
|
PORT_Assert(crv == CKR_OK);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
context->blockSize = blockSize;
|
|
context->macSize = mac_bytes;
|
|
return CKR_OK;
|
|
}
|
|
|
|
/*
|
|
* encode RSA PKCS #1 Signature data before signing...
|
|
*/
|
|
static SECStatus
|
|
sftk_RSAHashSign(SFTKHashSignInfo *info, unsigned char *sig,
|
|
unsigned int *sigLen, unsigned int maxLen,
|
|
const unsigned char *hash, unsigned int hashLen)
|
|
{
|
|
PORT_Assert(info->key->keyType == NSSLOWKEYRSAKey);
|
|
if (info->key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
return RSA_HashSign(info->hashOid, info->key, sig, sigLen, maxLen,
|
|
hash, hashLen);
|
|
}
|
|
|
|
/* XXX Old template; want to expunge it eventually. */
|
|
static DERTemplate SECAlgorithmIDTemplate[] = {
|
|
{ DER_SEQUENCE,
|
|
0, NULL, sizeof(SECAlgorithmID) },
|
|
{ DER_OBJECT_ID,
|
|
offsetof(SECAlgorithmID, algorithm) },
|
|
{ DER_OPTIONAL | DER_ANY,
|
|
offsetof(SECAlgorithmID, parameters) },
|
|
{ 0 }
|
|
};
|
|
|
|
/*
|
|
* XXX OLD Template. Once all uses have been switched over to new one,
|
|
* remove this.
|
|
*/
|
|
static DERTemplate SGNDigestInfoTemplate[] = {
|
|
{ DER_SEQUENCE,
|
|
0, NULL, sizeof(SGNDigestInfo) },
|
|
{ DER_INLINE,
|
|
offsetof(SGNDigestInfo, digestAlgorithm),
|
|
SECAlgorithmIDTemplate },
|
|
{ DER_OCTET_STRING,
|
|
offsetof(SGNDigestInfo, digest) },
|
|
{ 0 }
|
|
};
|
|
|
|
/*
|
|
* encode RSA PKCS #1 Signature data before signing...
|
|
*/
|
|
SECStatus
|
|
RSA_HashSign(SECOidTag hashOid, NSSLOWKEYPrivateKey *key,
|
|
unsigned char *sig, unsigned int *sigLen, unsigned int maxLen,
|
|
const unsigned char *hash, unsigned int hashLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
SECItem digder;
|
|
PLArenaPool *arena = NULL;
|
|
SGNDigestInfo *di = NULL;
|
|
|
|
digder.data = NULL;
|
|
|
|
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
|
|
if (!arena) {
|
|
goto loser;
|
|
}
|
|
|
|
/* Construct digest info */
|
|
di = SGN_CreateDigestInfo(hashOid, hash, hashLen);
|
|
if (!di) {
|
|
goto loser;
|
|
}
|
|
|
|
/* Der encode the digest as a DigestInfo */
|
|
rv = DER_Encode(arena, &digder, SGNDigestInfoTemplate, di);
|
|
if (rv != SECSuccess) {
|
|
goto loser;
|
|
}
|
|
|
|
/*
|
|
** Encrypt signature after constructing appropriate PKCS#1 signature
|
|
** block
|
|
*/
|
|
rv = RSA_Sign(&key->u.rsa, sig, sigLen, maxLen, digder.data,
|
|
digder.len);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
|
|
loser:
|
|
SGN_DestroyDigestInfo(di);
|
|
if (arena != NULL) {
|
|
PORT_FreeArena(arena, PR_FALSE);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSASign(NSSLOWKEYPrivateKey *key, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxOutputLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
rv = RSA_Sign(&key->u.rsa, output, outputLen, maxOutputLen, input,
|
|
inputLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSASignRaw(NSSLOWKEYPrivateKey *key, unsigned char *output,
|
|
unsigned int *outputLen, unsigned int maxOutputLen,
|
|
const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
rv = RSA_SignRaw(&key->u.rsa, output, outputLen, maxOutputLen, input,
|
|
inputLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSASignPSS(SFTKHashSignInfo *info, unsigned char *sig,
|
|
unsigned int *sigLen, unsigned int maxLen,
|
|
const unsigned char *hash, unsigned int hashLen)
|
|
{
|
|
SECStatus rv = SECFailure;
|
|
HASH_HashType hashAlg;
|
|
HASH_HashType maskHashAlg;
|
|
CK_RSA_PKCS_PSS_PARAMS *params = (CK_RSA_PKCS_PSS_PARAMS *)info->params;
|
|
|
|
PORT_Assert(info->key->keyType == NSSLOWKEYRSAKey);
|
|
if (info->key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
hashAlg = GetHashTypeFromMechanism(params->hashAlg);
|
|
maskHashAlg = GetHashTypeFromMechanism(params->mgf);
|
|
|
|
rv = RSA_SignPSS(&info->key->u.rsa, hashAlg, maskHashAlg, NULL,
|
|
params->sLen, sig, sigLen, maxLen, hash, hashLen);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
nsc_DSA_Verify_Stub(void *ctx, void *sigBuf, unsigned int sigLen,
|
|
void *dataBuf, unsigned int dataLen)
|
|
{
|
|
SECItem signature, digest;
|
|
NSSLOWKEYPublicKey *key = (NSSLOWKEYPublicKey *)ctx;
|
|
|
|
signature.data = (unsigned char *)sigBuf;
|
|
signature.len = sigLen;
|
|
digest.data = (unsigned char *)dataBuf;
|
|
digest.len = dataLen;
|
|
return DSA_VerifyDigest(&(key->u.dsa), &signature, &digest);
|
|
}
|
|
|
|
static SECStatus
|
|
nsc_DSA_Sign_Stub(void *ctx, void *sigBuf,
|
|
unsigned int *sigLen, unsigned int maxSigLen,
|
|
void *dataBuf, unsigned int dataLen)
|
|
{
|
|
SECItem signature, digest;
|
|
SECStatus rv;
|
|
NSSLOWKEYPrivateKey *key = (NSSLOWKEYPrivateKey *)ctx;
|
|
|
|
signature.data = (unsigned char *)sigBuf;
|
|
signature.len = maxSigLen;
|
|
digest.data = (unsigned char *)dataBuf;
|
|
digest.len = dataLen;
|
|
rv = DSA_SignDigest(&(key->u.dsa), &signature, &digest);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
*sigLen = signature.len;
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
nsc_ECDSAVerifyStub(void *ctx, void *sigBuf, unsigned int sigLen,
|
|
void *dataBuf, unsigned int dataLen)
|
|
{
|
|
SECItem signature, digest;
|
|
NSSLOWKEYPublicKey *key = (NSSLOWKEYPublicKey *)ctx;
|
|
|
|
signature.data = (unsigned char *)sigBuf;
|
|
signature.len = sigLen;
|
|
digest.data = (unsigned char *)dataBuf;
|
|
digest.len = dataLen;
|
|
return ECDSA_VerifyDigest(&(key->u.ec), &signature, &digest);
|
|
}
|
|
|
|
static SECStatus
|
|
nsc_ECDSASignStub(void *ctx, void *sigBuf,
|
|
unsigned int *sigLen, unsigned int maxSigLen,
|
|
void *dataBuf, unsigned int dataLen)
|
|
{
|
|
SECItem signature, digest;
|
|
SECStatus rv;
|
|
NSSLOWKEYPrivateKey *key = (NSSLOWKEYPrivateKey *)ctx;
|
|
|
|
signature.data = (unsigned char *)sigBuf;
|
|
signature.len = maxSigLen;
|
|
digest.data = (unsigned char *)dataBuf;
|
|
digest.len = dataLen;
|
|
rv = ECDSA_SignDigest(&(key->u.ec), &signature, &digest);
|
|
if (rv != SECSuccess && PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
*sigLen = signature.len;
|
|
return rv;
|
|
}
|
|
|
|
/* NSC_SignInit setups up the signing operations. There are three basic
|
|
* types of signing:
|
|
* (1) the tradition single part, where "Raw RSA" or "Raw DSA" is applied
|
|
* to data in a single Sign operation (which often looks a lot like an
|
|
* encrypt, with data coming in and data going out).
|
|
* (2) Hash based signing, where we continually hash the data, then apply
|
|
* some sort of signature to the end.
|
|
* (3) Block Encryption CBC MAC's, where the Data is encrypted with a key,
|
|
* and only the final block is part of the mac.
|
|
*
|
|
* For case number 3, we initialize a context much like the Encryption Context
|
|
* (in fact we share code). We detect case 3 in C_SignUpdate, C_Sign, and
|
|
* C_Final by the following method... if it's not multi-part, and it's doesn't
|
|
* have a hash context, it must be a block Encryption CBC MAC.
|
|
*
|
|
* For case number 2, we initialize a hash structure, as well as make it
|
|
* multi-part. Updates are simple calls to the hash update function. Final
|
|
* calls the hashend, then passes the result to the 'update' function (which
|
|
* operates as a final signature function). In some hash based MAC'ing (as
|
|
* opposed to hash base signatures), the update function is can be simply a
|
|
* copy (as is the case with HMAC).
|
|
*/
|
|
CK_RV
|
|
NSC_SignInit(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKObject *key;
|
|
SFTKSessionContext *context;
|
|
CK_KEY_TYPE key_type;
|
|
CK_RV crv = CKR_OK;
|
|
NSSLOWKEYPrivateKey *privKey;
|
|
SFTKHashSignInfo *info = NULL;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* Block Cipher MACing Algorithms use a different Context init method..*/
|
|
crv = sftk_InitCBCMac(hSession, pMechanism, hKey, CKA_SIGN, SFTK_SIGN);
|
|
if (crv != CKR_FUNCTION_NOT_SUPPORTED)
|
|
return crv;
|
|
|
|
/* we're not using a block cipher mac */
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
crv = sftk_InitGeneric(session, &context, SFTK_SIGN, &key, hKey, &key_type,
|
|
CKO_PRIVATE_KEY, CKA_SIGN);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
context->multi = PR_FALSE;
|
|
|
|
#define INIT_RSA_SIGN_MECH(mmm) \
|
|
case CKM_##mmm##_RSA_PKCS: \
|
|
context->multi = PR_TRUE; \
|
|
crv = sftk_doSub##mmm(context); \
|
|
if (crv != CKR_OK) \
|
|
break; \
|
|
context->update = (SFTKCipher)sftk_RSAHashSign; \
|
|
info = PORT_New(SFTKHashSignInfo); \
|
|
if (info == NULL) { \
|
|
crv = CKR_HOST_MEMORY; \
|
|
break; \
|
|
} \
|
|
info->hashOid = SEC_OID_##mmm; \
|
|
goto finish_rsa;
|
|
|
|
switch (pMechanism->mechanism) {
|
|
INIT_RSA_SIGN_MECH(MD5)
|
|
INIT_RSA_SIGN_MECH(MD2)
|
|
INIT_RSA_SIGN_MECH(SHA1)
|
|
INIT_RSA_SIGN_MECH(SHA224)
|
|
INIT_RSA_SIGN_MECH(SHA256)
|
|
INIT_RSA_SIGN_MECH(SHA384)
|
|
INIT_RSA_SIGN_MECH(SHA512)
|
|
|
|
case CKM_RSA_PKCS:
|
|
context->update = (SFTKCipher)sftk_RSASign;
|
|
goto finish_rsa;
|
|
case CKM_RSA_X_509:
|
|
context->update = (SFTKCipher)sftk_RSASignRaw;
|
|
finish_rsa:
|
|
if (key_type != CKK_RSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
context->rsa = PR_TRUE;
|
|
privKey = sftk_GetPrivKey(key, CKK_RSA, &crv);
|
|
if (privKey == NULL) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
/* OK, info is allocated only if we're doing hash and sign mechanism.
|
|
* It's necessary to be able to set the correct OID in the final
|
|
* signature.
|
|
*/
|
|
if (info) {
|
|
info->key = privKey;
|
|
context->cipherInfo = info;
|
|
context->destroy = (SFTKDestroy)sftk_Space;
|
|
} else {
|
|
context->cipherInfo = privKey;
|
|
context->destroy = (SFTKDestroy)sftk_Null;
|
|
}
|
|
context->maxLen = nsslowkey_PrivateModulusLen(privKey);
|
|
break;
|
|
case CKM_RSA_PKCS_PSS:
|
|
if (key_type != CKK_RSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
context->rsa = PR_TRUE;
|
|
if (pMechanism->ulParameterLen != sizeof(CK_RSA_PKCS_PSS_PARAMS) ||
|
|
!sftk_ValidatePssParams((const CK_RSA_PKCS_PSS_PARAMS *)pMechanism->pParameter)) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
info = PORT_New(SFTKHashSignInfo);
|
|
if (info == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
info->params = pMechanism->pParameter;
|
|
info->key = sftk_GetPrivKey(key, CKK_RSA, &crv);
|
|
if (info->key == NULL) {
|
|
PORT_Free(info);
|
|
break;
|
|
}
|
|
context->cipherInfo = info;
|
|
context->destroy = (SFTKDestroy)sftk_Space;
|
|
context->update = (SFTKCipher)sftk_RSASignPSS;
|
|
context->maxLen = nsslowkey_PrivateModulusLen(info->key);
|
|
break;
|
|
|
|
case CKM_DSA_SHA1:
|
|
context->multi = PR_TRUE;
|
|
crv = sftk_doSubSHA1(context);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
/* fall through */
|
|
case CKM_DSA:
|
|
if (key_type != CKK_DSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
privKey = sftk_GetPrivKey(key, CKK_DSA, &crv);
|
|
if (privKey == NULL) {
|
|
break;
|
|
}
|
|
context->cipherInfo = privKey;
|
|
context->update = (SFTKCipher)nsc_DSA_Sign_Stub;
|
|
context->destroy = (privKey == key->objectInfo) ? (SFTKDestroy)sftk_Null : (SFTKDestroy)sftk_FreePrivKey;
|
|
context->maxLen = DSA_MAX_SIGNATURE_LEN;
|
|
|
|
break;
|
|
|
|
case CKM_ECDSA_SHA1:
|
|
context->multi = PR_TRUE;
|
|
crv = sftk_doSubSHA1(context);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
/* fall through */
|
|
case CKM_ECDSA:
|
|
if (key_type != CKK_EC) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
privKey = sftk_GetPrivKey(key, CKK_EC, &crv);
|
|
if (privKey == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->cipherInfo = privKey;
|
|
context->update = (SFTKCipher)nsc_ECDSASignStub;
|
|
context->destroy = (privKey == key->objectInfo) ? (SFTKDestroy)sftk_Null : (SFTKDestroy)sftk_FreePrivKey;
|
|
context->maxLen = MAX_ECKEY_LEN * 2;
|
|
|
|
break;
|
|
|
|
#define INIT_HMAC_MECH(mmm) \
|
|
case CKM_##mmm##_HMAC_GENERAL: \
|
|
PORT_Assert(pMechanism->pParameter); \
|
|
if (!pMechanism->pParameter) { \
|
|
crv = CKR_MECHANISM_PARAM_INVALID; \
|
|
break; \
|
|
} \
|
|
crv = sftk_doHMACInit(context, HASH_Alg##mmm, key, \
|
|
*(CK_ULONG *)pMechanism->pParameter); \
|
|
break; \
|
|
case CKM_##mmm##_HMAC: \
|
|
crv = sftk_doHMACInit(context, HASH_Alg##mmm, key, mmm##_LENGTH); \
|
|
break;
|
|
|
|
INIT_HMAC_MECH(MD2)
|
|
INIT_HMAC_MECH(MD5)
|
|
INIT_HMAC_MECH(SHA224)
|
|
INIT_HMAC_MECH(SHA256)
|
|
INIT_HMAC_MECH(SHA384)
|
|
INIT_HMAC_MECH(SHA512)
|
|
|
|
case CKM_SHA_1_HMAC_GENERAL:
|
|
PORT_Assert(pMechanism->pParameter);
|
|
if (!pMechanism->pParameter) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_doHMACInit(context, HASH_AlgSHA1, key,
|
|
*(CK_ULONG *)pMechanism->pParameter);
|
|
break;
|
|
case CKM_SHA_1_HMAC:
|
|
crv = sftk_doHMACInit(context, HASH_AlgSHA1, key, SHA1_LENGTH);
|
|
break;
|
|
|
|
case CKM_SSL3_MD5_MAC:
|
|
PORT_Assert(pMechanism->pParameter);
|
|
if (!pMechanism->pParameter) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_doSSLMACInit(context, SEC_OID_MD5, key,
|
|
*(CK_ULONG *)pMechanism->pParameter);
|
|
break;
|
|
case CKM_SSL3_SHA1_MAC:
|
|
PORT_Assert(pMechanism->pParameter);
|
|
if (!pMechanism->pParameter) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_doSSLMACInit(context, SEC_OID_SHA1, key,
|
|
*(CK_ULONG *)pMechanism->pParameter);
|
|
break;
|
|
case CKM_TLS_PRF_GENERAL:
|
|
crv = sftk_TLSPRFInit(context, key, key_type, HASH_AlgNULL, 0);
|
|
break;
|
|
case CKM_TLS_MAC: {
|
|
CK_TLS_MAC_PARAMS *tls12_mac_params;
|
|
HASH_HashType tlsPrfHash;
|
|
const char *label;
|
|
|
|
if (pMechanism->ulParameterLen != sizeof(CK_TLS_MAC_PARAMS)) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
tls12_mac_params = (CK_TLS_MAC_PARAMS *)pMechanism->pParameter;
|
|
if (tls12_mac_params->prfMechanism == CKM_TLS_PRF) {
|
|
/* The TLS 1.0 and 1.1 PRF */
|
|
tlsPrfHash = HASH_AlgNULL;
|
|
if (tls12_mac_params->ulMacLength != 12) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
} else {
|
|
/* The hash function for the TLS 1.2 PRF */
|
|
tlsPrfHash =
|
|
GetHashTypeFromMechanism(tls12_mac_params->prfMechanism);
|
|
if (tlsPrfHash == HASH_AlgNULL ||
|
|
tls12_mac_params->ulMacLength < 12) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
}
|
|
if (tls12_mac_params->ulServerOrClient == 1) {
|
|
label = "server finished";
|
|
} else if (tls12_mac_params->ulServerOrClient == 2) {
|
|
label = "client finished";
|
|
} else {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_TLSPRFInit(context, key, key_type, tlsPrfHash,
|
|
tls12_mac_params->ulMacLength);
|
|
if (crv == CKR_OK) {
|
|
context->hashUpdate(context->hashInfo, label, 15);
|
|
}
|
|
break;
|
|
}
|
|
case CKM_NSS_TLS_PRF_GENERAL_SHA256:
|
|
crv = sftk_TLSPRFInit(context, key, key_type, HASH_AlgSHA256, 0);
|
|
break;
|
|
|
|
case CKM_NSS_HMAC_CONSTANT_TIME: {
|
|
sftk_MACConstantTimeCtx *ctx =
|
|
sftk_HMACConstantTime_New(pMechanism, key);
|
|
CK_ULONG *intpointer;
|
|
|
|
if (ctx == NULL) {
|
|
crv = CKR_ARGUMENTS_BAD;
|
|
break;
|
|
}
|
|
intpointer = PORT_New(CK_ULONG);
|
|
if (intpointer == NULL) {
|
|
PORT_Free(ctx);
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
*intpointer = ctx->hash->length;
|
|
|
|
context->cipherInfo = intpointer;
|
|
context->hashInfo = ctx;
|
|
context->currentMech = pMechanism->mechanism;
|
|
context->hashUpdate = sftk_HMACConstantTime_Update;
|
|
context->hashdestroy = sftk_MACConstantTime_DestroyContext;
|
|
context->end = sftk_MACConstantTime_EndHash;
|
|
context->update = (SFTKCipher)sftk_SignCopy;
|
|
context->destroy = sftk_Space;
|
|
context->maxLen = 64;
|
|
context->multi = PR_TRUE;
|
|
break;
|
|
}
|
|
|
|
case CKM_NSS_SSL3_MAC_CONSTANT_TIME: {
|
|
sftk_MACConstantTimeCtx *ctx =
|
|
sftk_SSLv3MACConstantTime_New(pMechanism, key);
|
|
CK_ULONG *intpointer;
|
|
|
|
if (ctx == NULL) {
|
|
crv = CKR_ARGUMENTS_BAD;
|
|
break;
|
|
}
|
|
intpointer = PORT_New(CK_ULONG);
|
|
if (intpointer == NULL) {
|
|
PORT_Free(ctx);
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
*intpointer = ctx->hash->length;
|
|
|
|
context->cipherInfo = intpointer;
|
|
context->hashInfo = ctx;
|
|
context->currentMech = pMechanism->mechanism;
|
|
context->hashUpdate = sftk_SSLv3MACConstantTime_Update;
|
|
context->hashdestroy = sftk_MACConstantTime_DestroyContext;
|
|
context->end = sftk_MACConstantTime_EndHash;
|
|
context->update = (SFTKCipher)sftk_SignCopy;
|
|
context->destroy = sftk_Space;
|
|
context->maxLen = 64;
|
|
context->multi = PR_TRUE;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
if (info)
|
|
PORT_Free(info);
|
|
sftk_FreeContext(context);
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
sftk_SetContextByType(session, SFTK_SIGN, context);
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/** MAC one block of data by block cipher
|
|
*/
|
|
static CK_RV
|
|
sftk_MACBlock(SFTKSessionContext *ctx, void *blk)
|
|
{
|
|
unsigned int outlen;
|
|
return (SECSuccess == (ctx->update)(ctx->cipherInfo, ctx->macBuf, &outlen,
|
|
SFTK_MAX_BLOCK_SIZE, blk, ctx->blockSize))
|
|
? CKR_OK
|
|
: sftk_MapCryptError(PORT_GetError());
|
|
}
|
|
|
|
/** MAC last (incomplete) block of data by block cipher
|
|
*
|
|
* Call once, then terminate MACing operation.
|
|
*/
|
|
static CK_RV
|
|
sftk_MACFinal(SFTKSessionContext *ctx)
|
|
{
|
|
unsigned int padLen = ctx->padDataLength;
|
|
/* pad and proceed the residual */
|
|
if (padLen) {
|
|
/* shd clr ctx->padLen to make sftk_MACFinal idempotent */
|
|
PORT_Memset(ctx->padBuf + padLen, 0, ctx->blockSize - padLen);
|
|
return sftk_MACBlock(ctx, ctx->padBuf);
|
|
} else
|
|
return CKR_OK;
|
|
}
|
|
|
|
/** The common implementation for {Sign,Verify}Update. (S/V only vary in their
|
|
* setup and final operations).
|
|
*
|
|
* A call which results in an error terminates the operation [PKCS#11,v2.11]
|
|
*/
|
|
static CK_RV
|
|
sftk_MACUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
|
|
CK_ULONG ulPartLen, SFTKContextType type)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
CK_RV crv;
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, type, PR_TRUE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (context->hashInfo) {
|
|
(*context->hashUpdate)(context->hashInfo, pPart, ulPartLen);
|
|
} else {
|
|
/* must be block cipher MACing */
|
|
|
|
unsigned int blkSize = context->blockSize;
|
|
unsigned char *residual = /* free room in context->padBuf */
|
|
context->padBuf + context->padDataLength;
|
|
unsigned int minInput = /* min input for MACing at least one block */
|
|
blkSize - context->padDataLength;
|
|
|
|
/* not enough data even for one block */
|
|
if (ulPartLen < minInput) {
|
|
PORT_Memcpy(residual, pPart, ulPartLen);
|
|
context->padDataLength += ulPartLen;
|
|
goto cleanup;
|
|
}
|
|
/* MACing residual */
|
|
if (context->padDataLength) {
|
|
PORT_Memcpy(residual, pPart, minInput);
|
|
ulPartLen -= minInput;
|
|
pPart += minInput;
|
|
if (CKR_OK != (crv = sftk_MACBlock(context, context->padBuf)))
|
|
goto terminate;
|
|
}
|
|
/* MACing full blocks */
|
|
while (ulPartLen >= blkSize) {
|
|
if (CKR_OK != (crv = sftk_MACBlock(context, pPart)))
|
|
goto terminate;
|
|
ulPartLen -= blkSize;
|
|
pPart += blkSize;
|
|
}
|
|
/* save the residual */
|
|
if ((context->padDataLength = ulPartLen))
|
|
PORT_Memcpy(context->padBuf, pPart, ulPartLen);
|
|
} /* blk cipher MACing */
|
|
|
|
goto cleanup;
|
|
|
|
terminate:
|
|
sftk_TerminateOp(session, type, context);
|
|
cleanup:
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_SignUpdate continues a multiple-part signature operation,
|
|
* where the signature is (will be) an appendix to the data,
|
|
* and plaintext cannot be recovered from the signature
|
|
*
|
|
* A call which results in an error terminates the operation [PKCS#11,v2.11]
|
|
*/
|
|
CK_RV
|
|
NSC_SignUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
|
|
CK_ULONG ulPartLen)
|
|
{
|
|
CHECK_FORK();
|
|
return sftk_MACUpdate(hSession, pPart, ulPartLen, SFTK_SIGN);
|
|
}
|
|
|
|
/* NSC_SignFinal finishes a multiple-part signature operation,
|
|
* returning the signature. */
|
|
CK_RV
|
|
NSC_SignFinal(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pSignature,
|
|
CK_ULONG_PTR pulSignatureLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int outlen;
|
|
unsigned int maxoutlen = *pulSignatureLen;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_SIGN, PR_TRUE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (context->hashInfo) {
|
|
unsigned int digestLen;
|
|
unsigned char tmpbuf[SFTK_MAX_MAC_LENGTH];
|
|
|
|
if (!pSignature) {
|
|
outlen = context->maxLen;
|
|
goto finish;
|
|
}
|
|
(*context->end)(context->hashInfo, tmpbuf, &digestLen, sizeof(tmpbuf));
|
|
if (SECSuccess != (context->update)(context->cipherInfo, pSignature,
|
|
&outlen, maxoutlen, tmpbuf, digestLen))
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
/* CKR_BUFFER_TOO_SMALL here isn't continuable, let operation terminate.
|
|
* Keeping "too small" CK_RV intact is a standard violation, but allows
|
|
* application read EXACT signature length */
|
|
} else {
|
|
/* must be block cipher MACing */
|
|
outlen = context->macSize;
|
|
/* null or "too small" buf doesn't terminate operation [PKCS#11,v2.11]*/
|
|
if (!pSignature || maxoutlen < outlen) {
|
|
if (pSignature)
|
|
crv = CKR_BUFFER_TOO_SMALL;
|
|
goto finish;
|
|
}
|
|
if (CKR_OK == (crv = sftk_MACFinal(context)))
|
|
PORT_Memcpy(pSignature, context->macBuf, outlen);
|
|
}
|
|
|
|
sftk_TerminateOp(session, SFTK_SIGN, context);
|
|
finish:
|
|
*pulSignatureLen = outlen;
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_Sign signs (encrypts with private key) data in a single part,
|
|
* where the signature is (will be) an appendix to the data,
|
|
* and plaintext cannot be recovered from the signature */
|
|
CK_RV
|
|
NSC_Sign(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pData, CK_ULONG ulDataLen, CK_BYTE_PTR pSignature,
|
|
CK_ULONG_PTR pulSignatureLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_SIGN, PR_FALSE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (!pSignature) {
|
|
/* see also how C_SignUpdate implements this */
|
|
*pulSignatureLen = (!context->multi || context->hashInfo)
|
|
? context->maxLen
|
|
: context->macSize; /* must be block cipher MACing */
|
|
goto finish;
|
|
}
|
|
|
|
/* multi part Signing are completely implemented by SignUpdate and
|
|
* sign Final */
|
|
if (context->multi) {
|
|
/* SignFinal can't follow failed SignUpdate */
|
|
if (CKR_OK == (crv = NSC_SignUpdate(hSession, pData, ulDataLen)))
|
|
crv = NSC_SignFinal(hSession, pSignature, pulSignatureLen);
|
|
} else {
|
|
/* single-part PKC signature (e.g. CKM_ECDSA) */
|
|
unsigned int outlen;
|
|
unsigned int maxoutlen = *pulSignatureLen;
|
|
if (SECSuccess != (*context->update)(context->cipherInfo, pSignature,
|
|
&outlen, maxoutlen, pData, ulDataLen))
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
*pulSignatureLen = (CK_ULONG)outlen;
|
|
/* "too small" here is certainly continuable */
|
|
if (crv != CKR_BUFFER_TOO_SMALL)
|
|
sftk_TerminateOp(session, SFTK_SIGN, context);
|
|
} /* single-part */
|
|
|
|
finish:
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
************** Crypto Functions: Sign Recover ************************
|
|
*/
|
|
/* NSC_SignRecoverInit initializes a signature operation,
|
|
* where the (digest) data can be recovered from the signature.
|
|
* E.g. encryption with the user's private key */
|
|
CK_RV
|
|
NSC_SignRecoverInit(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
|
|
{
|
|
CHECK_FORK();
|
|
|
|
switch (pMechanism->mechanism) {
|
|
case CKM_RSA_PKCS:
|
|
case CKM_RSA_X_509:
|
|
return NSC_SignInit(hSession, pMechanism, hKey);
|
|
default:
|
|
break;
|
|
}
|
|
return CKR_MECHANISM_INVALID;
|
|
}
|
|
|
|
/* NSC_SignRecover signs data in a single operation
|
|
* where the (digest) data can be recovered from the signature.
|
|
* E.g. encryption with the user's private key */
|
|
CK_RV
|
|
NSC_SignRecover(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData,
|
|
CK_ULONG ulDataLen, CK_BYTE_PTR pSignature, CK_ULONG_PTR pulSignatureLen)
|
|
{
|
|
CHECK_FORK();
|
|
|
|
return NSC_Sign(hSession, pData, ulDataLen, pSignature, pulSignatureLen);
|
|
}
|
|
|
|
/*
|
|
************** Crypto Functions: verify ************************
|
|
*/
|
|
|
|
/* Handle RSA Signature formatting */
|
|
static SECStatus
|
|
sftk_hashCheckSign(SFTKHashVerifyInfo *info, const unsigned char *sig,
|
|
unsigned int sigLen, const unsigned char *digest,
|
|
unsigned int digestLen)
|
|
{
|
|
PORT_Assert(info->key->keyType == NSSLOWKEYRSAKey);
|
|
if (info->key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
return RSA_HashCheckSign(info->hashOid, info->key, sig, sigLen, digest,
|
|
digestLen);
|
|
}
|
|
|
|
SECStatus
|
|
RSA_HashCheckSign(SECOidTag digestOid, NSSLOWKEYPublicKey *key,
|
|
const unsigned char *sig, unsigned int sigLen,
|
|
const unsigned char *digestData, unsigned int digestLen)
|
|
{
|
|
unsigned char *pkcs1DigestInfoData;
|
|
SECItem pkcs1DigestInfo;
|
|
SECItem digest;
|
|
unsigned int bufferSize;
|
|
SECStatus rv;
|
|
|
|
/* pkcs1DigestInfo.data must be less than key->u.rsa.modulus.len */
|
|
bufferSize = key->u.rsa.modulus.len;
|
|
pkcs1DigestInfoData = PORT_ZAlloc(bufferSize);
|
|
if (!pkcs1DigestInfoData) {
|
|
PORT_SetError(SEC_ERROR_NO_MEMORY);
|
|
return SECFailure;
|
|
}
|
|
|
|
pkcs1DigestInfo.data = pkcs1DigestInfoData;
|
|
pkcs1DigestInfo.len = bufferSize;
|
|
|
|
/* decrypt the block */
|
|
rv = RSA_CheckSignRecover(&key->u.rsa, pkcs1DigestInfo.data,
|
|
&pkcs1DigestInfo.len, pkcs1DigestInfo.len,
|
|
sig, sigLen);
|
|
if (rv != SECSuccess) {
|
|
PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
|
|
} else {
|
|
digest.data = (PRUint8 *)digestData;
|
|
digest.len = digestLen;
|
|
rv = _SGN_VerifyPKCS1DigestInfo(
|
|
digestOid, &digest, &pkcs1DigestInfo,
|
|
PR_FALSE /*XXX: unsafeAllowMissingParameters*/);
|
|
}
|
|
|
|
PORT_Free(pkcs1DigestInfoData);
|
|
return rv;
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSACheckSign(NSSLOWKEYPublicKey *key, const unsigned char *sig,
|
|
unsigned int sigLen, const unsigned char *digest,
|
|
unsigned int digestLen)
|
|
{
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
return RSA_CheckSign(&key->u.rsa, sig, sigLen, digest, digestLen);
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSACheckSignRaw(NSSLOWKEYPublicKey *key, const unsigned char *sig,
|
|
unsigned int sigLen, const unsigned char *digest,
|
|
unsigned int digestLen)
|
|
{
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
return RSA_CheckSignRaw(&key->u.rsa, sig, sigLen, digest, digestLen);
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSACheckSignPSS(SFTKHashVerifyInfo *info, const unsigned char *sig,
|
|
unsigned int sigLen, const unsigned char *digest,
|
|
unsigned int digestLen)
|
|
{
|
|
HASH_HashType hashAlg;
|
|
HASH_HashType maskHashAlg;
|
|
CK_RSA_PKCS_PSS_PARAMS *params = (CK_RSA_PKCS_PSS_PARAMS *)info->params;
|
|
|
|
PORT_Assert(info->key->keyType == NSSLOWKEYRSAKey);
|
|
if (info->key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
hashAlg = GetHashTypeFromMechanism(params->hashAlg);
|
|
maskHashAlg = GetHashTypeFromMechanism(params->mgf);
|
|
|
|
return RSA_CheckSignPSS(&info->key->u.rsa, hashAlg, maskHashAlg,
|
|
params->sLen, sig, sigLen, digest, digestLen);
|
|
}
|
|
|
|
/* NSC_VerifyInit initializes a verification operation,
|
|
* where the signature is an appendix to the data,
|
|
* and plaintext cannot be recovered from the signature (e.g. DSA) */
|
|
CK_RV
|
|
NSC_VerifyInit(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKObject *key;
|
|
SFTKSessionContext *context;
|
|
CK_KEY_TYPE key_type;
|
|
CK_RV crv = CKR_OK;
|
|
NSSLOWKEYPublicKey *pubKey;
|
|
SFTKHashVerifyInfo *info = NULL;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* Block Cipher MACing Algorithms use a different Context init method..*/
|
|
crv = sftk_InitCBCMac(hSession, pMechanism, hKey, CKA_VERIFY, SFTK_VERIFY);
|
|
if (crv != CKR_FUNCTION_NOT_SUPPORTED)
|
|
return crv;
|
|
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
crv = sftk_InitGeneric(session, &context, SFTK_VERIFY, &key, hKey, &key_type,
|
|
CKO_PUBLIC_KEY, CKA_VERIFY);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
context->multi = PR_FALSE;
|
|
|
|
#define INIT_RSA_VFY_MECH(mmm) \
|
|
case CKM_##mmm##_RSA_PKCS: \
|
|
context->multi = PR_TRUE; \
|
|
crv = sftk_doSub##mmm(context); \
|
|
if (crv != CKR_OK) \
|
|
break; \
|
|
context->verify = (SFTKVerify)sftk_hashCheckSign; \
|
|
info = PORT_New(SFTKHashVerifyInfo); \
|
|
if (info == NULL) { \
|
|
crv = CKR_HOST_MEMORY; \
|
|
break; \
|
|
} \
|
|
info->hashOid = SEC_OID_##mmm; \
|
|
goto finish_rsa;
|
|
|
|
switch (pMechanism->mechanism) {
|
|
INIT_RSA_VFY_MECH(MD5)
|
|
INIT_RSA_VFY_MECH(MD2)
|
|
INIT_RSA_VFY_MECH(SHA1)
|
|
INIT_RSA_VFY_MECH(SHA224)
|
|
INIT_RSA_VFY_MECH(SHA256)
|
|
INIT_RSA_VFY_MECH(SHA384)
|
|
INIT_RSA_VFY_MECH(SHA512)
|
|
|
|
case CKM_RSA_PKCS:
|
|
context->verify = (SFTKVerify)sftk_RSACheckSign;
|
|
goto finish_rsa;
|
|
case CKM_RSA_X_509:
|
|
context->verify = (SFTKVerify)sftk_RSACheckSignRaw;
|
|
finish_rsa:
|
|
if (key_type != CKK_RSA) {
|
|
if (info)
|
|
PORT_Free(info);
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
context->rsa = PR_TRUE;
|
|
pubKey = sftk_GetPubKey(key, CKK_RSA, &crv);
|
|
if (pubKey == NULL) {
|
|
if (info)
|
|
PORT_Free(info);
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
if (info) {
|
|
info->key = pubKey;
|
|
context->cipherInfo = info;
|
|
context->destroy = sftk_Space;
|
|
} else {
|
|
context->cipherInfo = pubKey;
|
|
context->destroy = sftk_Null;
|
|
}
|
|
break;
|
|
case CKM_RSA_PKCS_PSS:
|
|
if (key_type != CKK_RSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
context->rsa = PR_TRUE;
|
|
if (pMechanism->ulParameterLen != sizeof(CK_RSA_PKCS_PSS_PARAMS) ||
|
|
!sftk_ValidatePssParams((const CK_RSA_PKCS_PSS_PARAMS *)pMechanism->pParameter)) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
info = PORT_New(SFTKHashVerifyInfo);
|
|
if (info == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
info->params = pMechanism->pParameter;
|
|
info->key = sftk_GetPubKey(key, CKK_RSA, &crv);
|
|
if (info->key == NULL) {
|
|
PORT_Free(info);
|
|
break;
|
|
}
|
|
context->cipherInfo = info;
|
|
context->destroy = (SFTKDestroy)sftk_Space;
|
|
context->verify = (SFTKVerify)sftk_RSACheckSignPSS;
|
|
break;
|
|
case CKM_DSA_SHA1:
|
|
context->multi = PR_TRUE;
|
|
crv = sftk_doSubSHA1(context);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
/* fall through */
|
|
case CKM_DSA:
|
|
if (key_type != CKK_DSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
pubKey = sftk_GetPubKey(key, CKK_DSA, &crv);
|
|
if (pubKey == NULL) {
|
|
break;
|
|
}
|
|
context->cipherInfo = pubKey;
|
|
context->verify = (SFTKVerify)nsc_DSA_Verify_Stub;
|
|
context->destroy = sftk_Null;
|
|
break;
|
|
case CKM_ECDSA_SHA1:
|
|
context->multi = PR_TRUE;
|
|
crv = sftk_doSubSHA1(context);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
/* fall through */
|
|
case CKM_ECDSA:
|
|
if (key_type != CKK_EC) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
pubKey = sftk_GetPubKey(key, CKK_EC, &crv);
|
|
if (pubKey == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
context->cipherInfo = pubKey;
|
|
context->verify = (SFTKVerify)nsc_ECDSAVerifyStub;
|
|
context->destroy = sftk_Null;
|
|
break;
|
|
|
|
INIT_HMAC_MECH(MD2)
|
|
INIT_HMAC_MECH(MD5)
|
|
INIT_HMAC_MECH(SHA224)
|
|
INIT_HMAC_MECH(SHA256)
|
|
INIT_HMAC_MECH(SHA384)
|
|
INIT_HMAC_MECH(SHA512)
|
|
|
|
case CKM_SHA_1_HMAC_GENERAL:
|
|
PORT_Assert(pMechanism->pParameter);
|
|
if (!pMechanism->pParameter) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_doHMACInit(context, HASH_AlgSHA1, key,
|
|
*(CK_ULONG *)pMechanism->pParameter);
|
|
break;
|
|
case CKM_SHA_1_HMAC:
|
|
crv = sftk_doHMACInit(context, HASH_AlgSHA1, key, SHA1_LENGTH);
|
|
break;
|
|
|
|
case CKM_SSL3_MD5_MAC:
|
|
PORT_Assert(pMechanism->pParameter);
|
|
if (!pMechanism->pParameter) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_doSSLMACInit(context, SEC_OID_MD5, key,
|
|
*(CK_ULONG *)pMechanism->pParameter);
|
|
break;
|
|
case CKM_SSL3_SHA1_MAC:
|
|
PORT_Assert(pMechanism->pParameter);
|
|
if (!pMechanism->pParameter) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_doSSLMACInit(context, SEC_OID_SHA1, key,
|
|
*(CK_ULONG *)pMechanism->pParameter);
|
|
break;
|
|
case CKM_TLS_PRF_GENERAL:
|
|
crv = sftk_TLSPRFInit(context, key, key_type, HASH_AlgNULL, 0);
|
|
break;
|
|
case CKM_NSS_TLS_PRF_GENERAL_SHA256:
|
|
crv = sftk_TLSPRFInit(context, key, key_type, HASH_AlgSHA256, 0);
|
|
break;
|
|
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
if (info)
|
|
PORT_Free(info);
|
|
sftk_FreeContext(context);
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
sftk_SetContextByType(session, SFTK_VERIFY, context);
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* NSC_Verify verifies a signature in a single-part operation,
|
|
* where the signature is an appendix to the data,
|
|
* and plaintext cannot be recovered from the signature */
|
|
CK_RV
|
|
NSC_Verify(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData,
|
|
CK_ULONG ulDataLen, CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_VERIFY, PR_FALSE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
/* multi part Verifying are completely implemented by VerifyUpdate and
|
|
* VerifyFinal */
|
|
if (context->multi) {
|
|
/* VerifyFinal can't follow failed VerifyUpdate */
|
|
if (CKR_OK == (crv = NSC_VerifyUpdate(hSession, pData, ulDataLen)))
|
|
crv = NSC_VerifyFinal(hSession, pSignature, ulSignatureLen);
|
|
} else {
|
|
if (SECSuccess != (*context->verify)(context->cipherInfo, pSignature,
|
|
ulSignatureLen, pData, ulDataLen))
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
|
|
sftk_TerminateOp(session, SFTK_VERIFY, context);
|
|
}
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_VerifyUpdate continues a multiple-part verification operation,
|
|
* where the signature is an appendix to the data,
|
|
* and plaintext cannot be recovered from the signature
|
|
*
|
|
* A call which results in an error terminates the operation [PKCS#11,v2.11]
|
|
*/
|
|
CK_RV
|
|
NSC_VerifyUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
|
|
CK_ULONG ulPartLen)
|
|
{
|
|
CHECK_FORK();
|
|
return sftk_MACUpdate(hSession, pPart, ulPartLen, SFTK_VERIFY);
|
|
}
|
|
|
|
/* NSC_VerifyFinal finishes a multiple-part verification operation,
|
|
* checking the signature. */
|
|
CK_RV
|
|
NSC_VerifyFinal(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
if (!pSignature)
|
|
return CKR_ARGUMENTS_BAD;
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_VERIFY, PR_TRUE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
if (context->hashInfo) {
|
|
unsigned int digestLen;
|
|
unsigned char tmpbuf[SFTK_MAX_MAC_LENGTH];
|
|
|
|
(*context->end)(context->hashInfo, tmpbuf, &digestLen, sizeof(tmpbuf));
|
|
if (SECSuccess != (context->verify)(context->cipherInfo, pSignature,
|
|
ulSignatureLen, tmpbuf, digestLen))
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
} else if (ulSignatureLen != context->macSize) {
|
|
/* must be block cipher MACing */
|
|
crv = CKR_SIGNATURE_LEN_RANGE;
|
|
} else if (CKR_OK == (crv = sftk_MACFinal(context))) {
|
|
if (PORT_Memcmp(pSignature, context->macBuf, ulSignatureLen))
|
|
crv = CKR_SIGNATURE_INVALID;
|
|
}
|
|
|
|
sftk_TerminateOp(session, SFTK_VERIFY, context);
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
************** Crypto Functions: Verify Recover ************************
|
|
*/
|
|
static SECStatus
|
|
sftk_RSACheckSignRecover(NSSLOWKEYPublicKey *key, unsigned char *data,
|
|
unsigned int *dataLen, unsigned int maxDataLen,
|
|
const unsigned char *sig, unsigned int sigLen)
|
|
{
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
return RSA_CheckSignRecover(&key->u.rsa, data, dataLen, maxDataLen,
|
|
sig, sigLen);
|
|
}
|
|
|
|
static SECStatus
|
|
sftk_RSACheckSignRecoverRaw(NSSLOWKEYPublicKey *key, unsigned char *data,
|
|
unsigned int *dataLen, unsigned int maxDataLen,
|
|
const unsigned char *sig, unsigned int sigLen)
|
|
{
|
|
PORT_Assert(key->keyType == NSSLOWKEYRSAKey);
|
|
if (key->keyType != NSSLOWKEYRSAKey) {
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
return SECFailure;
|
|
}
|
|
|
|
return RSA_CheckSignRecoverRaw(&key->u.rsa, data, dataLen, maxDataLen,
|
|
sig, sigLen);
|
|
}
|
|
|
|
/* NSC_VerifyRecoverInit initializes a signature verification operation,
|
|
* where the data is recovered from the signature.
|
|
* E.g. Decryption with the user's public key */
|
|
CK_RV
|
|
NSC_VerifyRecoverInit(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKObject *key;
|
|
SFTKSessionContext *context;
|
|
CK_KEY_TYPE key_type;
|
|
CK_RV crv = CKR_OK;
|
|
NSSLOWKEYPublicKey *pubKey;
|
|
|
|
CHECK_FORK();
|
|
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
crv = sftk_InitGeneric(session, &context, SFTK_VERIFY_RECOVER,
|
|
&key, hKey, &key_type, CKO_PUBLIC_KEY, CKA_VERIFY_RECOVER);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
|
|
context->multi = PR_TRUE;
|
|
|
|
switch (pMechanism->mechanism) {
|
|
case CKM_RSA_PKCS:
|
|
case CKM_RSA_X_509:
|
|
if (key_type != CKK_RSA) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
context->multi = PR_FALSE;
|
|
context->rsa = PR_TRUE;
|
|
pubKey = sftk_GetPubKey(key, CKK_RSA, &crv);
|
|
if (pubKey == NULL) {
|
|
break;
|
|
}
|
|
context->cipherInfo = pubKey;
|
|
context->update = (SFTKCipher)(pMechanism->mechanism == CKM_RSA_X_509
|
|
? sftk_RSACheckSignRecoverRaw
|
|
: sftk_RSACheckSignRecover);
|
|
context->destroy = sftk_Null;
|
|
break;
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(context);
|
|
sftk_FreeSession(session);
|
|
return crv;
|
|
}
|
|
sftk_SetContextByType(session, SFTK_VERIFY_RECOVER, context);
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* NSC_VerifyRecover verifies a signature in a single-part operation,
|
|
* where the data is recovered from the signature.
|
|
* E.g. Decryption with the user's public key */
|
|
CK_RV
|
|
NSC_VerifyRecover(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen,
|
|
CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSessionContext *context;
|
|
unsigned int outlen;
|
|
unsigned int maxoutlen = *pulDataLen;
|
|
CK_RV crv;
|
|
SECStatus rv;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_VERIFY_RECOVER,
|
|
PR_FALSE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
if (pData == NULL) {
|
|
/* to return the actual size, we need to do the decrypt, just return
|
|
* the max size, which is the size of the input signature. */
|
|
*pulDataLen = ulSignatureLen;
|
|
rv = SECSuccess;
|
|
goto finish;
|
|
}
|
|
|
|
rv = (*context->update)(context->cipherInfo, pData, &outlen, maxoutlen,
|
|
pSignature, ulSignatureLen);
|
|
*pulDataLen = (CK_ULONG)outlen;
|
|
|
|
sftk_TerminateOp(session, SFTK_VERIFY_RECOVER, context);
|
|
finish:
|
|
sftk_FreeSession(session);
|
|
return (rv == SECSuccess) ? CKR_OK : sftk_MapVerifyError(PORT_GetError());
|
|
}
|
|
|
|
/*
|
|
**************************** Random Functions: ************************
|
|
*/
|
|
|
|
/* NSC_SeedRandom mixes additional seed material into the token's random number
|
|
* generator. */
|
|
CK_RV
|
|
NSC_SeedRandom(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pSeed,
|
|
CK_ULONG ulSeedLen)
|
|
{
|
|
SECStatus rv;
|
|
|
|
CHECK_FORK();
|
|
|
|
rv = RNG_RandomUpdate(pSeed, ulSeedLen);
|
|
return (rv == SECSuccess) ? CKR_OK : sftk_MapCryptError(PORT_GetError());
|
|
}
|
|
|
|
/* NSC_GenerateRandom generates random data. */
|
|
CK_RV
|
|
NSC_GenerateRandom(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pRandomData, CK_ULONG ulRandomLen)
|
|
{
|
|
SECStatus rv;
|
|
|
|
CHECK_FORK();
|
|
|
|
rv = RNG_GenerateGlobalRandomBytes(pRandomData, ulRandomLen);
|
|
/*
|
|
* This may fail with SEC_ERROR_NEED_RANDOM, which means the RNG isn't
|
|
* seeded with enough entropy.
|
|
*/
|
|
return (rv == SECSuccess) ? CKR_OK : sftk_MapCryptError(PORT_GetError());
|
|
}
|
|
|
|
/*
|
|
**************************** Key Functions: ************************
|
|
*/
|
|
|
|
/*
|
|
* generate a password based encryption key. This code uses
|
|
* PKCS5 to do the work.
|
|
*/
|
|
static CK_RV
|
|
nsc_pbe_key_gen(NSSPKCS5PBEParameter *pkcs5_pbe, CK_MECHANISM_PTR pMechanism,
|
|
void *buf, CK_ULONG *key_length, PRBool faulty3DES)
|
|
{
|
|
SECItem *pbe_key = NULL, iv, pwitem;
|
|
CK_PBE_PARAMS *pbe_params = NULL;
|
|
CK_PKCS5_PBKD2_PARAMS *pbkd2_params = NULL;
|
|
|
|
*key_length = 0;
|
|
iv.data = NULL;
|
|
iv.len = 0;
|
|
|
|
if (pMechanism->mechanism == CKM_PKCS5_PBKD2) {
|
|
pbkd2_params = (CK_PKCS5_PBKD2_PARAMS *)pMechanism->pParameter;
|
|
pwitem.data = (unsigned char *)pbkd2_params->pPassword;
|
|
/* was this a typo in the PKCS #11 spec? */
|
|
pwitem.len = *pbkd2_params->ulPasswordLen;
|
|
} else {
|
|
pbe_params = (CK_PBE_PARAMS *)pMechanism->pParameter;
|
|
pwitem.data = (unsigned char *)pbe_params->pPassword;
|
|
pwitem.len = pbe_params->ulPasswordLen;
|
|
}
|
|
pbe_key = nsspkcs5_ComputeKeyAndIV(pkcs5_pbe, &pwitem, &iv, faulty3DES);
|
|
if (pbe_key == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
PORT_Memcpy(buf, pbe_key->data, pbe_key->len);
|
|
*key_length = pbe_key->len;
|
|
SECITEM_ZfreeItem(pbe_key, PR_TRUE);
|
|
pbe_key = NULL;
|
|
|
|
if (iv.data) {
|
|
if (pbe_params && pbe_params->pInitVector != NULL) {
|
|
PORT_Memcpy(pbe_params->pInitVector, iv.data, iv.len);
|
|
}
|
|
PORT_Free(iv.data);
|
|
}
|
|
|
|
return CKR_OK;
|
|
}
|
|
|
|
/*
|
|
* this is coded for "full" support. These selections will be limitted to
|
|
* the official subset by freebl.
|
|
*/
|
|
static unsigned int
|
|
sftk_GetSubPrimeFromPrime(unsigned int primeBits)
|
|
{
|
|
if (primeBits <= 1024) {
|
|
return 160;
|
|
} else if (primeBits <= 2048) {
|
|
return 224;
|
|
} else if (primeBits <= 3072) {
|
|
return 256;
|
|
} else if (primeBits <= 7680) {
|
|
return 384;
|
|
} else {
|
|
return 512;
|
|
}
|
|
}
|
|
|
|
static CK_RV
|
|
nsc_parameter_gen(CK_KEY_TYPE key_type, SFTKObject *key)
|
|
{
|
|
SFTKAttribute *attribute;
|
|
CK_ULONG counter;
|
|
unsigned int seedBits = 0;
|
|
unsigned int subprimeBits = 0;
|
|
unsigned int primeBits;
|
|
unsigned int j = 8; /* default to 1024 bits */
|
|
CK_RV crv = CKR_OK;
|
|
PQGParams *params = NULL;
|
|
PQGVerify *vfy = NULL;
|
|
SECStatus rv;
|
|
|
|
attribute = sftk_FindAttribute(key, CKA_PRIME_BITS);
|
|
if (attribute == NULL) {
|
|
attribute = sftk_FindAttribute(key, CKA_PRIME);
|
|
if (attribute == NULL) {
|
|
return CKR_TEMPLATE_INCOMPLETE;
|
|
} else {
|
|
primeBits = attribute->attrib.ulValueLen;
|
|
sftk_FreeAttribute(attribute);
|
|
}
|
|
} else {
|
|
primeBits = (unsigned int)*(CK_ULONG *)attribute->attrib.pValue;
|
|
sftk_FreeAttribute(attribute);
|
|
}
|
|
if (primeBits < 1024) {
|
|
j = PQG_PBITS_TO_INDEX(primeBits);
|
|
if (j == (unsigned int)-1) {
|
|
return CKR_ATTRIBUTE_VALUE_INVALID;
|
|
}
|
|
}
|
|
|
|
attribute = sftk_FindAttribute(key, CKA_NSS_PQG_SEED_BITS);
|
|
if (attribute != NULL) {
|
|
seedBits = (unsigned int)*(CK_ULONG *)attribute->attrib.pValue;
|
|
sftk_FreeAttribute(attribute);
|
|
}
|
|
|
|
attribute = sftk_FindAttribute(key, CKA_SUBPRIME_BITS);
|
|
if (attribute != NULL) {
|
|
subprimeBits = (unsigned int)*(CK_ULONG *)attribute->attrib.pValue;
|
|
sftk_FreeAttribute(attribute);
|
|
}
|
|
|
|
/* if P and Q are supplied, we want to generate a new G */
|
|
attribute = sftk_FindAttribute(key, CKA_PRIME);
|
|
if (attribute != NULL) {
|
|
PLArenaPool *arena;
|
|
|
|
sftk_FreeAttribute(attribute);
|
|
arena = PORT_NewArena(1024);
|
|
if (arena == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
params = PORT_ArenaAlloc(arena, sizeof(*params));
|
|
if (params == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
params->arena = arena;
|
|
crv = sftk_Attribute2SSecItem(arena, ¶ms->prime, key, CKA_PRIME);
|
|
if (crv != CKR_OK) {
|
|
goto loser;
|
|
}
|
|
crv = sftk_Attribute2SSecItem(arena, ¶ms->subPrime,
|
|
key, CKA_SUBPRIME);
|
|
if (crv != CKR_OK) {
|
|
goto loser;
|
|
}
|
|
|
|
arena = PORT_NewArena(1024);
|
|
if (arena == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
vfy = PORT_ArenaAlloc(arena, sizeof(*vfy));
|
|
if (vfy == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
vfy->arena = arena;
|
|
crv = sftk_Attribute2SSecItem(arena, &vfy->seed, key, CKA_NSS_PQG_SEED);
|
|
if (crv != CKR_OK) {
|
|
goto loser;
|
|
}
|
|
crv = sftk_Attribute2SSecItem(arena, &vfy->h, key, CKA_NSS_PQG_H);
|
|
if (crv != CKR_OK) {
|
|
goto loser;
|
|
}
|
|
sftk_DeleteAttributeType(key, CKA_PRIME);
|
|
sftk_DeleteAttributeType(key, CKA_SUBPRIME);
|
|
sftk_DeleteAttributeType(key, CKA_NSS_PQG_SEED);
|
|
sftk_DeleteAttributeType(key, CKA_NSS_PQG_H);
|
|
}
|
|
|
|
sftk_DeleteAttributeType(key, CKA_PRIME_BITS);
|
|
sftk_DeleteAttributeType(key, CKA_SUBPRIME_BITS);
|
|
sftk_DeleteAttributeType(key, CKA_NSS_PQG_SEED_BITS);
|
|
|
|
/* use the old PQG interface if we have old input data */
|
|
if ((primeBits < 1024) || ((primeBits == 1024) && (subprimeBits == 0))) {
|
|
if (seedBits == 0) {
|
|
rv = PQG_ParamGen(j, ¶ms, &vfy);
|
|
} else {
|
|
rv = PQG_ParamGenSeedLen(j, seedBits / 8, ¶ms, &vfy);
|
|
}
|
|
} else {
|
|
if (subprimeBits == 0) {
|
|
subprimeBits = sftk_GetSubPrimeFromPrime(primeBits);
|
|
}
|
|
if (seedBits == 0) {
|
|
seedBits = primeBits;
|
|
}
|
|
rv = PQG_ParamGenV2(primeBits, subprimeBits, seedBits / 8, ¶ms, &vfy);
|
|
}
|
|
|
|
if (rv != SECSuccess) {
|
|
if (PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
return sftk_MapCryptError(PORT_GetError());
|
|
}
|
|
crv = sftk_AddAttributeType(key, CKA_PRIME,
|
|
params->prime.data, params->prime.len);
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_AddAttributeType(key, CKA_SUBPRIME,
|
|
params->subPrime.data, params->subPrime.len);
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_AddAttributeType(key, CKA_BASE,
|
|
params->base.data, params->base.len);
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
counter = vfy->counter;
|
|
crv = sftk_AddAttributeType(key, CKA_NSS_PQG_COUNTER,
|
|
&counter, sizeof(counter));
|
|
crv = sftk_AddAttributeType(key, CKA_NSS_PQG_SEED,
|
|
vfy->seed.data, vfy->seed.len);
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_AddAttributeType(key, CKA_NSS_PQG_H,
|
|
vfy->h.data, vfy->h.len);
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
|
|
loser:
|
|
if (params) {
|
|
PQG_DestroyParams(params);
|
|
}
|
|
|
|
if (vfy) {
|
|
PQG_DestroyVerify(vfy);
|
|
}
|
|
return crv;
|
|
}
|
|
|
|
static CK_RV
|
|
nsc_SetupBulkKeyGen(CK_MECHANISM_TYPE mechanism, CK_KEY_TYPE *key_type,
|
|
CK_ULONG *key_length)
|
|
{
|
|
CK_RV crv = CKR_OK;
|
|
|
|
switch (mechanism) {
|
|
case CKM_RC2_KEY_GEN:
|
|
*key_type = CKK_RC2;
|
|
if (*key_length == 0)
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
#if NSS_SOFTOKEN_DOES_RC5
|
|
case CKM_RC5_KEY_GEN:
|
|
*key_type = CKK_RC5;
|
|
if (*key_length == 0)
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
#endif
|
|
case CKM_RC4_KEY_GEN:
|
|
*key_type = CKK_RC4;
|
|
if (*key_length == 0)
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
case CKM_GENERIC_SECRET_KEY_GEN:
|
|
*key_type = CKK_GENERIC_SECRET;
|
|
if (*key_length == 0)
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
case CKM_CDMF_KEY_GEN:
|
|
*key_type = CKK_CDMF;
|
|
*key_length = 8;
|
|
break;
|
|
case CKM_DES_KEY_GEN:
|
|
*key_type = CKK_DES;
|
|
*key_length = 8;
|
|
break;
|
|
case CKM_DES2_KEY_GEN:
|
|
*key_type = CKK_DES2;
|
|
*key_length = 16;
|
|
break;
|
|
case CKM_DES3_KEY_GEN:
|
|
*key_type = CKK_DES3;
|
|
*key_length = 24;
|
|
break;
|
|
case CKM_SEED_KEY_GEN:
|
|
*key_type = CKK_SEED;
|
|
*key_length = 16;
|
|
break;
|
|
case CKM_CAMELLIA_KEY_GEN:
|
|
*key_type = CKK_CAMELLIA;
|
|
if (*key_length == 0)
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
case CKM_AES_KEY_GEN:
|
|
*key_type = CKK_AES;
|
|
if (*key_length == 0)
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
case CKM_NSS_CHACHA20_KEY_GEN:
|
|
*key_type = CKK_NSS_CHACHA20;
|
|
if (*key_length == 0)
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
default:
|
|
PORT_Assert(0);
|
|
crv = CKR_MECHANISM_INVALID;
|
|
break;
|
|
}
|
|
|
|
return crv;
|
|
}
|
|
|
|
CK_RV
|
|
nsc_SetupHMACKeyGen(CK_MECHANISM_PTR pMechanism, NSSPKCS5PBEParameter **pbe)
|
|
{
|
|
SECItem salt;
|
|
CK_PBE_PARAMS *pbe_params = NULL;
|
|
NSSPKCS5PBEParameter *params;
|
|
PLArenaPool *arena = NULL;
|
|
SECStatus rv;
|
|
|
|
*pbe = NULL;
|
|
|
|
arena = PORT_NewArena(SEC_ASN1_DEFAULT_ARENA_SIZE);
|
|
if (arena == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
params = (NSSPKCS5PBEParameter *)PORT_ArenaZAlloc(arena,
|
|
sizeof(NSSPKCS5PBEParameter));
|
|
if (params == NULL) {
|
|
PORT_FreeArena(arena, PR_TRUE);
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
params->poolp = arena;
|
|
params->ivLen = 0;
|
|
params->pbeType = NSSPKCS5_PKCS12_V2;
|
|
params->hashType = HASH_AlgSHA1;
|
|
params->encAlg = SEC_OID_SHA1; /* any invalid value */
|
|
params->is2KeyDES = PR_FALSE;
|
|
params->keyID = pbeBitGenIntegrityKey;
|
|
pbe_params = (CK_PBE_PARAMS *)pMechanism->pParameter;
|
|
params->iter = pbe_params->ulIteration;
|
|
|
|
salt.data = (unsigned char *)pbe_params->pSalt;
|
|
salt.len = (unsigned int)pbe_params->ulSaltLen;
|
|
salt.type = siBuffer;
|
|
rv = SECITEM_CopyItem(arena, ¶ms->salt, &salt);
|
|
if (rv != SECSuccess) {
|
|
PORT_FreeArena(arena, PR_TRUE);
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
switch (pMechanism->mechanism) {
|
|
case CKM_NETSCAPE_PBE_SHA1_HMAC_KEY_GEN:
|
|
case CKM_PBA_SHA1_WITH_SHA1_HMAC:
|
|
params->hashType = HASH_AlgSHA1;
|
|
params->keyLen = 20;
|
|
break;
|
|
case CKM_NETSCAPE_PBE_MD5_HMAC_KEY_GEN:
|
|
params->hashType = HASH_AlgMD5;
|
|
params->keyLen = 16;
|
|
break;
|
|
case CKM_NETSCAPE_PBE_MD2_HMAC_KEY_GEN:
|
|
params->hashType = HASH_AlgMD2;
|
|
params->keyLen = 16;
|
|
break;
|
|
case CKM_NSS_PKCS12_PBE_SHA224_HMAC_KEY_GEN:
|
|
params->hashType = HASH_AlgSHA224;
|
|
params->keyLen = 28;
|
|
break;
|
|
case CKM_NSS_PKCS12_PBE_SHA256_HMAC_KEY_GEN:
|
|
params->hashType = HASH_AlgSHA256;
|
|
params->keyLen = 32;
|
|
break;
|
|
case CKM_NSS_PKCS12_PBE_SHA384_HMAC_KEY_GEN:
|
|
params->hashType = HASH_AlgSHA384;
|
|
params->keyLen = 48;
|
|
break;
|
|
case CKM_NSS_PKCS12_PBE_SHA512_HMAC_KEY_GEN:
|
|
params->hashType = HASH_AlgSHA512;
|
|
params->keyLen = 64;
|
|
break;
|
|
default:
|
|
PORT_FreeArena(arena, PR_TRUE);
|
|
return CKR_MECHANISM_INVALID;
|
|
}
|
|
*pbe = params;
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* maybe this should be table driven? */
|
|
static CK_RV
|
|
nsc_SetupPBEKeyGen(CK_MECHANISM_PTR pMechanism, NSSPKCS5PBEParameter **pbe,
|
|
CK_KEY_TYPE *key_type, CK_ULONG *key_length)
|
|
{
|
|
CK_RV crv = CKR_OK;
|
|
SECOidData *oid;
|
|
CK_PBE_PARAMS *pbe_params = NULL;
|
|
NSSPKCS5PBEParameter *params = NULL;
|
|
HASH_HashType hashType = HASH_AlgSHA1;
|
|
CK_PKCS5_PBKD2_PARAMS *pbkd2_params = NULL;
|
|
SECItem salt;
|
|
CK_ULONG iteration = 0;
|
|
|
|
*pbe = NULL;
|
|
|
|
oid = SECOID_FindOIDByMechanism(pMechanism->mechanism);
|
|
if (oid == NULL) {
|
|
return CKR_MECHANISM_INVALID;
|
|
}
|
|
|
|
if (pMechanism->mechanism == CKM_PKCS5_PBKD2) {
|
|
pbkd2_params = (CK_PKCS5_PBKD2_PARAMS *)pMechanism->pParameter;
|
|
if (pbkd2_params == NULL) {
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
switch (pbkd2_params->prf) {
|
|
case CKP_PKCS5_PBKD2_HMAC_SHA1:
|
|
hashType = HASH_AlgSHA1;
|
|
break;
|
|
case CKP_PKCS5_PBKD2_HMAC_SHA224:
|
|
hashType = HASH_AlgSHA224;
|
|
break;
|
|
case CKP_PKCS5_PBKD2_HMAC_SHA256:
|
|
hashType = HASH_AlgSHA256;
|
|
break;
|
|
case CKP_PKCS5_PBKD2_HMAC_SHA384:
|
|
hashType = HASH_AlgSHA384;
|
|
break;
|
|
case CKP_PKCS5_PBKD2_HMAC_SHA512:
|
|
hashType = HASH_AlgSHA512;
|
|
break;
|
|
default:
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
if (pbkd2_params->saltSource != CKZ_SALT_SPECIFIED) {
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
salt.data = (unsigned char *)pbkd2_params->pSaltSourceData;
|
|
salt.len = (unsigned int)pbkd2_params->ulSaltSourceDataLen;
|
|
iteration = pbkd2_params->iterations;
|
|
} else {
|
|
pbe_params = (CK_PBE_PARAMS *)pMechanism->pParameter;
|
|
salt.data = (unsigned char *)pbe_params->pSalt;
|
|
salt.len = (unsigned int)pbe_params->ulSaltLen;
|
|
iteration = pbe_params->ulIteration;
|
|
}
|
|
params = nsspkcs5_NewParam(oid->offset, hashType, &salt, iteration);
|
|
if (params == NULL) {
|
|
return CKR_MECHANISM_INVALID;
|
|
}
|
|
|
|
switch (params->encAlg) {
|
|
case SEC_OID_DES_CBC:
|
|
*key_type = CKK_DES;
|
|
*key_length = params->keyLen;
|
|
break;
|
|
case SEC_OID_DES_EDE3_CBC:
|
|
*key_type = params->is2KeyDES ? CKK_DES2 : CKK_DES3;
|
|
*key_length = params->keyLen;
|
|
break;
|
|
case SEC_OID_RC2_CBC:
|
|
*key_type = CKK_RC2;
|
|
*key_length = params->keyLen;
|
|
break;
|
|
case SEC_OID_RC4:
|
|
*key_type = CKK_RC4;
|
|
*key_length = params->keyLen;
|
|
break;
|
|
case SEC_OID_PKCS5_PBKDF2:
|
|
/* key type must already be set */
|
|
if (*key_type == CKK_INVALID_KEY_TYPE) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
}
|
|
/* PBKDF2 needs to calculate the key length from the other parameters
|
|
*/
|
|
if (*key_length == 0) {
|
|
*key_length = sftk_MapKeySize(*key_type);
|
|
}
|
|
if (*key_length == 0) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
}
|
|
params->keyLen = *key_length;
|
|
break;
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
nsspkcs5_DestroyPBEParameter(params);
|
|
break;
|
|
}
|
|
if (crv == CKR_OK) {
|
|
*pbe = params;
|
|
}
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_GenerateKey generates a secret key, creating a new key object. */
|
|
CK_RV
|
|
NSC_GenerateKey(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount,
|
|
CK_OBJECT_HANDLE_PTR phKey)
|
|
{
|
|
SFTKObject *key;
|
|
SFTKSession *session;
|
|
PRBool checkWeak = PR_FALSE;
|
|
CK_ULONG key_length = 0;
|
|
CK_KEY_TYPE key_type = CKK_INVALID_KEY_TYPE;
|
|
CK_OBJECT_CLASS objclass = CKO_SECRET_KEY;
|
|
CK_RV crv = CKR_OK;
|
|
CK_BBOOL cktrue = CK_TRUE;
|
|
int i;
|
|
SFTKSlot *slot = sftk_SlotFromSessionHandle(hSession);
|
|
unsigned char buf[MAX_KEY_LEN];
|
|
enum { nsc_pbe,
|
|
nsc_ssl,
|
|
nsc_bulk,
|
|
nsc_param,
|
|
nsc_jpake } key_gen_type;
|
|
NSSPKCS5PBEParameter *pbe_param;
|
|
SSL3RSAPreMasterSecret *rsa_pms;
|
|
CK_VERSION *version;
|
|
/* in very old versions of NSS, there were implementation errors with key
|
|
* generation methods. We want to beable to read these, but not
|
|
* produce them any more. The affected algorithm was 3DES.
|
|
*/
|
|
PRBool faultyPBE3DES = PR_FALSE;
|
|
HASH_HashType hashType = HASH_AlgNULL;
|
|
|
|
CHECK_FORK();
|
|
|
|
if (!slot) {
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
/*
|
|
* now lets create an object to hang the attributes off of
|
|
*/
|
|
key = sftk_NewObject(slot); /* fill in the handle later */
|
|
if (key == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
/*
|
|
* load the template values into the object
|
|
*/
|
|
for (i = 0; i < (int)ulCount; i++) {
|
|
if (pTemplate[i].type == CKA_VALUE_LEN) {
|
|
key_length = *(CK_ULONG *)pTemplate[i].pValue;
|
|
continue;
|
|
}
|
|
/* some algorithms need keytype specified */
|
|
if (pTemplate[i].type == CKA_KEY_TYPE) {
|
|
key_type = *(CK_ULONG *)pTemplate[i].pValue;
|
|
continue;
|
|
}
|
|
|
|
crv = sftk_AddAttributeType(key, sftk_attr_expand(&pTemplate[i]));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
}
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
/* make sure we don't have any class, key_type, or value fields */
|
|
sftk_DeleteAttributeType(key, CKA_CLASS);
|
|
sftk_DeleteAttributeType(key, CKA_KEY_TYPE);
|
|
sftk_DeleteAttributeType(key, CKA_VALUE);
|
|
|
|
/* Now Set up the parameters to generate the key (based on mechanism) */
|
|
key_gen_type = nsc_bulk; /* bulk key by default */
|
|
switch (pMechanism->mechanism) {
|
|
case CKM_CDMF_KEY_GEN:
|
|
case CKM_DES_KEY_GEN:
|
|
case CKM_DES2_KEY_GEN:
|
|
case CKM_DES3_KEY_GEN:
|
|
checkWeak = PR_TRUE;
|
|
/* fall through */
|
|
case CKM_RC2_KEY_GEN:
|
|
case CKM_RC4_KEY_GEN:
|
|
case CKM_GENERIC_SECRET_KEY_GEN:
|
|
case CKM_SEED_KEY_GEN:
|
|
case CKM_CAMELLIA_KEY_GEN:
|
|
case CKM_AES_KEY_GEN:
|
|
case CKM_NSS_CHACHA20_KEY_GEN:
|
|
#if NSS_SOFTOKEN_DOES_RC5
|
|
case CKM_RC5_KEY_GEN:
|
|
#endif
|
|
crv = nsc_SetupBulkKeyGen(pMechanism->mechanism, &key_type, &key_length);
|
|
break;
|
|
case CKM_SSL3_PRE_MASTER_KEY_GEN:
|
|
key_type = CKK_GENERIC_SECRET;
|
|
key_length = 48;
|
|
key_gen_type = nsc_ssl;
|
|
break;
|
|
case CKM_PBA_SHA1_WITH_SHA1_HMAC:
|
|
case CKM_NETSCAPE_PBE_SHA1_HMAC_KEY_GEN:
|
|
case CKM_NETSCAPE_PBE_MD5_HMAC_KEY_GEN:
|
|
case CKM_NETSCAPE_PBE_MD2_HMAC_KEY_GEN:
|
|
case CKM_NSS_PKCS12_PBE_SHA224_HMAC_KEY_GEN:
|
|
case CKM_NSS_PKCS12_PBE_SHA256_HMAC_KEY_GEN:
|
|
case CKM_NSS_PKCS12_PBE_SHA384_HMAC_KEY_GEN:
|
|
case CKM_NSS_PKCS12_PBE_SHA512_HMAC_KEY_GEN:
|
|
key_gen_type = nsc_pbe;
|
|
key_type = CKK_GENERIC_SECRET;
|
|
crv = nsc_SetupHMACKeyGen(pMechanism, &pbe_param);
|
|
break;
|
|
case CKM_NETSCAPE_PBE_SHA1_FAULTY_3DES_CBC:
|
|
faultyPBE3DES = PR_TRUE;
|
|
/* fall through */
|
|
case CKM_NETSCAPE_PBE_SHA1_TRIPLE_DES_CBC:
|
|
case CKM_NETSCAPE_PBE_SHA1_40_BIT_RC2_CBC:
|
|
case CKM_NETSCAPE_PBE_SHA1_DES_CBC:
|
|
case CKM_NETSCAPE_PBE_SHA1_128_BIT_RC2_CBC:
|
|
case CKM_NETSCAPE_PBE_SHA1_40_BIT_RC4:
|
|
case CKM_NETSCAPE_PBE_SHA1_128_BIT_RC4:
|
|
case CKM_PBE_SHA1_DES3_EDE_CBC:
|
|
case CKM_PBE_SHA1_DES2_EDE_CBC:
|
|
case CKM_PBE_SHA1_RC2_128_CBC:
|
|
case CKM_PBE_SHA1_RC2_40_CBC:
|
|
case CKM_PBE_SHA1_RC4_128:
|
|
case CKM_PBE_SHA1_RC4_40:
|
|
case CKM_PBE_MD5_DES_CBC:
|
|
case CKM_PBE_MD2_DES_CBC:
|
|
case CKM_PKCS5_PBKD2:
|
|
key_gen_type = nsc_pbe;
|
|
crv = nsc_SetupPBEKeyGen(pMechanism, &pbe_param, &key_type, &key_length);
|
|
break;
|
|
case CKM_DSA_PARAMETER_GEN:
|
|
key_gen_type = nsc_param;
|
|
key_type = CKK_DSA;
|
|
objclass = CKO_KG_PARAMETERS;
|
|
crv = CKR_OK;
|
|
break;
|
|
case CKM_NSS_JPAKE_ROUND1_SHA1:
|
|
hashType = HASH_AlgSHA1;
|
|
goto jpake1;
|
|
case CKM_NSS_JPAKE_ROUND1_SHA256:
|
|
hashType = HASH_AlgSHA256;
|
|
goto jpake1;
|
|
case CKM_NSS_JPAKE_ROUND1_SHA384:
|
|
hashType = HASH_AlgSHA384;
|
|
goto jpake1;
|
|
case CKM_NSS_JPAKE_ROUND1_SHA512:
|
|
hashType = HASH_AlgSHA512;
|
|
goto jpake1;
|
|
jpake1:
|
|
key_gen_type = nsc_jpake;
|
|
key_type = CKK_NSS_JPAKE_ROUND1;
|
|
objclass = CKO_PRIVATE_KEY;
|
|
if (pMechanism->pParameter == NULL ||
|
|
pMechanism->ulParameterLen != sizeof(CK_NSS_JPAKERound1Params)) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
if (sftk_isTrue(key, CKA_TOKEN)) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
crv = CKR_OK;
|
|
break;
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
break;
|
|
}
|
|
|
|
/* make sure we aren't going to overflow the buffer */
|
|
if (sizeof(buf) < key_length) {
|
|
/* someone is getting pretty optimistic about how big their key can
|
|
* be... */
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
/* if there was no error,
|
|
* key_type *MUST* be set in the switch statement above */
|
|
PORT_Assert(key_type != CKK_INVALID_KEY_TYPE);
|
|
|
|
/*
|
|
* now to the actual key gen.
|
|
*/
|
|
switch (key_gen_type) {
|
|
case nsc_pbe:
|
|
crv = nsc_pbe_key_gen(pbe_param, pMechanism, buf, &key_length,
|
|
faultyPBE3DES);
|
|
nsspkcs5_DestroyPBEParameter(pbe_param);
|
|
break;
|
|
case nsc_ssl:
|
|
rsa_pms = (SSL3RSAPreMasterSecret *)buf;
|
|
version = (CK_VERSION *)pMechanism->pParameter;
|
|
rsa_pms->client_version[0] = version->major;
|
|
rsa_pms->client_version[1] = version->minor;
|
|
crv =
|
|
NSC_GenerateRandom(0, &rsa_pms->random[0], sizeof(rsa_pms->random));
|
|
break;
|
|
case nsc_bulk:
|
|
/* get the key, check for weak keys and repeat if found */
|
|
do {
|
|
crv = NSC_GenerateRandom(0, buf, key_length);
|
|
} while (crv == CKR_OK && checkWeak && sftk_IsWeakKey(buf, key_type));
|
|
break;
|
|
case nsc_param:
|
|
/* generate parameters */
|
|
*buf = 0;
|
|
crv = nsc_parameter_gen(key_type, key);
|
|
break;
|
|
case nsc_jpake:
|
|
crv = jpake_Round1(hashType,
|
|
(CK_NSS_JPAKERound1Params *)pMechanism->pParameter,
|
|
key);
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
/* Add the class, key_type, and value */
|
|
crv = sftk_AddAttributeType(key, CKA_CLASS, &objclass, sizeof(CK_OBJECT_CLASS));
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
crv = sftk_AddAttributeType(key, CKA_KEY_TYPE, &key_type, sizeof(CK_KEY_TYPE));
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
if (key_length != 0) {
|
|
crv = sftk_AddAttributeType(key, CKA_VALUE, buf, key_length);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
}
|
|
|
|
/* get the session */
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL) {
|
|
sftk_FreeObject(key);
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
|
|
/*
|
|
* handle the base object stuff
|
|
*/
|
|
crv = sftk_handleObject(key, session);
|
|
sftk_FreeSession(session);
|
|
if (crv == CKR_OK && sftk_isTrue(key, CKA_SENSITIVE)) {
|
|
crv = sftk_forceAttribute(key, CKA_ALWAYS_SENSITIVE, &cktrue, sizeof(CK_BBOOL));
|
|
}
|
|
if (crv == CKR_OK && !sftk_isTrue(key, CKA_EXTRACTABLE)) {
|
|
crv = sftk_forceAttribute(key, CKA_NEVER_EXTRACTABLE, &cktrue, sizeof(CK_BBOOL));
|
|
}
|
|
if (crv == CKR_OK) {
|
|
*phKey = key->handle;
|
|
}
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
#define PAIRWISE_DIGEST_LENGTH SHA1_LENGTH /* 160-bits */
|
|
#define PAIRWISE_MESSAGE_LENGTH 20 /* 160-bits */
|
|
|
|
/*
|
|
* FIPS 140-2 pairwise consistency check utilized to validate key pair.
|
|
*
|
|
* This function returns
|
|
* CKR_OK if pairwise consistency check passed
|
|
* CKR_GENERAL_ERROR if pairwise consistency check failed
|
|
* other error codes if paiswise consistency check could not be
|
|
* performed, for example, CKR_HOST_MEMORY.
|
|
*/
|
|
static CK_RV
|
|
sftk_PairwiseConsistencyCheck(CK_SESSION_HANDLE hSession,
|
|
SFTKObject *publicKey, SFTKObject *privateKey, CK_KEY_TYPE keyType)
|
|
{
|
|
/*
|
|
* Key type Mechanism type
|
|
* --------------------------------
|
|
* For encrypt/decrypt: CKK_RSA => CKM_RSA_PKCS
|
|
* others => CKM_INVALID_MECHANISM
|
|
*
|
|
* For sign/verify: CKK_RSA => CKM_RSA_PKCS
|
|
* CKK_DSA => CKM_DSA
|
|
* CKK_EC => CKM_ECDSA
|
|
* others => CKM_INVALID_MECHANISM
|
|
*
|
|
* None of these mechanisms has a parameter.
|
|
*/
|
|
CK_MECHANISM mech = { 0, NULL, 0 };
|
|
|
|
CK_ULONG modulusLen = 0;
|
|
CK_ULONG subPrimeLen = 0;
|
|
PRBool isEncryptable = PR_FALSE;
|
|
PRBool canSignVerify = PR_FALSE;
|
|
PRBool isDerivable = PR_FALSE;
|
|
CK_RV crv;
|
|
|
|
/* Variables used for Encrypt/Decrypt functions. */
|
|
unsigned char *known_message = (unsigned char *)"Known Crypto Message";
|
|
unsigned char plaintext[PAIRWISE_MESSAGE_LENGTH];
|
|
CK_ULONG bytes_decrypted;
|
|
unsigned char *ciphertext;
|
|
unsigned char *text_compared;
|
|
CK_ULONG bytes_encrypted;
|
|
CK_ULONG bytes_compared;
|
|
CK_ULONG pairwise_digest_length = PAIRWISE_DIGEST_LENGTH;
|
|
|
|
/* Variables used for Signature/Verification functions. */
|
|
/* Must be at least 256 bits for DSA2 digest */
|
|
unsigned char *known_digest = (unsigned char *)"Mozilla Rules the World through NSS!";
|
|
unsigned char *signature;
|
|
CK_ULONG signature_length;
|
|
|
|
if (keyType == CKK_RSA) {
|
|
SFTKAttribute *attribute;
|
|
|
|
/* Get modulus length of private key. */
|
|
attribute = sftk_FindAttribute(privateKey, CKA_MODULUS);
|
|
if (attribute == NULL) {
|
|
return CKR_DEVICE_ERROR;
|
|
}
|
|
modulusLen = attribute->attrib.ulValueLen;
|
|
if (*(unsigned char *)attribute->attrib.pValue == 0) {
|
|
modulusLen--;
|
|
}
|
|
sftk_FreeAttribute(attribute);
|
|
} else if (keyType == CKK_DSA) {
|
|
SFTKAttribute *attribute;
|
|
|
|
/* Get subprime length of private key. */
|
|
attribute = sftk_FindAttribute(privateKey, CKA_SUBPRIME);
|
|
if (attribute == NULL) {
|
|
return CKR_DEVICE_ERROR;
|
|
}
|
|
subPrimeLen = attribute->attrib.ulValueLen;
|
|
if (subPrimeLen > 1 && *(unsigned char *)attribute->attrib.pValue == 0) {
|
|
subPrimeLen--;
|
|
}
|
|
sftk_FreeAttribute(attribute);
|
|
}
|
|
|
|
/**************************************************/
|
|
/* Pairwise Consistency Check of Encrypt/Decrypt. */
|
|
/**************************************************/
|
|
|
|
isEncryptable = sftk_isTrue(privateKey, CKA_DECRYPT);
|
|
|
|
/*
|
|
* If the decryption attribute is set, attempt to encrypt
|
|
* with the public key and decrypt with the private key.
|
|
*/
|
|
if (isEncryptable) {
|
|
if (keyType != CKK_RSA) {
|
|
return CKR_DEVICE_ERROR;
|
|
}
|
|
bytes_encrypted = modulusLen;
|
|
mech.mechanism = CKM_RSA_PKCS;
|
|
|
|
/* Allocate space for ciphertext. */
|
|
ciphertext = (unsigned char *)PORT_ZAlloc(bytes_encrypted);
|
|
if (ciphertext == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
/* Prepare for encryption using the public key. */
|
|
crv = NSC_EncryptInit(hSession, &mech, publicKey->handle);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(ciphertext);
|
|
return crv;
|
|
}
|
|
|
|
/* Encrypt using the public key. */
|
|
crv = NSC_Encrypt(hSession,
|
|
known_message,
|
|
PAIRWISE_MESSAGE_LENGTH,
|
|
ciphertext,
|
|
&bytes_encrypted);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(ciphertext);
|
|
return crv;
|
|
}
|
|
|
|
/* Always use the smaller of these two values . . . */
|
|
bytes_compared = PR_MIN(bytes_encrypted, PAIRWISE_MESSAGE_LENGTH);
|
|
|
|
/*
|
|
* If there was a failure, the plaintext
|
|
* goes at the end, therefore . . .
|
|
*/
|
|
text_compared = ciphertext + bytes_encrypted - bytes_compared;
|
|
|
|
/*
|
|
* Check to ensure that ciphertext does
|
|
* NOT EQUAL known input message text
|
|
* per FIPS PUB 140-2 directive.
|
|
*/
|
|
if (PORT_Memcmp(text_compared, known_message,
|
|
bytes_compared) == 0) {
|
|
/* Set error to Invalid PRIVATE Key. */
|
|
PORT_SetError(SEC_ERROR_INVALID_KEY);
|
|
PORT_Free(ciphertext);
|
|
return CKR_GENERAL_ERROR;
|
|
}
|
|
|
|
/* Prepare for decryption using the private key. */
|
|
crv = NSC_DecryptInit(hSession, &mech, privateKey->handle);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(ciphertext);
|
|
return crv;
|
|
}
|
|
|
|
memset(plaintext, 0, PAIRWISE_MESSAGE_LENGTH);
|
|
|
|
/*
|
|
* Initialize bytes decrypted to be the
|
|
* expected PAIRWISE_MESSAGE_LENGTH.
|
|
*/
|
|
bytes_decrypted = PAIRWISE_MESSAGE_LENGTH;
|
|
|
|
/*
|
|
* Decrypt using the private key.
|
|
* NOTE: No need to reset the
|
|
* value of bytes_encrypted.
|
|
*/
|
|
crv = NSC_Decrypt(hSession,
|
|
ciphertext,
|
|
bytes_encrypted,
|
|
plaintext,
|
|
&bytes_decrypted);
|
|
|
|
/* Finished with ciphertext; free it. */
|
|
PORT_Free(ciphertext);
|
|
|
|
if (crv != CKR_OK) {
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
* Check to ensure that the output plaintext
|
|
* does EQUAL known input message text.
|
|
*/
|
|
if ((bytes_decrypted != PAIRWISE_MESSAGE_LENGTH) ||
|
|
(PORT_Memcmp(plaintext, known_message,
|
|
PAIRWISE_MESSAGE_LENGTH) != 0)) {
|
|
/* Set error to Bad PUBLIC Key. */
|
|
PORT_SetError(SEC_ERROR_BAD_KEY);
|
|
return CKR_GENERAL_ERROR;
|
|
}
|
|
}
|
|
|
|
/**********************************************/
|
|
/* Pairwise Consistency Check of Sign/Verify. */
|
|
/**********************************************/
|
|
|
|
canSignVerify = sftk_isTrue(privateKey, CKA_SIGN);
|
|
/* Unfortunately CKA_SIGN is always true in lg dbs. We have to check the
|
|
* actual curve to determine if we can do sign/verify. */
|
|
if (canSignVerify && keyType == CKK_EC) {
|
|
NSSLOWKEYPrivateKey *privKey = sftk_GetPrivKey(privateKey, CKK_EC, &crv);
|
|
if (privKey && privKey->u.ec.ecParams.name == ECCurve25519) {
|
|
canSignVerify = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
if (canSignVerify) {
|
|
/* Determine length of signature. */
|
|
switch (keyType) {
|
|
case CKK_RSA:
|
|
signature_length = modulusLen;
|
|
mech.mechanism = CKM_RSA_PKCS;
|
|
break;
|
|
case CKK_DSA:
|
|
signature_length = DSA_MAX_SIGNATURE_LEN;
|
|
pairwise_digest_length = subPrimeLen;
|
|
mech.mechanism = CKM_DSA;
|
|
break;
|
|
case CKK_EC:
|
|
signature_length = MAX_ECKEY_LEN * 2;
|
|
mech.mechanism = CKM_ECDSA;
|
|
break;
|
|
default:
|
|
return CKR_DEVICE_ERROR;
|
|
}
|
|
|
|
/* Allocate space for signature data. */
|
|
signature = (unsigned char *)PORT_ZAlloc(signature_length);
|
|
if (signature == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
/* Sign the known hash using the private key. */
|
|
crv = NSC_SignInit(hSession, &mech, privateKey->handle);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(signature);
|
|
return crv;
|
|
}
|
|
|
|
crv = NSC_Sign(hSession,
|
|
known_digest,
|
|
pairwise_digest_length,
|
|
signature,
|
|
&signature_length);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(signature);
|
|
return crv;
|
|
}
|
|
|
|
/* Verify the known hash using the public key. */
|
|
crv = NSC_VerifyInit(hSession, &mech, publicKey->handle);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(signature);
|
|
return crv;
|
|
}
|
|
|
|
crv = NSC_Verify(hSession,
|
|
known_digest,
|
|
pairwise_digest_length,
|
|
signature,
|
|
signature_length);
|
|
|
|
/* Free signature data. */
|
|
PORT_Free(signature);
|
|
|
|
if ((crv == CKR_SIGNATURE_LEN_RANGE) ||
|
|
(crv == CKR_SIGNATURE_INVALID)) {
|
|
return CKR_GENERAL_ERROR;
|
|
}
|
|
if (crv != CKR_OK) {
|
|
return crv;
|
|
}
|
|
}
|
|
|
|
/**********************************************/
|
|
/* Pairwise Consistency Check for Derivation */
|
|
/**********************************************/
|
|
|
|
isDerivable = sftk_isTrue(privateKey, CKA_DERIVE);
|
|
|
|
if (isDerivable) {
|
|
/*
|
|
* We are not doing consistency check for Diffie-Hellman Key -
|
|
* otherwise it would be here
|
|
* This is also true for Elliptic Curve Diffie-Hellman keys
|
|
* NOTE: EC keys are currently subjected to pairwise
|
|
* consistency check for signing/verification.
|
|
*/
|
|
/*
|
|
* FIPS 140-2 had the following pairwise consistency test for
|
|
* public and private keys used for key agreement:
|
|
* If the keys are used to perform key agreement, then the
|
|
* cryptographic module shall create a second, compatible
|
|
* key pair. The cryptographic module shall perform both
|
|
* sides of the key agreement algorithm and shall compare
|
|
* the resulting shared values. If the shared values are
|
|
* not equal, the test shall fail.
|
|
* This test was removed in Change Notice 3.
|
|
*/
|
|
}
|
|
|
|
return CKR_OK;
|
|
}
|
|
|
|
/* NSC_GenerateKeyPair generates a public-key/private-key pair,
|
|
* creating new key objects. */
|
|
CK_RV
|
|
NSC_GenerateKeyPair(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_ATTRIBUTE_PTR pPublicKeyTemplate,
|
|
CK_ULONG ulPublicKeyAttributeCount, CK_ATTRIBUTE_PTR pPrivateKeyTemplate,
|
|
CK_ULONG ulPrivateKeyAttributeCount, CK_OBJECT_HANDLE_PTR phPublicKey,
|
|
CK_OBJECT_HANDLE_PTR phPrivateKey)
|
|
{
|
|
SFTKObject *publicKey, *privateKey;
|
|
SFTKSession *session;
|
|
CK_KEY_TYPE key_type;
|
|
CK_RV crv = CKR_OK;
|
|
CK_BBOOL cktrue = CK_TRUE;
|
|
SECStatus rv;
|
|
CK_OBJECT_CLASS pubClass = CKO_PUBLIC_KEY;
|
|
CK_OBJECT_CLASS privClass = CKO_PRIVATE_KEY;
|
|
int i;
|
|
SFTKSlot *slot = sftk_SlotFromSessionHandle(hSession);
|
|
unsigned int bitSize;
|
|
|
|
/* RSA */
|
|
int public_modulus_bits = 0;
|
|
SECItem pubExp;
|
|
RSAPrivateKey *rsaPriv;
|
|
|
|
/* DSA */
|
|
PQGParams pqgParam;
|
|
DHParams dhParam;
|
|
DSAPrivateKey *dsaPriv;
|
|
|
|
/* Diffie Hellman */
|
|
DHPrivateKey *dhPriv;
|
|
|
|
/* Elliptic Curve Cryptography */
|
|
SECItem ecEncodedParams; /* DER Encoded parameters */
|
|
ECPrivateKey *ecPriv;
|
|
ECParams *ecParams;
|
|
|
|
CHECK_FORK();
|
|
|
|
if (!slot) {
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
/*
|
|
* now lets create an object to hang the attributes off of
|
|
*/
|
|
publicKey = sftk_NewObject(slot); /* fill in the handle later */
|
|
if (publicKey == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
/*
|
|
* load the template values into the publicKey
|
|
*/
|
|
for (i = 0; i < (int)ulPublicKeyAttributeCount; i++) {
|
|
if (pPublicKeyTemplate[i].type == CKA_MODULUS_BITS) {
|
|
public_modulus_bits = *(CK_ULONG *)pPublicKeyTemplate[i].pValue;
|
|
continue;
|
|
}
|
|
|
|
crv = sftk_AddAttributeType(publicKey,
|
|
sftk_attr_expand(&pPublicKeyTemplate[i]));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(publicKey);
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
privateKey = sftk_NewObject(slot); /* fill in the handle later */
|
|
if (privateKey == NULL) {
|
|
sftk_FreeObject(publicKey);
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
/*
|
|
* now load the private key template
|
|
*/
|
|
for (i = 0; i < (int)ulPrivateKeyAttributeCount; i++) {
|
|
if (pPrivateKeyTemplate[i].type == CKA_VALUE_BITS) {
|
|
continue;
|
|
}
|
|
|
|
crv = sftk_AddAttributeType(privateKey,
|
|
sftk_attr_expand(&pPrivateKeyTemplate[i]));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(publicKey);
|
|
sftk_FreeObject(privateKey);
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
sftk_DeleteAttributeType(privateKey, CKA_CLASS);
|
|
sftk_DeleteAttributeType(privateKey, CKA_KEY_TYPE);
|
|
sftk_DeleteAttributeType(privateKey, CKA_VALUE);
|
|
sftk_DeleteAttributeType(publicKey, CKA_CLASS);
|
|
sftk_DeleteAttributeType(publicKey, CKA_KEY_TYPE);
|
|
sftk_DeleteAttributeType(publicKey, CKA_VALUE);
|
|
|
|
/* Now Set up the parameters to generate the key (based on mechanism) */
|
|
switch (pMechanism->mechanism) {
|
|
case CKM_RSA_PKCS_KEY_PAIR_GEN:
|
|
/* format the keys */
|
|
sftk_DeleteAttributeType(publicKey, CKA_MODULUS);
|
|
sftk_DeleteAttributeType(privateKey, CKA_NETSCAPE_DB);
|
|
sftk_DeleteAttributeType(privateKey, CKA_MODULUS);
|
|
sftk_DeleteAttributeType(privateKey, CKA_PRIVATE_EXPONENT);
|
|
sftk_DeleteAttributeType(privateKey, CKA_PUBLIC_EXPONENT);
|
|
sftk_DeleteAttributeType(privateKey, CKA_PRIME_1);
|
|
sftk_DeleteAttributeType(privateKey, CKA_PRIME_2);
|
|
sftk_DeleteAttributeType(privateKey, CKA_EXPONENT_1);
|
|
sftk_DeleteAttributeType(privateKey, CKA_EXPONENT_2);
|
|
sftk_DeleteAttributeType(privateKey, CKA_COEFFICIENT);
|
|
key_type = CKK_RSA;
|
|
if (public_modulus_bits == 0) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
}
|
|
if (public_modulus_bits < RSA_MIN_MODULUS_BITS) {
|
|
crv = CKR_ATTRIBUTE_VALUE_INVALID;
|
|
break;
|
|
}
|
|
if (public_modulus_bits % 2 != 0) {
|
|
crv = CKR_ATTRIBUTE_VALUE_INVALID;
|
|
break;
|
|
}
|
|
|
|
/* extract the exponent */
|
|
crv = sftk_Attribute2SSecItem(NULL, &pubExp, publicKey, CKA_PUBLIC_EXPONENT);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
bitSize = sftk_GetLengthInBits(pubExp.data, pubExp.len);
|
|
if (bitSize < 2) {
|
|
crv = CKR_ATTRIBUTE_VALUE_INVALID;
|
|
break;
|
|
}
|
|
crv = sftk_AddAttributeType(privateKey, CKA_PUBLIC_EXPONENT,
|
|
sftk_item_expand(&pubExp));
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(pubExp.data);
|
|
break;
|
|
}
|
|
|
|
rsaPriv = RSA_NewKey(public_modulus_bits, &pubExp);
|
|
PORT_Free(pubExp.data);
|
|
if (rsaPriv == NULL) {
|
|
if (PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
break;
|
|
}
|
|
/* now fill in the RSA dependent paramenters in the public key */
|
|
crv = sftk_AddAttributeType(publicKey, CKA_MODULUS,
|
|
sftk_item_expand(&rsaPriv->modulus));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
/* now fill in the RSA dependent paramenters in the private key */
|
|
crv = sftk_AddAttributeType(privateKey, CKA_NETSCAPE_DB,
|
|
sftk_item_expand(&rsaPriv->modulus));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_MODULUS,
|
|
sftk_item_expand(&rsaPriv->modulus));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_PRIVATE_EXPONENT,
|
|
sftk_item_expand(&rsaPriv->privateExponent));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_PRIME_1,
|
|
sftk_item_expand(&rsaPriv->prime1));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_PRIME_2,
|
|
sftk_item_expand(&rsaPriv->prime2));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_EXPONENT_1,
|
|
sftk_item_expand(&rsaPriv->exponent1));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_EXPONENT_2,
|
|
sftk_item_expand(&rsaPriv->exponent2));
|
|
if (crv != CKR_OK)
|
|
goto kpg_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_COEFFICIENT,
|
|
sftk_item_expand(&rsaPriv->coefficient));
|
|
kpg_done:
|
|
/* Should zeroize the contents first, since this func doesn't. */
|
|
PORT_FreeArena(rsaPriv->arena, PR_TRUE);
|
|
break;
|
|
case CKM_DSA_KEY_PAIR_GEN:
|
|
sftk_DeleteAttributeType(publicKey, CKA_VALUE);
|
|
sftk_DeleteAttributeType(privateKey, CKA_NETSCAPE_DB);
|
|
sftk_DeleteAttributeType(privateKey, CKA_PRIME);
|
|
sftk_DeleteAttributeType(privateKey, CKA_SUBPRIME);
|
|
sftk_DeleteAttributeType(privateKey, CKA_BASE);
|
|
key_type = CKK_DSA;
|
|
|
|
/* extract the necessary parameters and copy them to the private key */
|
|
crv = sftk_Attribute2SSecItem(NULL, &pqgParam.prime, publicKey, CKA_PRIME);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_Attribute2SSecItem(NULL, &pqgParam.subPrime, publicKey,
|
|
CKA_SUBPRIME);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(pqgParam.prime.data);
|
|
break;
|
|
}
|
|
crv = sftk_Attribute2SSecItem(NULL, &pqgParam.base, publicKey, CKA_BASE);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
break;
|
|
}
|
|
crv = sftk_AddAttributeType(privateKey, CKA_PRIME,
|
|
sftk_item_expand(&pqgParam.prime));
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
PORT_Free(pqgParam.base.data);
|
|
break;
|
|
}
|
|
crv = sftk_AddAttributeType(privateKey, CKA_SUBPRIME,
|
|
sftk_item_expand(&pqgParam.subPrime));
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
PORT_Free(pqgParam.base.data);
|
|
break;
|
|
}
|
|
crv = sftk_AddAttributeType(privateKey, CKA_BASE,
|
|
sftk_item_expand(&pqgParam.base));
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
PORT_Free(pqgParam.base.data);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* these are checked by DSA_NewKey
|
|
*/
|
|
bitSize = sftk_GetLengthInBits(pqgParam.subPrime.data,
|
|
pqgParam.subPrime.len);
|
|
if ((bitSize < DSA_MIN_Q_BITS) || (bitSize > DSA_MAX_Q_BITS)) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
PORT_Free(pqgParam.base.data);
|
|
break;
|
|
}
|
|
bitSize = sftk_GetLengthInBits(pqgParam.prime.data, pqgParam.prime.len);
|
|
if ((bitSize < DSA_MIN_P_BITS) || (bitSize > DSA_MAX_P_BITS)) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
PORT_Free(pqgParam.base.data);
|
|
break;
|
|
}
|
|
bitSize = sftk_GetLengthInBits(pqgParam.base.data, pqgParam.base.len);
|
|
if ((bitSize < 2) || (bitSize > DSA_MAX_P_BITS)) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
PORT_Free(pqgParam.base.data);
|
|
break;
|
|
}
|
|
|
|
/* Generate the key */
|
|
rv = DSA_NewKey(&pqgParam, &dsaPriv);
|
|
|
|
PORT_Free(pqgParam.prime.data);
|
|
PORT_Free(pqgParam.subPrime.data);
|
|
PORT_Free(pqgParam.base.data);
|
|
|
|
if (rv != SECSuccess) {
|
|
if (PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
break;
|
|
}
|
|
|
|
/* store the generated key into the attributes */
|
|
crv = sftk_AddAttributeType(publicKey, CKA_VALUE,
|
|
sftk_item_expand(&dsaPriv->publicValue));
|
|
if (crv != CKR_OK)
|
|
goto dsagn_done;
|
|
|
|
/* now fill in the RSA dependent paramenters in the private key */
|
|
crv = sftk_AddAttributeType(privateKey, CKA_NETSCAPE_DB,
|
|
sftk_item_expand(&dsaPriv->publicValue));
|
|
if (crv != CKR_OK)
|
|
goto dsagn_done;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_VALUE,
|
|
sftk_item_expand(&dsaPriv->privateValue));
|
|
|
|
dsagn_done:
|
|
/* should zeroize, since this function doesn't. */
|
|
PORT_FreeArena(dsaPriv->params.arena, PR_TRUE);
|
|
break;
|
|
|
|
case CKM_DH_PKCS_KEY_PAIR_GEN:
|
|
sftk_DeleteAttributeType(privateKey, CKA_PRIME);
|
|
sftk_DeleteAttributeType(privateKey, CKA_BASE);
|
|
sftk_DeleteAttributeType(privateKey, CKA_VALUE);
|
|
sftk_DeleteAttributeType(privateKey, CKA_NETSCAPE_DB);
|
|
key_type = CKK_DH;
|
|
|
|
/* extract the necessary parameters and copy them to private keys */
|
|
crv = sftk_Attribute2SSecItem(NULL, &dhParam.prime, publicKey,
|
|
CKA_PRIME);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_Attribute2SSecItem(NULL, &dhParam.base, publicKey, CKA_BASE);
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(dhParam.prime.data);
|
|
break;
|
|
}
|
|
crv = sftk_AddAttributeType(privateKey, CKA_PRIME,
|
|
sftk_item_expand(&dhParam.prime));
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(dhParam.prime.data);
|
|
PORT_Free(dhParam.base.data);
|
|
break;
|
|
}
|
|
crv = sftk_AddAttributeType(privateKey, CKA_BASE,
|
|
sftk_item_expand(&dhParam.base));
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(dhParam.prime.data);
|
|
PORT_Free(dhParam.base.data);
|
|
break;
|
|
}
|
|
bitSize = sftk_GetLengthInBits(dhParam.prime.data, dhParam.prime.len);
|
|
if ((bitSize < DH_MIN_P_BITS) || (bitSize > DH_MAX_P_BITS)) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
PORT_Free(dhParam.prime.data);
|
|
PORT_Free(dhParam.base.data);
|
|
break;
|
|
}
|
|
bitSize = sftk_GetLengthInBits(dhParam.base.data, dhParam.base.len);
|
|
if ((bitSize < 1) || (bitSize > DH_MAX_P_BITS)) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
PORT_Free(dhParam.prime.data);
|
|
PORT_Free(dhParam.base.data);
|
|
break;
|
|
}
|
|
|
|
rv = DH_NewKey(&dhParam, &dhPriv);
|
|
PORT_Free(dhParam.prime.data);
|
|
PORT_Free(dhParam.base.data);
|
|
if (rv != SECSuccess) {
|
|
if (PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
break;
|
|
}
|
|
|
|
crv = sftk_AddAttributeType(publicKey, CKA_VALUE,
|
|
sftk_item_expand(&dhPriv->publicValue));
|
|
if (crv != CKR_OK)
|
|
goto dhgn_done;
|
|
|
|
crv = sftk_AddAttributeType(privateKey, CKA_NETSCAPE_DB,
|
|
sftk_item_expand(&dhPriv->publicValue));
|
|
if (crv != CKR_OK)
|
|
goto dhgn_done;
|
|
|
|
crv = sftk_AddAttributeType(privateKey, CKA_VALUE,
|
|
sftk_item_expand(&dhPriv->privateValue));
|
|
|
|
dhgn_done:
|
|
/* should zeroize, since this function doesn't. */
|
|
PORT_FreeArena(dhPriv->arena, PR_TRUE);
|
|
break;
|
|
|
|
case CKM_EC_KEY_PAIR_GEN:
|
|
sftk_DeleteAttributeType(privateKey, CKA_EC_PARAMS);
|
|
sftk_DeleteAttributeType(privateKey, CKA_VALUE);
|
|
sftk_DeleteAttributeType(privateKey, CKA_NETSCAPE_DB);
|
|
key_type = CKK_EC;
|
|
|
|
/* extract the necessary parameters and copy them to private keys */
|
|
crv = sftk_Attribute2SSecItem(NULL, &ecEncodedParams, publicKey,
|
|
CKA_EC_PARAMS);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
crv = sftk_AddAttributeType(privateKey, CKA_EC_PARAMS,
|
|
sftk_item_expand(&ecEncodedParams));
|
|
if (crv != CKR_OK) {
|
|
PORT_Free(ecEncodedParams.data);
|
|
break;
|
|
}
|
|
|
|
/* Decode ec params before calling EC_NewKey */
|
|
rv = EC_DecodeParams(&ecEncodedParams, &ecParams);
|
|
PORT_Free(ecEncodedParams.data);
|
|
if (rv != SECSuccess) {
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
break;
|
|
}
|
|
rv = EC_NewKey(ecParams, &ecPriv);
|
|
if (rv != SECSuccess) {
|
|
if (PORT_GetError() == SEC_ERROR_LIBRARY_FAILURE) {
|
|
sftk_fatalError = PR_TRUE;
|
|
}
|
|
PORT_FreeArena(ecParams->arena, PR_TRUE);
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
break;
|
|
}
|
|
|
|
if (PR_GetEnvSecure("NSS_USE_DECODED_CKA_EC_POINT") ||
|
|
ecParams->fieldID.type == ec_field_plain) {
|
|
PORT_FreeArena(ecParams->arena, PR_TRUE);
|
|
crv = sftk_AddAttributeType(publicKey, CKA_EC_POINT,
|
|
sftk_item_expand(&ecPriv->publicValue));
|
|
} else {
|
|
PORT_FreeArena(ecParams->arena, PR_TRUE);
|
|
SECItem *pubValue = SEC_ASN1EncodeItem(NULL, NULL,
|
|
&ecPriv->publicValue,
|
|
SEC_ASN1_GET(SEC_OctetStringTemplate));
|
|
if (!pubValue) {
|
|
crv = CKR_ARGUMENTS_BAD;
|
|
goto ecgn_done;
|
|
}
|
|
crv = sftk_AddAttributeType(publicKey, CKA_EC_POINT,
|
|
sftk_item_expand(pubValue));
|
|
SECITEM_FreeItem(pubValue, PR_TRUE);
|
|
}
|
|
if (crv != CKR_OK)
|
|
goto ecgn_done;
|
|
|
|
crv = sftk_AddAttributeType(privateKey, CKA_VALUE,
|
|
sftk_item_expand(&ecPriv->privateValue));
|
|
if (crv != CKR_OK)
|
|
goto ecgn_done;
|
|
|
|
crv = sftk_AddAttributeType(privateKey, CKA_NETSCAPE_DB,
|
|
sftk_item_expand(&ecPriv->publicValue));
|
|
ecgn_done:
|
|
/* should zeroize, since this function doesn't. */
|
|
PORT_FreeArena(ecPriv->ecParams.arena, PR_TRUE);
|
|
break;
|
|
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(privateKey);
|
|
sftk_FreeObject(publicKey);
|
|
return crv;
|
|
}
|
|
|
|
/* Add the class, key_type The loop lets us check errors blow out
|
|
* on errors and clean up at the bottom */
|
|
session = NULL; /* make pedtantic happy... session cannot leave the*/
|
|
/* loop below NULL unless an error is set... */
|
|
do {
|
|
crv = sftk_AddAttributeType(privateKey, CKA_CLASS, &privClass,
|
|
sizeof(CK_OBJECT_CLASS));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(publicKey, CKA_CLASS, &pubClass,
|
|
sizeof(CK_OBJECT_CLASS));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(privateKey, CKA_KEY_TYPE, &key_type,
|
|
sizeof(CK_KEY_TYPE));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(publicKey, CKA_KEY_TYPE, &key_type,
|
|
sizeof(CK_KEY_TYPE));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
crv = CKR_SESSION_HANDLE_INVALID;
|
|
} while (0);
|
|
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(privateKey);
|
|
sftk_FreeObject(publicKey);
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
* handle the base object cleanup for the public Key
|
|
*/
|
|
crv = sftk_handleObject(privateKey, session);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeSession(session);
|
|
sftk_FreeObject(privateKey);
|
|
sftk_FreeObject(publicKey);
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
* handle the base object cleanup for the private Key
|
|
* If we have any problems, we destroy the public Key we've
|
|
* created and linked.
|
|
*/
|
|
crv = sftk_handleObject(publicKey, session);
|
|
sftk_FreeSession(session);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(publicKey);
|
|
NSC_DestroyObject(hSession, privateKey->handle);
|
|
sftk_FreeObject(privateKey);
|
|
return crv;
|
|
}
|
|
if (sftk_isTrue(privateKey, CKA_SENSITIVE)) {
|
|
crv = sftk_forceAttribute(privateKey, CKA_ALWAYS_SENSITIVE,
|
|
&cktrue, sizeof(CK_BBOOL));
|
|
}
|
|
if (crv == CKR_OK && sftk_isTrue(publicKey, CKA_SENSITIVE)) {
|
|
crv = sftk_forceAttribute(publicKey, CKA_ALWAYS_SENSITIVE,
|
|
&cktrue, sizeof(CK_BBOOL));
|
|
}
|
|
if (crv == CKR_OK && !sftk_isTrue(privateKey, CKA_EXTRACTABLE)) {
|
|
crv = sftk_forceAttribute(privateKey, CKA_NEVER_EXTRACTABLE,
|
|
&cktrue, sizeof(CK_BBOOL));
|
|
}
|
|
if (crv == CKR_OK && !sftk_isTrue(publicKey, CKA_EXTRACTABLE)) {
|
|
crv = sftk_forceAttribute(publicKey, CKA_NEVER_EXTRACTABLE,
|
|
&cktrue, sizeof(CK_BBOOL));
|
|
}
|
|
|
|
if (crv == CKR_OK) {
|
|
/* Perform FIPS 140-2 pairwise consistency check. */
|
|
crv = sftk_PairwiseConsistencyCheck(hSession,
|
|
publicKey, privateKey, key_type);
|
|
if (crv != CKR_OK) {
|
|
if (sftk_audit_enabled) {
|
|
char msg[128];
|
|
PR_snprintf(msg, sizeof msg,
|
|
"C_GenerateKeyPair(hSession=0x%08lX, "
|
|
"pMechanism->mechanism=0x%08lX)=0x%08lX "
|
|
"self-test: pair-wise consistency test failed",
|
|
(PRUint32)hSession, (PRUint32)pMechanism->mechanism,
|
|
(PRUint32)crv);
|
|
sftk_LogAuditMessage(NSS_AUDIT_ERROR, NSS_AUDIT_SELF_TEST, msg);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
NSC_DestroyObject(hSession, publicKey->handle);
|
|
sftk_FreeObject(publicKey);
|
|
NSC_DestroyObject(hSession, privateKey->handle);
|
|
sftk_FreeObject(privateKey);
|
|
return crv;
|
|
}
|
|
|
|
*phPrivateKey = privateKey->handle;
|
|
*phPublicKey = publicKey->handle;
|
|
sftk_FreeObject(publicKey);
|
|
sftk_FreeObject(privateKey);
|
|
|
|
return CKR_OK;
|
|
}
|
|
|
|
static SECItem *
|
|
sftk_PackagePrivateKey(SFTKObject *key, CK_RV *crvp)
|
|
{
|
|
NSSLOWKEYPrivateKey *lk = NULL;
|
|
NSSLOWKEYPrivateKeyInfo *pki = NULL;
|
|
SFTKAttribute *attribute = NULL;
|
|
PLArenaPool *arena = NULL;
|
|
SECOidTag algorithm = SEC_OID_UNKNOWN;
|
|
void *dummy, *param = NULL;
|
|
SECStatus rv = SECSuccess;
|
|
SECItem *encodedKey = NULL;
|
|
#ifdef EC_DEBUG
|
|
SECItem *fordebug;
|
|
#endif
|
|
int savelen;
|
|
|
|
if (!key) {
|
|
*crvp = CKR_KEY_HANDLE_INVALID; /* really can't happen */
|
|
return NULL;
|
|
}
|
|
|
|
attribute = sftk_FindAttribute(key, CKA_KEY_TYPE);
|
|
if (!attribute) {
|
|
*crvp = CKR_KEY_TYPE_INCONSISTENT;
|
|
return NULL;
|
|
}
|
|
|
|
lk = sftk_GetPrivKey(key, *(CK_KEY_TYPE *)attribute->attrib.pValue, crvp);
|
|
sftk_FreeAttribute(attribute);
|
|
if (!lk) {
|
|
return NULL;
|
|
}
|
|
|
|
arena = PORT_NewArena(2048); /* XXX different size? */
|
|
if (!arena) {
|
|
*crvp = CKR_HOST_MEMORY;
|
|
rv = SECFailure;
|
|
goto loser;
|
|
}
|
|
|
|
pki = (NSSLOWKEYPrivateKeyInfo *)PORT_ArenaZAlloc(arena,
|
|
sizeof(NSSLOWKEYPrivateKeyInfo));
|
|
if (!pki) {
|
|
*crvp = CKR_HOST_MEMORY;
|
|
rv = SECFailure;
|
|
goto loser;
|
|
}
|
|
pki->arena = arena;
|
|
|
|
param = NULL;
|
|
switch (lk->keyType) {
|
|
case NSSLOWKEYRSAKey:
|
|
prepare_low_rsa_priv_key_for_asn1(lk);
|
|
dummy = SEC_ASN1EncodeItem(arena, &pki->privateKey, lk,
|
|
nsslowkey_RSAPrivateKeyTemplate);
|
|
|
|
/* determine RSA key type from the CKA_PUBLIC_KEY_INFO if present */
|
|
attribute = sftk_FindAttribute(key, CKA_PUBLIC_KEY_INFO);
|
|
if (attribute) {
|
|
NSSLOWKEYSubjectPublicKeyInfo *publicKeyInfo;
|
|
SECItem spki;
|
|
|
|
spki.data = attribute->attrib.pValue;
|
|
spki.len = attribute->attrib.ulValueLen;
|
|
|
|
publicKeyInfo = PORT_ArenaZAlloc(arena,
|
|
sizeof(NSSLOWKEYSubjectPublicKeyInfo));
|
|
if (!publicKeyInfo) {
|
|
sftk_FreeAttribute(attribute);
|
|
*crvp = CKR_HOST_MEMORY;
|
|
rv = SECFailure;
|
|
goto loser;
|
|
}
|
|
rv = SEC_QuickDERDecodeItem(arena, publicKeyInfo,
|
|
nsslowkey_SubjectPublicKeyInfoTemplate,
|
|
&spki);
|
|
if (rv != SECSuccess) {
|
|
sftk_FreeAttribute(attribute);
|
|
*crvp = CKR_KEY_TYPE_INCONSISTENT;
|
|
goto loser;
|
|
}
|
|
algorithm = SECOID_GetAlgorithmTag(&publicKeyInfo->algorithm);
|
|
if (algorithm != SEC_OID_PKCS1_RSA_ENCRYPTION &&
|
|
algorithm != SEC_OID_PKCS1_RSA_PSS_SIGNATURE) {
|
|
sftk_FreeAttribute(attribute);
|
|
rv = SECFailure;
|
|
*crvp = CKR_KEY_TYPE_INCONSISTENT;
|
|
goto loser;
|
|
}
|
|
param = SECITEM_DupItem(&publicKeyInfo->algorithm.parameters);
|
|
if (!param) {
|
|
sftk_FreeAttribute(attribute);
|
|
rv = SECFailure;
|
|
*crvp = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
sftk_FreeAttribute(attribute);
|
|
} else {
|
|
/* default to PKCS #1 */
|
|
algorithm = SEC_OID_PKCS1_RSA_ENCRYPTION;
|
|
}
|
|
break;
|
|
case NSSLOWKEYDSAKey:
|
|
prepare_low_dsa_priv_key_export_for_asn1(lk);
|
|
dummy = SEC_ASN1EncodeItem(arena, &pki->privateKey, lk,
|
|
nsslowkey_DSAPrivateKeyExportTemplate);
|
|
prepare_low_pqg_params_for_asn1(&lk->u.dsa.params);
|
|
param = SEC_ASN1EncodeItem(NULL, NULL, &(lk->u.dsa.params),
|
|
nsslowkey_PQGParamsTemplate);
|
|
algorithm = SEC_OID_ANSIX9_DSA_SIGNATURE;
|
|
break;
|
|
case NSSLOWKEYECKey:
|
|
prepare_low_ec_priv_key_for_asn1(lk);
|
|
/* Public value is encoded as a bit string so adjust length
|
|
* to be in bits before ASN encoding and readjust
|
|
* immediately after.
|
|
*
|
|
* Since the SECG specification recommends not including the
|
|
* parameters as part of ECPrivateKey, we zero out the curveOID
|
|
* length before encoding and restore it later.
|
|
*/
|
|
lk->u.ec.publicValue.len <<= 3;
|
|
savelen = lk->u.ec.ecParams.curveOID.len;
|
|
lk->u.ec.ecParams.curveOID.len = 0;
|
|
dummy = SEC_ASN1EncodeItem(arena, &pki->privateKey, lk,
|
|
nsslowkey_ECPrivateKeyTemplate);
|
|
lk->u.ec.ecParams.curveOID.len = savelen;
|
|
lk->u.ec.publicValue.len >>= 3;
|
|
|
|
#ifdef EC_DEBUG
|
|
fordebug = &pki->privateKey;
|
|
SEC_PRINT("sftk_PackagePrivateKey()", "PrivateKey", lk->keyType,
|
|
fordebug);
|
|
#endif
|
|
|
|
param = SECITEM_DupItem(&lk->u.ec.ecParams.DEREncoding);
|
|
|
|
algorithm = SEC_OID_ANSIX962_EC_PUBLIC_KEY;
|
|
break;
|
|
case NSSLOWKEYDHKey:
|
|
default:
|
|
dummy = NULL;
|
|
break;
|
|
}
|
|
|
|
if (!dummy || ((lk->keyType == NSSLOWKEYDSAKey) && !param)) {
|
|
*crvp = CKR_DEVICE_ERROR; /* should map NSS SECError */
|
|
rv = SECFailure;
|
|
goto loser;
|
|
}
|
|
|
|
rv = SECOID_SetAlgorithmID(arena, &pki->algorithm, algorithm,
|
|
(SECItem *)param);
|
|
if (rv != SECSuccess) {
|
|
*crvp = CKR_DEVICE_ERROR; /* should map NSS SECError */
|
|
rv = SECFailure;
|
|
goto loser;
|
|
}
|
|
|
|
dummy = SEC_ASN1EncodeInteger(arena, &pki->version,
|
|
NSSLOWKEY_PRIVATE_KEY_INFO_VERSION);
|
|
if (!dummy) {
|
|
*crvp = CKR_DEVICE_ERROR; /* should map NSS SECError */
|
|
rv = SECFailure;
|
|
goto loser;
|
|
}
|
|
|
|
encodedKey = SEC_ASN1EncodeItem(NULL, NULL, pki,
|
|
nsslowkey_PrivateKeyInfoTemplate);
|
|
*crvp = encodedKey ? CKR_OK : CKR_DEVICE_ERROR;
|
|
|
|
#ifdef EC_DEBUG
|
|
fordebug = encodedKey;
|
|
SEC_PRINT("sftk_PackagePrivateKey()", "PrivateKeyInfo", lk->keyType,
|
|
fordebug);
|
|
#endif
|
|
loser:
|
|
if (arena) {
|
|
PORT_FreeArena(arena, PR_TRUE);
|
|
}
|
|
|
|
if (lk && (lk != key->objectInfo)) {
|
|
nsslowkey_DestroyPrivateKey(lk);
|
|
}
|
|
|
|
if (param) {
|
|
SECITEM_ZfreeItem((SECItem *)param, PR_TRUE);
|
|
}
|
|
|
|
if (rv != SECSuccess) {
|
|
return NULL;
|
|
}
|
|
|
|
return encodedKey;
|
|
}
|
|
|
|
/* it doesn't matter yet, since we colapse error conditions in the
|
|
* level above, but we really should map those few key error differences */
|
|
static CK_RV
|
|
sftk_mapWrap(CK_RV crv)
|
|
{
|
|
switch (crv) {
|
|
case CKR_ENCRYPTED_DATA_INVALID:
|
|
crv = CKR_WRAPPED_KEY_INVALID;
|
|
break;
|
|
}
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_WrapKey wraps (i.e., encrypts) a key. */
|
|
CK_RV
|
|
NSC_WrapKey(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hWrappingKey,
|
|
CK_OBJECT_HANDLE hKey, CK_BYTE_PTR pWrappedKey,
|
|
CK_ULONG_PTR pulWrappedKeyLen)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKAttribute *attribute;
|
|
SFTKObject *key;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL) {
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
|
|
key = sftk_ObjectFromHandle(hKey, session);
|
|
sftk_FreeSession(session);
|
|
if (key == NULL) {
|
|
return CKR_KEY_HANDLE_INVALID;
|
|
}
|
|
|
|
switch (key->objclass) {
|
|
case CKO_SECRET_KEY: {
|
|
SFTKSessionContext *context = NULL;
|
|
SECItem pText;
|
|
|
|
attribute = sftk_FindAttribute(key, CKA_VALUE);
|
|
|
|
if (attribute == NULL) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
crv = sftk_CryptInit(hSession, pMechanism, hWrappingKey,
|
|
CKA_WRAP, CKA_WRAP, SFTK_ENCRYPT, PR_TRUE);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeAttribute(attribute);
|
|
break;
|
|
}
|
|
|
|
pText.type = siBuffer;
|
|
pText.data = (unsigned char *)attribute->attrib.pValue;
|
|
pText.len = attribute->attrib.ulValueLen;
|
|
|
|
/* Find out if this is a block cipher. */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_ENCRYPT, PR_FALSE, NULL);
|
|
if (crv != CKR_OK || !context)
|
|
break;
|
|
if (context->blockSize > 1) {
|
|
unsigned int remainder = pText.len % context->blockSize;
|
|
if (!context->doPad && remainder) {
|
|
/* When wrapping secret keys with unpadded block ciphers,
|
|
** the keys are zero padded, if necessary, to fill out
|
|
** a full block.
|
|
*/
|
|
pText.len += context->blockSize - remainder;
|
|
pText.data = PORT_ZAlloc(pText.len);
|
|
if (pText.data)
|
|
memcpy(pText.data, attribute->attrib.pValue,
|
|
attribute->attrib.ulValueLen);
|
|
else {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
crv = NSC_Encrypt(hSession, (CK_BYTE_PTR)pText.data,
|
|
pText.len, pWrappedKey, pulWrappedKeyLen);
|
|
/* always force a finalize, both on errors and when
|
|
* we are just getting the size */
|
|
if (crv != CKR_OK || pWrappedKey == NULL) {
|
|
CK_RV lcrv;
|
|
lcrv = sftk_GetContext(hSession, &context,
|
|
SFTK_ENCRYPT, PR_FALSE, NULL);
|
|
sftk_SetContextByType(session, SFTK_ENCRYPT, NULL);
|
|
if (lcrv == CKR_OK && context) {
|
|
sftk_FreeContext(context);
|
|
}
|
|
}
|
|
|
|
if (pText.data != (unsigned char *)attribute->attrib.pValue)
|
|
PORT_ZFree(pText.data, pText.len);
|
|
sftk_FreeAttribute(attribute);
|
|
break;
|
|
}
|
|
|
|
case CKO_PRIVATE_KEY: {
|
|
SECItem *bpki = sftk_PackagePrivateKey(key, &crv);
|
|
SFTKSessionContext *context = NULL;
|
|
|
|
if (!bpki) {
|
|
break;
|
|
}
|
|
|
|
crv = sftk_CryptInit(hSession, pMechanism, hWrappingKey,
|
|
CKA_WRAP, CKA_WRAP, SFTK_ENCRYPT, PR_TRUE);
|
|
if (crv != CKR_OK) {
|
|
SECITEM_ZfreeItem(bpki, PR_TRUE);
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
|
|
crv = NSC_Encrypt(hSession, bpki->data, bpki->len,
|
|
pWrappedKey, pulWrappedKeyLen);
|
|
/* always force a finalize */
|
|
if (crv != CKR_OK || pWrappedKey == NULL) {
|
|
CK_RV lcrv;
|
|
lcrv = sftk_GetContext(hSession, &context,
|
|
SFTK_ENCRYPT, PR_FALSE, NULL);
|
|
sftk_SetContextByType(session, SFTK_ENCRYPT, NULL);
|
|
if (lcrv == CKR_OK && context) {
|
|
sftk_FreeContext(context);
|
|
}
|
|
}
|
|
SECITEM_ZfreeItem(bpki, PR_TRUE);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
sftk_FreeObject(key);
|
|
|
|
return sftk_mapWrap(crv);
|
|
}
|
|
|
|
/*
|
|
* import a pprivate key info into the desired slot
|
|
*/
|
|
static SECStatus
|
|
sftk_unwrapPrivateKey(SFTKObject *key, SECItem *bpki)
|
|
{
|
|
CK_BBOOL cktrue = CK_TRUE;
|
|
CK_KEY_TYPE keyType = CKK_RSA;
|
|
SECStatus rv = SECFailure;
|
|
const SEC_ASN1Template *keyTemplate, *paramTemplate;
|
|
void *paramDest = NULL;
|
|
PLArenaPool *arena;
|
|
NSSLOWKEYPrivateKey *lpk = NULL;
|
|
NSSLOWKEYPrivateKeyInfo *pki = NULL;
|
|
CK_RV crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
|
|
arena = PORT_NewArena(2048);
|
|
if (!arena) {
|
|
return SECFailure;
|
|
}
|
|
|
|
pki = (NSSLOWKEYPrivateKeyInfo *)PORT_ArenaZAlloc(arena,
|
|
sizeof(NSSLOWKEYPrivateKeyInfo));
|
|
if (!pki) {
|
|
PORT_FreeArena(arena, PR_FALSE);
|
|
return SECFailure;
|
|
}
|
|
|
|
if (SEC_ASN1DecodeItem(arena, pki, nsslowkey_PrivateKeyInfoTemplate, bpki) != SECSuccess) {
|
|
PORT_FreeArena(arena, PR_TRUE);
|
|
return SECFailure;
|
|
}
|
|
|
|
lpk = (NSSLOWKEYPrivateKey *)PORT_ArenaZAlloc(arena,
|
|
sizeof(NSSLOWKEYPrivateKey));
|
|
if (lpk == NULL) {
|
|
goto loser;
|
|
}
|
|
lpk->arena = arena;
|
|
|
|
switch (SECOID_GetAlgorithmTag(&pki->algorithm)) {
|
|
case SEC_OID_PKCS1_RSA_ENCRYPTION:
|
|
case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
|
|
keyTemplate = nsslowkey_RSAPrivateKeyTemplate;
|
|
paramTemplate = NULL;
|
|
paramDest = NULL;
|
|
lpk->keyType = NSSLOWKEYRSAKey;
|
|
prepare_low_rsa_priv_key_for_asn1(lpk);
|
|
break;
|
|
case SEC_OID_ANSIX9_DSA_SIGNATURE:
|
|
keyTemplate = nsslowkey_DSAPrivateKeyExportTemplate;
|
|
paramTemplate = nsslowkey_PQGParamsTemplate;
|
|
paramDest = &(lpk->u.dsa.params);
|
|
lpk->keyType = NSSLOWKEYDSAKey;
|
|
prepare_low_dsa_priv_key_export_for_asn1(lpk);
|
|
prepare_low_pqg_params_for_asn1(&lpk->u.dsa.params);
|
|
break;
|
|
/* case NSSLOWKEYDHKey: */
|
|
case SEC_OID_ANSIX962_EC_PUBLIC_KEY:
|
|
keyTemplate = nsslowkey_ECPrivateKeyTemplate;
|
|
paramTemplate = NULL;
|
|
paramDest = &(lpk->u.ec.ecParams.DEREncoding);
|
|
lpk->keyType = NSSLOWKEYECKey;
|
|
prepare_low_ec_priv_key_for_asn1(lpk);
|
|
prepare_low_ecparams_for_asn1(&lpk->u.ec.ecParams);
|
|
break;
|
|
default:
|
|
keyTemplate = NULL;
|
|
paramTemplate = NULL;
|
|
paramDest = NULL;
|
|
break;
|
|
}
|
|
|
|
if (!keyTemplate) {
|
|
goto loser;
|
|
}
|
|
|
|
/* decode the private key and any algorithm parameters */
|
|
rv = SEC_QuickDERDecodeItem(arena, lpk, keyTemplate, &pki->privateKey);
|
|
|
|
if (lpk->keyType == NSSLOWKEYECKey) {
|
|
/* convert length in bits to length in bytes */
|
|
lpk->u.ec.publicValue.len >>= 3;
|
|
rv = SECITEM_CopyItem(arena,
|
|
&(lpk->u.ec.ecParams.DEREncoding),
|
|
&(pki->algorithm.parameters));
|
|
if (rv != SECSuccess) {
|
|
goto loser;
|
|
}
|
|
}
|
|
|
|
if (rv != SECSuccess) {
|
|
goto loser;
|
|
}
|
|
if (paramDest && paramTemplate) {
|
|
rv = SEC_QuickDERDecodeItem(arena, paramDest, paramTemplate,
|
|
&(pki->algorithm.parameters));
|
|
if (rv != SECSuccess) {
|
|
goto loser;
|
|
}
|
|
}
|
|
|
|
rv = SECFailure;
|
|
|
|
switch (lpk->keyType) {
|
|
case NSSLOWKEYRSAKey:
|
|
keyType = CKK_RSA;
|
|
if (sftk_hasAttribute(key, CKA_NETSCAPE_DB)) {
|
|
sftk_DeleteAttributeType(key, CKA_NETSCAPE_DB);
|
|
}
|
|
crv = sftk_AddAttributeType(key, CKA_KEY_TYPE, &keyType,
|
|
sizeof(keyType));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_UNWRAP, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_DECRYPT, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_SIGN, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_SIGN_RECOVER, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_MODULUS,
|
|
sftk_item_expand(&lpk->u.rsa.modulus));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_PUBLIC_EXPONENT,
|
|
sftk_item_expand(&lpk->u.rsa.publicExponent));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_PRIVATE_EXPONENT,
|
|
sftk_item_expand(&lpk->u.rsa.privateExponent));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_PRIME_1,
|
|
sftk_item_expand(&lpk->u.rsa.prime1));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_PRIME_2,
|
|
sftk_item_expand(&lpk->u.rsa.prime2));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_EXPONENT_1,
|
|
sftk_item_expand(&lpk->u.rsa.exponent1));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_EXPONENT_2,
|
|
sftk_item_expand(&lpk->u.rsa.exponent2));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_COEFFICIENT,
|
|
sftk_item_expand(&lpk->u.rsa.coefficient));
|
|
break;
|
|
case NSSLOWKEYDSAKey:
|
|
keyType = CKK_DSA;
|
|
crv = (sftk_hasAttribute(key, CKA_NETSCAPE_DB)) ? CKR_OK : CKR_KEY_TYPE_INCONSISTENT;
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_KEY_TYPE, &keyType,
|
|
sizeof(keyType));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_SIGN, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_SIGN_RECOVER, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_PRIME,
|
|
sftk_item_expand(&lpk->u.dsa.params.prime));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_SUBPRIME,
|
|
sftk_item_expand(&lpk->u.dsa.params.subPrime));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_BASE,
|
|
sftk_item_expand(&lpk->u.dsa.params.base));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_VALUE,
|
|
sftk_item_expand(&lpk->u.dsa.privateValue));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
break;
|
|
#ifdef notdef
|
|
case NSSLOWKEYDHKey:
|
|
template = dhTemplate;
|
|
templateCount = sizeof(dhTemplate) / sizeof(CK_ATTRIBUTE);
|
|
keyType = CKK_DH;
|
|
break;
|
|
#endif
|
|
/* what about fortezza??? */
|
|
case NSSLOWKEYECKey:
|
|
keyType = CKK_EC;
|
|
crv = (sftk_hasAttribute(key, CKA_NETSCAPE_DB)) ? CKR_OK : CKR_KEY_TYPE_INCONSISTENT;
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_KEY_TYPE, &keyType,
|
|
sizeof(keyType));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_SIGN, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_SIGN_RECOVER, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_DERIVE, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_EC_PARAMS,
|
|
sftk_item_expand(&lpk->u.ec.ecParams.DEREncoding));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_AddAttributeType(key, CKA_VALUE,
|
|
sftk_item_expand(&lpk->u.ec.privateValue));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
/* XXX Do we need to decode the EC Params here ?? */
|
|
break;
|
|
default:
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
goto loser;
|
|
}
|
|
|
|
/* For RSA-PSS, record the original algorithm parameters so
|
|
* they can be encrypted altoghether when wrapping */
|
|
if (SECOID_GetAlgorithmTag(&pki->algorithm) == SEC_OID_PKCS1_RSA_PSS_SIGNATURE) {
|
|
NSSLOWKEYSubjectPublicKeyInfo spki;
|
|
NSSLOWKEYPublicKey pubk;
|
|
SECItem *publicKeyInfo;
|
|
|
|
memset(&spki, 0, sizeof(NSSLOWKEYSubjectPublicKeyInfo));
|
|
rv = SECOID_CopyAlgorithmID(arena, &spki.algorithm, &pki->algorithm);
|
|
if (rv != SECSuccess) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
|
|
prepare_low_rsa_pub_key_for_asn1(&pubk);
|
|
|
|
rv = SECITEM_CopyItem(arena, &pubk.u.rsa.modulus, &lpk->u.rsa.modulus);
|
|
if (rv != SECSuccess) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
rv = SECITEM_CopyItem(arena, &pubk.u.rsa.publicExponent, &lpk->u.rsa.publicExponent);
|
|
if (rv != SECSuccess) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
|
|
if (SEC_ASN1EncodeItem(arena, &spki.subjectPublicKey,
|
|
&pubk, nsslowkey_RSAPublicKeyTemplate) == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
|
|
publicKeyInfo = SEC_ASN1EncodeItem(arena, NULL,
|
|
&spki, nsslowkey_SubjectPublicKeyInfoTemplate);
|
|
if (!publicKeyInfo) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
crv = sftk_AddAttributeType(key, CKA_PUBLIC_KEY_INFO,
|
|
sftk_item_expand(publicKeyInfo));
|
|
}
|
|
|
|
loser:
|
|
if (lpk) {
|
|
nsslowkey_DestroyPrivateKey(lpk);
|
|
}
|
|
|
|
if (crv != CKR_OK) {
|
|
return SECFailure;
|
|
}
|
|
|
|
return SECSuccess;
|
|
}
|
|
|
|
/* NSC_UnwrapKey unwraps (decrypts) a wrapped key, creating a new key object. */
|
|
CK_RV
|
|
NSC_UnwrapKey(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hUnwrappingKey,
|
|
CK_BYTE_PTR pWrappedKey, CK_ULONG ulWrappedKeyLen,
|
|
CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulAttributeCount,
|
|
CK_OBJECT_HANDLE_PTR phKey)
|
|
{
|
|
SFTKObject *key = NULL;
|
|
SFTKSession *session;
|
|
CK_ULONG key_length = 0;
|
|
unsigned char *buf = NULL;
|
|
CK_RV crv = CKR_OK;
|
|
int i;
|
|
CK_ULONG bsize = ulWrappedKeyLen;
|
|
SFTKSlot *slot = sftk_SlotFromSessionHandle(hSession);
|
|
SECItem bpki;
|
|
CK_OBJECT_CLASS target_type = CKO_SECRET_KEY;
|
|
|
|
CHECK_FORK();
|
|
|
|
if (!slot) {
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
/*
|
|
* now lets create an object to hang the attributes off of
|
|
*/
|
|
key = sftk_NewObject(slot); /* fill in the handle later */
|
|
if (key == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
/*
|
|
* load the template values into the object
|
|
*/
|
|
for (i = 0; i < (int)ulAttributeCount; i++) {
|
|
if (pTemplate[i].type == CKA_VALUE_LEN) {
|
|
key_length = *(CK_ULONG *)pTemplate[i].pValue;
|
|
continue;
|
|
}
|
|
if (pTemplate[i].type == CKA_CLASS) {
|
|
target_type = *(CK_OBJECT_CLASS *)pTemplate[i].pValue;
|
|
}
|
|
crv = sftk_AddAttributeType(key, sftk_attr_expand(&pTemplate[i]));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
}
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
crv = sftk_CryptInit(hSession, pMechanism, hUnwrappingKey, CKA_UNWRAP,
|
|
CKA_UNWRAP, SFTK_DECRYPT, PR_FALSE);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return sftk_mapWrap(crv);
|
|
}
|
|
|
|
/* allocate the buffer to decrypt into
|
|
* this assumes the unwrapped key is never larger than the
|
|
* wrapped key. For all the mechanisms we support this is true */
|
|
buf = (unsigned char *)PORT_Alloc(ulWrappedKeyLen);
|
|
bsize = ulWrappedKeyLen;
|
|
|
|
crv = NSC_Decrypt(hSession, pWrappedKey, ulWrappedKeyLen, buf, &bsize);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
PORT_Free(buf);
|
|
return sftk_mapWrap(crv);
|
|
}
|
|
|
|
switch (target_type) {
|
|
case CKO_SECRET_KEY:
|
|
if (!sftk_hasAttribute(key, CKA_KEY_TYPE)) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
}
|
|
|
|
if (key_length == 0 || key_length > bsize) {
|
|
key_length = bsize;
|
|
}
|
|
if (key_length > MAX_KEY_LEN) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
|
|
/* add the value */
|
|
crv = sftk_AddAttributeType(key, CKA_VALUE, buf, key_length);
|
|
break;
|
|
case CKO_PRIVATE_KEY:
|
|
bpki.data = (unsigned char *)buf;
|
|
bpki.len = bsize;
|
|
crv = CKR_OK;
|
|
if (sftk_unwrapPrivateKey(key, &bpki) != SECSuccess) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
}
|
|
break;
|
|
default:
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
|
|
PORT_ZFree(buf, bsize);
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
/* get the session */
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL) {
|
|
sftk_FreeObject(key);
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
|
|
/*
|
|
* handle the base object stuff
|
|
*/
|
|
crv = sftk_handleObject(key, session);
|
|
*phKey = key->handle;
|
|
sftk_FreeSession(session);
|
|
sftk_FreeObject(key);
|
|
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
* The SSL key gen mechanism create's lots of keys. This function handles the
|
|
* details of each of these key creation.
|
|
*/
|
|
static CK_RV
|
|
sftk_buildSSLKey(CK_SESSION_HANDLE hSession, SFTKObject *baseKey,
|
|
PRBool isMacKey, unsigned char *keyBlock, unsigned int keySize,
|
|
CK_OBJECT_HANDLE *keyHandle)
|
|
{
|
|
SFTKObject *key;
|
|
SFTKSession *session;
|
|
CK_KEY_TYPE keyType = CKK_GENERIC_SECRET;
|
|
CK_BBOOL cktrue = CK_TRUE;
|
|
CK_BBOOL ckfalse = CK_FALSE;
|
|
CK_RV crv = CKR_HOST_MEMORY;
|
|
|
|
/*
|
|
* now lets create an object to hang the attributes off of
|
|
*/
|
|
*keyHandle = CK_INVALID_HANDLE;
|
|
key = sftk_NewObject(baseKey->slot);
|
|
if (key == NULL)
|
|
return CKR_HOST_MEMORY;
|
|
sftk_narrowToSessionObject(key)->wasDerived = PR_TRUE;
|
|
|
|
crv = sftk_CopyObject(key, baseKey);
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
if (isMacKey) {
|
|
crv = sftk_forceAttribute(key, CKA_KEY_TYPE, &keyType, sizeof(keyType));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_forceAttribute(key, CKA_DERIVE, &cktrue, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_forceAttribute(key, CKA_ENCRYPT, &ckfalse, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_forceAttribute(key, CKA_DECRYPT, &ckfalse, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_forceAttribute(key, CKA_SIGN, &cktrue, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_forceAttribute(key, CKA_VERIFY, &cktrue, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_forceAttribute(key, CKA_WRAP, &ckfalse, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
crv = sftk_forceAttribute(key, CKA_UNWRAP, &ckfalse, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
}
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, keyBlock, keySize);
|
|
if (crv != CKR_OK)
|
|
goto loser;
|
|
|
|
/* get the session */
|
|
crv = CKR_HOST_MEMORY;
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL) {
|
|
goto loser;
|
|
}
|
|
|
|
crv = sftk_handleObject(key, session);
|
|
sftk_FreeSession(session);
|
|
*keyHandle = key->handle;
|
|
loser:
|
|
if (key)
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
* if there is an error, we need to free the keys we already created in SSL
|
|
* This is the routine that will do it..
|
|
*/
|
|
static void
|
|
sftk_freeSSLKeys(CK_SESSION_HANDLE session,
|
|
CK_SSL3_KEY_MAT_OUT *returnedMaterial)
|
|
{
|
|
if (returnedMaterial->hClientMacSecret != CK_INVALID_HANDLE) {
|
|
NSC_DestroyObject(session, returnedMaterial->hClientMacSecret);
|
|
}
|
|
if (returnedMaterial->hServerMacSecret != CK_INVALID_HANDLE) {
|
|
NSC_DestroyObject(session, returnedMaterial->hServerMacSecret);
|
|
}
|
|
if (returnedMaterial->hClientKey != CK_INVALID_HANDLE) {
|
|
NSC_DestroyObject(session, returnedMaterial->hClientKey);
|
|
}
|
|
if (returnedMaterial->hServerKey != CK_INVALID_HANDLE) {
|
|
NSC_DestroyObject(session, returnedMaterial->hServerKey);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* when deriving from sensitive and extractable keys, we need to preserve some
|
|
* of the semantics in the derived key. This helper routine maintains these
|
|
* semantics.
|
|
*/
|
|
static CK_RV
|
|
sftk_DeriveSensitiveCheck(SFTKObject *baseKey, SFTKObject *destKey)
|
|
{
|
|
PRBool hasSensitive;
|
|
PRBool sensitive = PR_FALSE;
|
|
PRBool hasExtractable;
|
|
PRBool extractable = PR_TRUE;
|
|
CK_RV crv = CKR_OK;
|
|
SFTKAttribute *att;
|
|
|
|
hasSensitive = PR_FALSE;
|
|
att = sftk_FindAttribute(destKey, CKA_SENSITIVE);
|
|
if (att) {
|
|
hasSensitive = PR_TRUE;
|
|
sensitive = (PRBool) * (CK_BBOOL *)att->attrib.pValue;
|
|
sftk_FreeAttribute(att);
|
|
}
|
|
|
|
hasExtractable = PR_FALSE;
|
|
att = sftk_FindAttribute(destKey, CKA_EXTRACTABLE);
|
|
if (att) {
|
|
hasExtractable = PR_TRUE;
|
|
extractable = (PRBool) * (CK_BBOOL *)att->attrib.pValue;
|
|
sftk_FreeAttribute(att);
|
|
}
|
|
|
|
/* don't make a key more accessible */
|
|
if (sftk_isTrue(baseKey, CKA_SENSITIVE) && hasSensitive &&
|
|
(sensitive == PR_FALSE)) {
|
|
return CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
}
|
|
if (!sftk_isTrue(baseKey, CKA_EXTRACTABLE) && hasExtractable &&
|
|
(extractable == PR_TRUE)) {
|
|
return CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
}
|
|
|
|
/* inherit parent's sensitivity */
|
|
if (!hasSensitive) {
|
|
att = sftk_FindAttribute(baseKey, CKA_SENSITIVE);
|
|
if (att == NULL)
|
|
return CKR_KEY_TYPE_INCONSISTENT;
|
|
crv = sftk_defaultAttribute(destKey, sftk_attr_expand(&att->attrib));
|
|
sftk_FreeAttribute(att);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
}
|
|
if (!hasExtractable) {
|
|
att = sftk_FindAttribute(baseKey, CKA_EXTRACTABLE);
|
|
if (att == NULL)
|
|
return CKR_KEY_TYPE_INCONSISTENT;
|
|
crv = sftk_defaultAttribute(destKey, sftk_attr_expand(&att->attrib));
|
|
sftk_FreeAttribute(att);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
}
|
|
|
|
/* we should inherit the parent's always extractable/ never sensitive info,
|
|
* but handleObject always forces this attributes, so we would need to do
|
|
* something special. */
|
|
return CKR_OK;
|
|
}
|
|
|
|
/*
|
|
* make known fixed PKCS #11 key types to their sizes in bytes
|
|
*/
|
|
unsigned long
|
|
sftk_MapKeySize(CK_KEY_TYPE keyType)
|
|
{
|
|
switch (keyType) {
|
|
case CKK_CDMF:
|
|
return 8;
|
|
case CKK_DES:
|
|
return 8;
|
|
case CKK_DES2:
|
|
return 16;
|
|
case CKK_DES3:
|
|
return 24;
|
|
/* IDEA and CAST need to be added */
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Inputs:
|
|
* key_len: Length of derived key to be generated.
|
|
* SharedSecret: a shared secret that is the output of a key agreement primitive.
|
|
* SharedInfo: (Optional) some data shared by the entities computing the secret key.
|
|
* SharedInfoLen: the length in octets of SharedInfo
|
|
* Hash: The hash function to be used in the KDF
|
|
* HashLen: the length in octets of the output of Hash
|
|
* Output:
|
|
* key: Pointer to a buffer containing derived key, if return value is SECSuccess.
|
|
*/
|
|
static CK_RV
|
|
sftk_compute_ANSI_X9_63_kdf(CK_BYTE **key, CK_ULONG key_len, SECItem *SharedSecret,
|
|
CK_BYTE_PTR SharedInfo, CK_ULONG SharedInfoLen,
|
|
SECStatus Hash(unsigned char *, const unsigned char *, PRUint32),
|
|
CK_ULONG HashLen)
|
|
{
|
|
unsigned char *buffer = NULL, *output_buffer = NULL;
|
|
PRUint32 buffer_len, max_counter, i;
|
|
SECStatus rv;
|
|
CK_RV crv;
|
|
|
|
/* Check that key_len isn't too long. The maximum key length could be
|
|
* greatly increased if the code below did not limit the 4-byte counter
|
|
* to a maximum value of 255. */
|
|
if (key_len > 254 * HashLen)
|
|
return CKR_ARGUMENTS_BAD;
|
|
|
|
if (SharedInfo == NULL)
|
|
SharedInfoLen = 0;
|
|
|
|
buffer_len = SharedSecret->len + 4 + SharedInfoLen;
|
|
buffer = (CK_BYTE *)PORT_Alloc(buffer_len);
|
|
if (buffer == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
|
|
max_counter = key_len / HashLen;
|
|
if (key_len > max_counter * HashLen)
|
|
max_counter++;
|
|
|
|
output_buffer = (CK_BYTE *)PORT_Alloc(max_counter * HashLen);
|
|
if (output_buffer == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
goto loser;
|
|
}
|
|
|
|
/* Populate buffer with SharedSecret || Counter || [SharedInfo]
|
|
* where Counter is 0x00000001 */
|
|
PORT_Memcpy(buffer, SharedSecret->data, SharedSecret->len);
|
|
buffer[SharedSecret->len] = 0;
|
|
buffer[SharedSecret->len + 1] = 0;
|
|
buffer[SharedSecret->len + 2] = 0;
|
|
buffer[SharedSecret->len + 3] = 1;
|
|
if (SharedInfo) {
|
|
PORT_Memcpy(&buffer[SharedSecret->len + 4], SharedInfo, SharedInfoLen);
|
|
}
|
|
|
|
for (i = 0; i < max_counter; i++) {
|
|
rv = Hash(&output_buffer[i * HashLen], buffer, buffer_len);
|
|
if (rv != SECSuccess) {
|
|
/* 'Hash' should not fail. */
|
|
crv = CKR_FUNCTION_FAILED;
|
|
goto loser;
|
|
}
|
|
|
|
/* Increment counter (assumes max_counter < 255) */
|
|
buffer[SharedSecret->len + 3]++;
|
|
}
|
|
|
|
PORT_ZFree(buffer, buffer_len);
|
|
if (key_len < max_counter * HashLen) {
|
|
PORT_Memset(output_buffer + key_len, 0, max_counter * HashLen - key_len);
|
|
}
|
|
*key = output_buffer;
|
|
|
|
return CKR_OK;
|
|
|
|
loser:
|
|
if (buffer) {
|
|
PORT_ZFree(buffer, buffer_len);
|
|
}
|
|
if (output_buffer) {
|
|
PORT_ZFree(output_buffer, max_counter * HashLen);
|
|
}
|
|
return crv;
|
|
}
|
|
|
|
static CK_RV
|
|
sftk_ANSI_X9_63_kdf(CK_BYTE **key, CK_ULONG key_len,
|
|
SECItem *SharedSecret,
|
|
CK_BYTE_PTR SharedInfo, CK_ULONG SharedInfoLen,
|
|
CK_EC_KDF_TYPE kdf)
|
|
{
|
|
if (kdf == CKD_SHA1_KDF)
|
|
return sftk_compute_ANSI_X9_63_kdf(key, key_len, SharedSecret, SharedInfo,
|
|
SharedInfoLen, SHA1_HashBuf, SHA1_LENGTH);
|
|
else if (kdf == CKD_SHA224_KDF)
|
|
return sftk_compute_ANSI_X9_63_kdf(key, key_len, SharedSecret, SharedInfo,
|
|
SharedInfoLen, SHA224_HashBuf, SHA224_LENGTH);
|
|
else if (kdf == CKD_SHA256_KDF)
|
|
return sftk_compute_ANSI_X9_63_kdf(key, key_len, SharedSecret, SharedInfo,
|
|
SharedInfoLen, SHA256_HashBuf, SHA256_LENGTH);
|
|
else if (kdf == CKD_SHA384_KDF)
|
|
return sftk_compute_ANSI_X9_63_kdf(key, key_len, SharedSecret, SharedInfo,
|
|
SharedInfoLen, SHA384_HashBuf, SHA384_LENGTH);
|
|
else if (kdf == CKD_SHA512_KDF)
|
|
return sftk_compute_ANSI_X9_63_kdf(key, key_len, SharedSecret, SharedInfo,
|
|
SharedInfoLen, SHA512_HashBuf, SHA512_LENGTH);
|
|
else
|
|
return CKR_MECHANISM_INVALID;
|
|
}
|
|
|
|
/*
|
|
* Handle the derive from a block encryption cipher
|
|
*/
|
|
CK_RV
|
|
sftk_DeriveEncrypt(SFTKCipher encrypt, void *cipherInfo,
|
|
int blockSize, SFTKObject *key, CK_ULONG keySize,
|
|
unsigned char *data, CK_ULONG len)
|
|
{
|
|
/* large enough for a 512-bit key */
|
|
unsigned char tmpdata[SFTK_MAX_DERIVE_KEY_SIZE];
|
|
SECStatus rv;
|
|
unsigned int outLen;
|
|
CK_RV crv;
|
|
|
|
if ((len % blockSize) != 0) {
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
if (len > SFTK_MAX_DERIVE_KEY_SIZE) {
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
if (keySize && (len < keySize)) {
|
|
return CKR_MECHANISM_PARAM_INVALID;
|
|
}
|
|
if (keySize == 0) {
|
|
keySize = len;
|
|
}
|
|
|
|
rv = (*encrypt)(cipherInfo, &tmpdata, &outLen, len, data, len);
|
|
if (rv != SECSuccess) {
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
return crv;
|
|
}
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, tmpdata, keySize);
|
|
return crv;
|
|
}
|
|
|
|
/*
|
|
* SSL Key generation given pre master secret
|
|
*/
|
|
#define NUM_MIXERS 9
|
|
static const char *const mixers[NUM_MIXERS] = {
|
|
"A",
|
|
"BB",
|
|
"CCC",
|
|
"DDDD",
|
|
"EEEEE",
|
|
"FFFFFF",
|
|
"GGGGGGG",
|
|
"HHHHHHHH",
|
|
"IIIIIIIII"
|
|
};
|
|
#define SSL3_PMS_LENGTH 48
|
|
#define SSL3_MASTER_SECRET_LENGTH 48
|
|
#define SSL3_RANDOM_LENGTH 32
|
|
|
|
/* NSC_DeriveKey derives a key from a base key, creating a new key object. */
|
|
CK_RV
|
|
NSC_DeriveKey(CK_SESSION_HANDLE hSession,
|
|
CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hBaseKey,
|
|
CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulAttributeCount,
|
|
CK_OBJECT_HANDLE_PTR phKey)
|
|
{
|
|
SFTKSession *session;
|
|
SFTKSlot *slot = sftk_SlotFromSessionHandle(hSession);
|
|
SFTKObject *key;
|
|
SFTKObject *sourceKey;
|
|
SFTKAttribute *att = NULL;
|
|
SFTKAttribute *att2 = NULL;
|
|
unsigned char *buf;
|
|
SHA1Context *sha;
|
|
MD5Context *md5;
|
|
MD2Context *md2;
|
|
CK_ULONG macSize;
|
|
CK_ULONG tmpKeySize;
|
|
CK_ULONG IVSize;
|
|
CK_ULONG keySize = 0;
|
|
CK_RV crv = CKR_OK;
|
|
CK_BBOOL cktrue = CK_TRUE;
|
|
CK_KEY_TYPE keyType = CKK_GENERIC_SECRET;
|
|
CK_OBJECT_CLASS classType = CKO_SECRET_KEY;
|
|
CK_KEY_DERIVATION_STRING_DATA *stringPtr;
|
|
CK_MECHANISM_TYPE mechanism = pMechanism->mechanism;
|
|
PRBool isTLS = PR_FALSE;
|
|
PRBool isDH = PR_FALSE;
|
|
HASH_HashType tlsPrfHash = HASH_AlgNULL;
|
|
SECStatus rv;
|
|
int i;
|
|
unsigned int outLen;
|
|
unsigned char sha_out[SHA1_LENGTH];
|
|
unsigned char key_block[NUM_MIXERS * SFTK_MAX_MAC_LENGTH];
|
|
PRBool isFIPS;
|
|
HASH_HashType hashType;
|
|
PRBool extractValue = PR_TRUE;
|
|
|
|
CHECK_FORK();
|
|
|
|
if (!slot) {
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
/*
|
|
* now lets create an object to hang the attributes off of
|
|
*/
|
|
if (phKey)
|
|
*phKey = CK_INVALID_HANDLE;
|
|
|
|
key = sftk_NewObject(slot); /* fill in the handle later */
|
|
if (key == NULL) {
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
isFIPS = (slot->slotID == FIPS_SLOT_ID);
|
|
|
|
/*
|
|
* load the template values into the object
|
|
*/
|
|
for (i = 0; i < (int)ulAttributeCount; i++) {
|
|
crv = sftk_AddAttributeType(key, sftk_attr_expand(&pTemplate[i]));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
if (pTemplate[i].type == CKA_KEY_TYPE) {
|
|
keyType = *(CK_KEY_TYPE *)pTemplate[i].pValue;
|
|
}
|
|
if (pTemplate[i].type == CKA_VALUE_LEN) {
|
|
keySize = *(CK_ULONG *)pTemplate[i].pValue;
|
|
}
|
|
}
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
if (keySize == 0) {
|
|
keySize = sftk_MapKeySize(keyType);
|
|
}
|
|
|
|
switch (mechanism) {
|
|
case CKM_NSS_JPAKE_ROUND2_SHA1: /* fall through */
|
|
case CKM_NSS_JPAKE_ROUND2_SHA256: /* fall through */
|
|
case CKM_NSS_JPAKE_ROUND2_SHA384: /* fall through */
|
|
case CKM_NSS_JPAKE_ROUND2_SHA512:
|
|
extractValue = PR_FALSE;
|
|
classType = CKO_PRIVATE_KEY;
|
|
break;
|
|
case CKM_NSS_JPAKE_FINAL_SHA1: /* fall through */
|
|
case CKM_NSS_JPAKE_FINAL_SHA256: /* fall through */
|
|
case CKM_NSS_JPAKE_FINAL_SHA384: /* fall through */
|
|
case CKM_NSS_JPAKE_FINAL_SHA512:
|
|
extractValue = PR_FALSE;
|
|
/* fall through */
|
|
default:
|
|
classType = CKO_SECRET_KEY;
|
|
}
|
|
|
|
crv = sftk_forceAttribute(key, CKA_CLASS, &classType, sizeof(classType));
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
/* look up the base key we're deriving with */
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL) {
|
|
sftk_FreeObject(key);
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
}
|
|
|
|
sourceKey = sftk_ObjectFromHandle(hBaseKey, session);
|
|
sftk_FreeSession(session);
|
|
if (sourceKey == NULL) {
|
|
sftk_FreeObject(key);
|
|
return CKR_KEY_HANDLE_INVALID;
|
|
}
|
|
|
|
if (extractValue) {
|
|
/* get the value of the base key */
|
|
att = sftk_FindAttribute(sourceKey, CKA_VALUE);
|
|
if (att == NULL) {
|
|
sftk_FreeObject(key);
|
|
sftk_FreeObject(sourceKey);
|
|
return CKR_KEY_HANDLE_INVALID;
|
|
}
|
|
}
|
|
|
|
switch (mechanism) {
|
|
/*
|
|
* generate the master secret
|
|
*/
|
|
case CKM_TLS12_MASTER_KEY_DERIVE:
|
|
case CKM_TLS12_MASTER_KEY_DERIVE_DH:
|
|
case CKM_NSS_TLS_MASTER_KEY_DERIVE_SHA256:
|
|
case CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256:
|
|
case CKM_TLS_MASTER_KEY_DERIVE:
|
|
case CKM_TLS_MASTER_KEY_DERIVE_DH:
|
|
case CKM_SSL3_MASTER_KEY_DERIVE:
|
|
case CKM_SSL3_MASTER_KEY_DERIVE_DH: {
|
|
CK_SSL3_MASTER_KEY_DERIVE_PARAMS *ssl3_master;
|
|
SSL3RSAPreMasterSecret *rsa_pms;
|
|
unsigned char crsrdata[SSL3_RANDOM_LENGTH * 2];
|
|
|
|
if ((mechanism == CKM_TLS12_MASTER_KEY_DERIVE) ||
|
|
(mechanism == CKM_TLS12_MASTER_KEY_DERIVE_DH)) {
|
|
CK_TLS12_MASTER_KEY_DERIVE_PARAMS *tls12_master =
|
|
(CK_TLS12_MASTER_KEY_DERIVE_PARAMS *)pMechanism->pParameter;
|
|
tlsPrfHash = GetHashTypeFromMechanism(tls12_master->prfHashMechanism);
|
|
if (tlsPrfHash == HASH_AlgNULL) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
} else if ((mechanism == CKM_NSS_TLS_MASTER_KEY_DERIVE_SHA256) ||
|
|
(mechanism == CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256)) {
|
|
tlsPrfHash = HASH_AlgSHA256;
|
|
}
|
|
|
|
if ((mechanism != CKM_SSL3_MASTER_KEY_DERIVE) &&
|
|
(mechanism != CKM_SSL3_MASTER_KEY_DERIVE_DH)) {
|
|
isTLS = PR_TRUE;
|
|
}
|
|
if ((mechanism == CKM_SSL3_MASTER_KEY_DERIVE_DH) ||
|
|
(mechanism == CKM_TLS_MASTER_KEY_DERIVE_DH) ||
|
|
(mechanism == CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256) ||
|
|
(mechanism == CKM_TLS12_MASTER_KEY_DERIVE_DH)) {
|
|
isDH = PR_TRUE;
|
|
}
|
|
|
|
/* first do the consistency checks */
|
|
if (!isDH && (att->attrib.ulValueLen != SSL3_PMS_LENGTH)) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att2 = sftk_FindAttribute(sourceKey, CKA_KEY_TYPE);
|
|
if ((att2 == NULL) || (*(CK_KEY_TYPE *)att2->attrib.pValue !=
|
|
CKK_GENERIC_SECRET)) {
|
|
if (att2)
|
|
sftk_FreeAttribute(att2);
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
sftk_FreeAttribute(att2);
|
|
if (keyType != CKK_GENERIC_SECRET) {
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
if ((keySize != 0) && (keySize != SSL3_MASTER_SECRET_LENGTH)) {
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
|
|
/* finally do the key gen */
|
|
ssl3_master = (CK_SSL3_MASTER_KEY_DERIVE_PARAMS *)
|
|
pMechanism->pParameter;
|
|
|
|
PORT_Memcpy(crsrdata,
|
|
ssl3_master->RandomInfo.pClientRandom, SSL3_RANDOM_LENGTH);
|
|
PORT_Memcpy(crsrdata + SSL3_RANDOM_LENGTH,
|
|
ssl3_master->RandomInfo.pServerRandom, SSL3_RANDOM_LENGTH);
|
|
|
|
if (ssl3_master->pVersion) {
|
|
SFTKSessionObject *sessKey = sftk_narrowToSessionObject(key);
|
|
rsa_pms = (SSL3RSAPreMasterSecret *)att->attrib.pValue;
|
|
/* don't leak more key material then necessary for SSL to work */
|
|
if ((sessKey == NULL) || sessKey->wasDerived) {
|
|
ssl3_master->pVersion->major = 0xff;
|
|
ssl3_master->pVersion->minor = 0xff;
|
|
} else {
|
|
ssl3_master->pVersion->major = rsa_pms->client_version[0];
|
|
ssl3_master->pVersion->minor = rsa_pms->client_version[1];
|
|
}
|
|
}
|
|
if (ssl3_master->RandomInfo.ulClientRandomLen != SSL3_RANDOM_LENGTH) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
if (ssl3_master->RandomInfo.ulServerRandomLen != SSL3_RANDOM_LENGTH) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
|
|
if (isTLS) {
|
|
SECStatus status;
|
|
SECItem crsr = { siBuffer, NULL, 0 };
|
|
SECItem master = { siBuffer, NULL, 0 };
|
|
SECItem pms = { siBuffer, NULL, 0 };
|
|
|
|
crsr.data = crsrdata;
|
|
crsr.len = sizeof crsrdata;
|
|
master.data = key_block;
|
|
master.len = SSL3_MASTER_SECRET_LENGTH;
|
|
pms.data = (unsigned char *)att->attrib.pValue;
|
|
pms.len = att->attrib.ulValueLen;
|
|
|
|
if (tlsPrfHash != HASH_AlgNULL) {
|
|
status = TLS_P_hash(tlsPrfHash, &pms, "master secret",
|
|
&crsr, &master, isFIPS);
|
|
} else {
|
|
status = TLS_PRF(&pms, "master secret", &crsr, &master, isFIPS);
|
|
}
|
|
if (status != SECSuccess) {
|
|
crv = CKR_FUNCTION_FAILED;
|
|
break;
|
|
}
|
|
} else {
|
|
/* now allocate the hash contexts */
|
|
md5 = MD5_NewContext();
|
|
if (md5 == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
sha = SHA1_NewContext();
|
|
if (sha == NULL) {
|
|
PORT_Free(md5);
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
for (i = 0; i < 3; i++) {
|
|
SHA1_Begin(sha);
|
|
SHA1_Update(sha, (unsigned char *)mixers[i], strlen(mixers[i]));
|
|
SHA1_Update(sha, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
SHA1_Update(sha, crsrdata, sizeof crsrdata);
|
|
SHA1_End(sha, sha_out, &outLen, SHA1_LENGTH);
|
|
PORT_Assert(outLen == SHA1_LENGTH);
|
|
|
|
MD5_Begin(md5);
|
|
MD5_Update(md5, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
MD5_Update(md5, sha_out, outLen);
|
|
MD5_End(md5, &key_block[i * MD5_LENGTH], &outLen, MD5_LENGTH);
|
|
PORT_Assert(outLen == MD5_LENGTH);
|
|
}
|
|
PORT_Free(md5);
|
|
PORT_Free(sha);
|
|
}
|
|
|
|
/* store the results */
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, SSL3_MASTER_SECRET_LENGTH);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
keyType = CKK_GENERIC_SECRET;
|
|
crv = sftk_forceAttribute(key, CKA_KEY_TYPE, &keyType, sizeof(keyType));
|
|
if (isTLS) {
|
|
/* TLS's master secret is used to "sign" finished msgs with PRF. */
|
|
/* XXX This seems like a hack. But SFTK_Derive only accepts
|
|
* one "operation" argument. */
|
|
crv = sftk_forceAttribute(key, CKA_SIGN, &cktrue, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_forceAttribute(key, CKA_VERIFY, &cktrue, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
/* While we're here, we might as well force this, too. */
|
|
crv = sftk_forceAttribute(key, CKA_DERIVE, &cktrue, sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK)
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* Extended master key derivation [draft-ietf-tls-session-hash] */
|
|
case CKM_NSS_TLS_EXTENDED_MASTER_KEY_DERIVE:
|
|
case CKM_NSS_TLS_EXTENDED_MASTER_KEY_DERIVE_DH: {
|
|
CK_NSS_TLS_EXTENDED_MASTER_KEY_DERIVE_PARAMS *ems_params;
|
|
SSL3RSAPreMasterSecret *rsa_pms;
|
|
SECStatus status;
|
|
SECItem pms = { siBuffer, NULL, 0 };
|
|
SECItem seed = { siBuffer, NULL, 0 };
|
|
SECItem master = { siBuffer, NULL, 0 };
|
|
|
|
ems_params = (CK_NSS_TLS_EXTENDED_MASTER_KEY_DERIVE_PARAMS *)
|
|
pMechanism->pParameter;
|
|
|
|
/* First do the consistency checks */
|
|
if ((mechanism == CKM_NSS_TLS_EXTENDED_MASTER_KEY_DERIVE) &&
|
|
(att->attrib.ulValueLen != SSL3_PMS_LENGTH)) {
|
|
crv = CKR_KEY_TYPE_INCONSISTENT;
|
|
break;
|
|
}
|
|
att2 = sftk_FindAttribute(sourceKey, CKA_KEY_TYPE);
|
|
if ((att2 == NULL) ||
|
|
(*(CK_KEY_TYPE *)att2->attrib.pValue != CKK_GENERIC_SECRET)) {
|
|
if (att2)
|
|
sftk_FreeAttribute(att2);
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
sftk_FreeAttribute(att2);
|
|
if (keyType != CKK_GENERIC_SECRET) {
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
if ((keySize != 0) && (keySize != SSL3_MASTER_SECRET_LENGTH)) {
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
|
|
/* Do the key derivation */
|
|
pms.data = (unsigned char *)att->attrib.pValue;
|
|
pms.len = att->attrib.ulValueLen;
|
|
seed.data = ems_params->pSessionHash;
|
|
seed.len = ems_params->ulSessionHashLen;
|
|
master.data = key_block;
|
|
master.len = SSL3_MASTER_SECRET_LENGTH;
|
|
if (ems_params->prfHashMechanism == CKM_TLS_PRF) {
|
|
/*
|
|
* In this case, the session hash is the concatenation of SHA-1
|
|
* and MD5, so it should be 36 bytes long.
|
|
*/
|
|
if (seed.len != MD5_LENGTH + SHA1_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
|
|
status = TLS_PRF(&pms, "extended master secret",
|
|
&seed, &master, isFIPS);
|
|
} else {
|
|
const SECHashObject *hashObj;
|
|
|
|
tlsPrfHash = GetHashTypeFromMechanism(ems_params->prfHashMechanism);
|
|
if (tlsPrfHash == HASH_AlgNULL) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
|
|
hashObj = HASH_GetRawHashObject(tlsPrfHash);
|
|
if (seed.len != hashObj->length) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
|
|
status = TLS_P_hash(tlsPrfHash, &pms, "extended master secret",
|
|
&seed, &master, isFIPS);
|
|
}
|
|
if (status != SECSuccess) {
|
|
crv = CKR_FUNCTION_FAILED;
|
|
break;
|
|
}
|
|
|
|
/* Reflect the version if required */
|
|
if (ems_params->pVersion) {
|
|
SFTKSessionObject *sessKey = sftk_narrowToSessionObject(key);
|
|
rsa_pms = (SSL3RSAPreMasterSecret *)att->attrib.pValue;
|
|
/* don't leak more key material than necessary for SSL to work */
|
|
if ((sessKey == NULL) || sessKey->wasDerived) {
|
|
ems_params->pVersion->major = 0xff;
|
|
ems_params->pVersion->minor = 0xff;
|
|
} else {
|
|
ems_params->pVersion->major = rsa_pms->client_version[0];
|
|
ems_params->pVersion->minor = rsa_pms->client_version[1];
|
|
}
|
|
}
|
|
|
|
/* Store the results */
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block,
|
|
SSL3_MASTER_SECRET_LENGTH);
|
|
break;
|
|
}
|
|
|
|
case CKM_TLS12_KEY_AND_MAC_DERIVE:
|
|
case CKM_NSS_TLS_KEY_AND_MAC_DERIVE_SHA256:
|
|
case CKM_TLS_KEY_AND_MAC_DERIVE:
|
|
case CKM_SSL3_KEY_AND_MAC_DERIVE: {
|
|
CK_SSL3_KEY_MAT_PARAMS *ssl3_keys;
|
|
CK_SSL3_KEY_MAT_OUT *ssl3_keys_out;
|
|
CK_ULONG effKeySize;
|
|
unsigned int block_needed;
|
|
unsigned char srcrdata[SSL3_RANDOM_LENGTH * 2];
|
|
unsigned char crsrdata[SSL3_RANDOM_LENGTH * 2];
|
|
|
|
if (mechanism == CKM_TLS12_KEY_AND_MAC_DERIVE) {
|
|
CK_TLS12_KEY_MAT_PARAMS *tls12_keys =
|
|
(CK_TLS12_KEY_MAT_PARAMS *)pMechanism->pParameter;
|
|
tlsPrfHash = GetHashTypeFromMechanism(tls12_keys->prfHashMechanism);
|
|
if (tlsPrfHash == HASH_AlgNULL) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
} else if (mechanism == CKM_NSS_TLS_KEY_AND_MAC_DERIVE_SHA256) {
|
|
tlsPrfHash = HASH_AlgSHA256;
|
|
}
|
|
|
|
if (mechanism != CKM_SSL3_KEY_AND_MAC_DERIVE) {
|
|
isTLS = PR_TRUE;
|
|
}
|
|
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
if (att->attrib.ulValueLen != SSL3_MASTER_SECRET_LENGTH) {
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
att2 = sftk_FindAttribute(sourceKey, CKA_KEY_TYPE);
|
|
if ((att2 == NULL) || (*(CK_KEY_TYPE *)att2->attrib.pValue !=
|
|
CKK_GENERIC_SECRET)) {
|
|
if (att2)
|
|
sftk_FreeAttribute(att2);
|
|
crv = CKR_KEY_FUNCTION_NOT_PERMITTED;
|
|
break;
|
|
}
|
|
sftk_FreeAttribute(att2);
|
|
md5 = MD5_NewContext();
|
|
if (md5 == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
sha = SHA1_NewContext();
|
|
if (sha == NULL) {
|
|
MD5_DestroyContext(md5, PR_TRUE);
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
ssl3_keys = (CK_SSL3_KEY_MAT_PARAMS *)pMechanism->pParameter;
|
|
|
|
PORT_Memcpy(srcrdata,
|
|
ssl3_keys->RandomInfo.pServerRandom, SSL3_RANDOM_LENGTH);
|
|
PORT_Memcpy(srcrdata + SSL3_RANDOM_LENGTH,
|
|
ssl3_keys->RandomInfo.pClientRandom, SSL3_RANDOM_LENGTH);
|
|
|
|
PORT_Memcpy(crsrdata,
|
|
ssl3_keys->RandomInfo.pClientRandom, SSL3_RANDOM_LENGTH);
|
|
PORT_Memcpy(crsrdata + SSL3_RANDOM_LENGTH,
|
|
ssl3_keys->RandomInfo.pServerRandom, SSL3_RANDOM_LENGTH);
|
|
|
|
/*
|
|
* clear out our returned keys so we can recover on failure
|
|
*/
|
|
ssl3_keys_out = ssl3_keys->pReturnedKeyMaterial;
|
|
ssl3_keys_out->hClientMacSecret = CK_INVALID_HANDLE;
|
|
ssl3_keys_out->hServerMacSecret = CK_INVALID_HANDLE;
|
|
ssl3_keys_out->hClientKey = CK_INVALID_HANDLE;
|
|
ssl3_keys_out->hServerKey = CK_INVALID_HANDLE;
|
|
|
|
/*
|
|
* How much key material do we need?
|
|
*/
|
|
macSize = ssl3_keys->ulMacSizeInBits / 8;
|
|
effKeySize = ssl3_keys->ulKeySizeInBits / 8;
|
|
IVSize = ssl3_keys->ulIVSizeInBits / 8;
|
|
if (keySize == 0) {
|
|
effKeySize = keySize;
|
|
}
|
|
|
|
/* bIsExport must be false. */
|
|
if (ssl3_keys->bIsExport) {
|
|
MD5_DestroyContext(md5, PR_TRUE);
|
|
SHA1_DestroyContext(sha, PR_TRUE);
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
|
|
block_needed = 2 * (macSize + effKeySize + IVSize);
|
|
PORT_Assert(block_needed <= sizeof key_block);
|
|
if (block_needed > sizeof key_block)
|
|
block_needed = sizeof key_block;
|
|
|
|
/*
|
|
* generate the key material: This looks amazingly similar to the
|
|
* PMS code, and is clearly crying out for a function to provide it.
|
|
*/
|
|
if (isTLS) {
|
|
SECStatus status;
|
|
SECItem srcr = { siBuffer, NULL, 0 };
|
|
SECItem keyblk = { siBuffer, NULL, 0 };
|
|
SECItem master = { siBuffer, NULL, 0 };
|
|
|
|
srcr.data = srcrdata;
|
|
srcr.len = sizeof srcrdata;
|
|
keyblk.data = key_block;
|
|
keyblk.len = block_needed;
|
|
master.data = (unsigned char *)att->attrib.pValue;
|
|
master.len = att->attrib.ulValueLen;
|
|
|
|
if (tlsPrfHash != HASH_AlgNULL) {
|
|
status = TLS_P_hash(tlsPrfHash, &master, "key expansion",
|
|
&srcr, &keyblk, isFIPS);
|
|
} else {
|
|
status = TLS_PRF(&master, "key expansion", &srcr, &keyblk,
|
|
isFIPS);
|
|
}
|
|
if (status != SECSuccess) {
|
|
goto key_and_mac_derive_fail;
|
|
}
|
|
} else {
|
|
unsigned int block_bytes = 0;
|
|
/* key_block =
|
|
* MD5(master_secret + SHA('A' + master_secret +
|
|
* ServerHello.random + ClientHello.random)) +
|
|
* MD5(master_secret + SHA('BB' + master_secret +
|
|
* ServerHello.random + ClientHello.random)) +
|
|
* MD5(master_secret + SHA('CCC' + master_secret +
|
|
* ServerHello.random + ClientHello.random)) +
|
|
* [...];
|
|
*/
|
|
for (i = 0; i < NUM_MIXERS && block_bytes < block_needed; i++) {
|
|
SHA1_Begin(sha);
|
|
SHA1_Update(sha, (unsigned char *)mixers[i], strlen(mixers[i]));
|
|
SHA1_Update(sha, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
SHA1_Update(sha, srcrdata, sizeof srcrdata);
|
|
SHA1_End(sha, sha_out, &outLen, SHA1_LENGTH);
|
|
PORT_Assert(outLen == SHA1_LENGTH);
|
|
MD5_Begin(md5);
|
|
MD5_Update(md5, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
MD5_Update(md5, sha_out, outLen);
|
|
MD5_End(md5, &key_block[i * MD5_LENGTH], &outLen, MD5_LENGTH);
|
|
PORT_Assert(outLen == MD5_LENGTH);
|
|
block_bytes += outLen;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Put the key material where it goes.
|
|
*/
|
|
i = 0; /* now shows how much consumed */
|
|
|
|
/*
|
|
* The key_block is partitioned as follows:
|
|
* client_write_MAC_secret[CipherSpec.hash_size]
|
|
*/
|
|
crv = sftk_buildSSLKey(hSession, key, PR_TRUE, &key_block[i], macSize,
|
|
&ssl3_keys_out->hClientMacSecret);
|
|
if (crv != CKR_OK)
|
|
goto key_and_mac_derive_fail;
|
|
|
|
i += macSize;
|
|
|
|
/*
|
|
* server_write_MAC_secret[CipherSpec.hash_size]
|
|
*/
|
|
crv = sftk_buildSSLKey(hSession, key, PR_TRUE, &key_block[i], macSize,
|
|
&ssl3_keys_out->hServerMacSecret);
|
|
if (crv != CKR_OK) {
|
|
goto key_and_mac_derive_fail;
|
|
}
|
|
i += macSize;
|
|
|
|
if (keySize) {
|
|
/*
|
|
** Generate Domestic write keys and IVs.
|
|
** client_write_key[CipherSpec.key_material]
|
|
*/
|
|
crv = sftk_buildSSLKey(hSession, key, PR_FALSE, &key_block[i],
|
|
keySize, &ssl3_keys_out->hClientKey);
|
|
if (crv != CKR_OK) {
|
|
goto key_and_mac_derive_fail;
|
|
}
|
|
i += keySize;
|
|
|
|
/*
|
|
** server_write_key[CipherSpec.key_material]
|
|
*/
|
|
crv = sftk_buildSSLKey(hSession, key, PR_FALSE, &key_block[i],
|
|
keySize, &ssl3_keys_out->hServerKey);
|
|
if (crv != CKR_OK) {
|
|
goto key_and_mac_derive_fail;
|
|
}
|
|
i += keySize;
|
|
|
|
/*
|
|
** client_write_IV[CipherSpec.IV_size]
|
|
*/
|
|
if (IVSize > 0) {
|
|
PORT_Memcpy(ssl3_keys_out->pIVClient,
|
|
&key_block[i], IVSize);
|
|
i += IVSize;
|
|
}
|
|
|
|
/*
|
|
** server_write_IV[CipherSpec.IV_size]
|
|
*/
|
|
if (IVSize > 0) {
|
|
PORT_Memcpy(ssl3_keys_out->pIVServer,
|
|
&key_block[i], IVSize);
|
|
i += IVSize;
|
|
}
|
|
PORT_Assert(i <= sizeof key_block);
|
|
}
|
|
|
|
crv = CKR_OK;
|
|
|
|
if (0) {
|
|
key_and_mac_derive_fail:
|
|
if (crv == CKR_OK)
|
|
crv = CKR_FUNCTION_FAILED;
|
|
sftk_freeSSLKeys(hSession, ssl3_keys_out);
|
|
}
|
|
MD5_DestroyContext(md5, PR_TRUE);
|
|
SHA1_DestroyContext(sha, PR_TRUE);
|
|
sftk_FreeObject(key);
|
|
key = NULL;
|
|
break;
|
|
}
|
|
|
|
case CKM_DES3_ECB_ENCRYPT_DATA:
|
|
case CKM_DES3_CBC_ENCRYPT_DATA: {
|
|
void *cipherInfo;
|
|
unsigned char des3key[MAX_DES3_KEY_SIZE];
|
|
CK_DES_CBC_ENCRYPT_DATA_PARAMS *desEncryptPtr;
|
|
int mode;
|
|
unsigned char *iv;
|
|
unsigned char *data;
|
|
CK_ULONG len;
|
|
|
|
if (mechanism == CKM_DES3_ECB_ENCRYPT_DATA) {
|
|
stringPtr = (CK_KEY_DERIVATION_STRING_DATA *)
|
|
pMechanism->pParameter;
|
|
mode = NSS_DES_EDE3;
|
|
iv = NULL;
|
|
data = stringPtr->pData;
|
|
len = stringPtr->ulLen;
|
|
} else {
|
|
mode = NSS_DES_EDE3_CBC;
|
|
desEncryptPtr =
|
|
(CK_DES_CBC_ENCRYPT_DATA_PARAMS *)
|
|
pMechanism->pParameter;
|
|
iv = desEncryptPtr->iv;
|
|
data = desEncryptPtr->pData;
|
|
len = desEncryptPtr->length;
|
|
}
|
|
if (att->attrib.ulValueLen == 16) {
|
|
PORT_Memcpy(des3key, att->attrib.pValue, 16);
|
|
PORT_Memcpy(des3key + 16, des3key, 8);
|
|
} else if (att->attrib.ulValueLen == 24) {
|
|
PORT_Memcpy(des3key, att->attrib.pValue, 24);
|
|
} else {
|
|
crv = CKR_KEY_SIZE_RANGE;
|
|
break;
|
|
}
|
|
cipherInfo = DES_CreateContext(des3key, iv, mode, PR_TRUE);
|
|
PORT_Memset(des3key, 0, 24);
|
|
if (cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
crv = sftk_DeriveEncrypt((SFTKCipher)DES_Encrypt,
|
|
cipherInfo, 8, key, keySize,
|
|
data, len);
|
|
DES_DestroyContext(cipherInfo, PR_TRUE);
|
|
break;
|
|
}
|
|
|
|
case CKM_AES_ECB_ENCRYPT_DATA:
|
|
case CKM_AES_CBC_ENCRYPT_DATA: {
|
|
void *cipherInfo;
|
|
CK_AES_CBC_ENCRYPT_DATA_PARAMS *aesEncryptPtr;
|
|
int mode;
|
|
unsigned char *iv;
|
|
unsigned char *data;
|
|
CK_ULONG len;
|
|
|
|
if (mechanism == CKM_AES_ECB_ENCRYPT_DATA) {
|
|
mode = NSS_AES;
|
|
iv = NULL;
|
|
stringPtr = (CK_KEY_DERIVATION_STRING_DATA *)pMechanism->pParameter;
|
|
data = stringPtr->pData;
|
|
len = stringPtr->ulLen;
|
|
} else {
|
|
aesEncryptPtr =
|
|
(CK_AES_CBC_ENCRYPT_DATA_PARAMS *)pMechanism->pParameter;
|
|
mode = NSS_AES_CBC;
|
|
iv = aesEncryptPtr->iv;
|
|
data = aesEncryptPtr->pData;
|
|
len = aesEncryptPtr->length;
|
|
}
|
|
|
|
cipherInfo = AES_CreateContext((unsigned char *)att->attrib.pValue,
|
|
iv, mode, PR_TRUE,
|
|
att->attrib.ulValueLen, 16);
|
|
if (cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
crv = sftk_DeriveEncrypt((SFTKCipher)AES_Encrypt,
|
|
cipherInfo, 16, key, keySize,
|
|
data, len);
|
|
AES_DestroyContext(cipherInfo, PR_TRUE);
|
|
break;
|
|
}
|
|
|
|
case CKM_CAMELLIA_ECB_ENCRYPT_DATA:
|
|
case CKM_CAMELLIA_CBC_ENCRYPT_DATA: {
|
|
void *cipherInfo;
|
|
CK_AES_CBC_ENCRYPT_DATA_PARAMS *aesEncryptPtr;
|
|
int mode;
|
|
unsigned char *iv;
|
|
unsigned char *data;
|
|
CK_ULONG len;
|
|
|
|
if (mechanism == CKM_CAMELLIA_ECB_ENCRYPT_DATA) {
|
|
stringPtr = (CK_KEY_DERIVATION_STRING_DATA *)
|
|
pMechanism->pParameter;
|
|
aesEncryptPtr = NULL;
|
|
mode = NSS_CAMELLIA;
|
|
data = stringPtr->pData;
|
|
len = stringPtr->ulLen;
|
|
iv = NULL;
|
|
} else {
|
|
stringPtr = NULL;
|
|
aesEncryptPtr = (CK_AES_CBC_ENCRYPT_DATA_PARAMS *)
|
|
pMechanism->pParameter;
|
|
mode = NSS_CAMELLIA_CBC;
|
|
iv = aesEncryptPtr->iv;
|
|
data = aesEncryptPtr->pData;
|
|
len = aesEncryptPtr->length;
|
|
}
|
|
|
|
cipherInfo = Camellia_CreateContext((unsigned char *)att->attrib.pValue,
|
|
iv, mode, PR_TRUE,
|
|
att->attrib.ulValueLen);
|
|
if (cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
crv = sftk_DeriveEncrypt((SFTKCipher)Camellia_Encrypt,
|
|
cipherInfo, 16, key, keySize,
|
|
data, len);
|
|
Camellia_DestroyContext(cipherInfo, PR_TRUE);
|
|
break;
|
|
}
|
|
|
|
case CKM_SEED_ECB_ENCRYPT_DATA:
|
|
case CKM_SEED_CBC_ENCRYPT_DATA: {
|
|
void *cipherInfo;
|
|
CK_AES_CBC_ENCRYPT_DATA_PARAMS *aesEncryptPtr;
|
|
int mode;
|
|
unsigned char *iv;
|
|
unsigned char *data;
|
|
CK_ULONG len;
|
|
|
|
if (mechanism == CKM_SEED_ECB_ENCRYPT_DATA) {
|
|
mode = NSS_SEED;
|
|
stringPtr = (CK_KEY_DERIVATION_STRING_DATA *)
|
|
pMechanism->pParameter;
|
|
aesEncryptPtr = NULL;
|
|
data = stringPtr->pData;
|
|
len = stringPtr->ulLen;
|
|
iv = NULL;
|
|
} else {
|
|
mode = NSS_SEED_CBC;
|
|
aesEncryptPtr = (CK_AES_CBC_ENCRYPT_DATA_PARAMS *)
|
|
pMechanism->pParameter;
|
|
iv = aesEncryptPtr->iv;
|
|
data = aesEncryptPtr->pData;
|
|
len = aesEncryptPtr->length;
|
|
}
|
|
|
|
cipherInfo = SEED_CreateContext((unsigned char *)att->attrib.pValue,
|
|
iv, mode, PR_TRUE);
|
|
if (cipherInfo == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
crv = sftk_DeriveEncrypt((SFTKCipher)SEED_Encrypt,
|
|
cipherInfo, 16, key, keySize,
|
|
data, len);
|
|
SEED_DestroyContext(cipherInfo, PR_TRUE);
|
|
break;
|
|
}
|
|
|
|
case CKM_CONCATENATE_BASE_AND_KEY: {
|
|
SFTKObject *newKey;
|
|
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL) {
|
|
crv = CKR_SESSION_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
|
|
newKey = sftk_ObjectFromHandle(*(CK_OBJECT_HANDLE *)
|
|
pMechanism->pParameter,
|
|
session);
|
|
sftk_FreeSession(session);
|
|
if (newKey == NULL) {
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
|
|
if (sftk_isTrue(newKey, CKA_SENSITIVE)) {
|
|
crv = sftk_forceAttribute(newKey, CKA_SENSITIVE, &cktrue,
|
|
sizeof(CK_BBOOL));
|
|
if (crv != CKR_OK) {
|
|
sftk_FreeObject(newKey);
|
|
break;
|
|
}
|
|
}
|
|
|
|
att2 = sftk_FindAttribute(newKey, CKA_VALUE);
|
|
if (att2 == NULL) {
|
|
sftk_FreeObject(newKey);
|
|
crv = CKR_KEY_HANDLE_INVALID;
|
|
break;
|
|
}
|
|
tmpKeySize = att->attrib.ulValueLen + att2->attrib.ulValueLen;
|
|
if (keySize == 0)
|
|
keySize = tmpKeySize;
|
|
if (keySize > tmpKeySize) {
|
|
sftk_FreeObject(newKey);
|
|
sftk_FreeAttribute(att2);
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
buf = (unsigned char *)PORT_Alloc(tmpKeySize);
|
|
if (buf == NULL) {
|
|
sftk_FreeAttribute(att2);
|
|
sftk_FreeObject(newKey);
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
|
|
PORT_Memcpy(buf, att->attrib.pValue, att->attrib.ulValueLen);
|
|
PORT_Memcpy(buf + att->attrib.ulValueLen,
|
|
att2->attrib.pValue, att2->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, buf, keySize);
|
|
PORT_ZFree(buf, tmpKeySize);
|
|
sftk_FreeAttribute(att2);
|
|
sftk_FreeObject(newKey);
|
|
break;
|
|
}
|
|
|
|
case CKM_CONCATENATE_BASE_AND_DATA:
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
stringPtr = (CK_KEY_DERIVATION_STRING_DATA *)pMechanism->pParameter;
|
|
tmpKeySize = att->attrib.ulValueLen + stringPtr->ulLen;
|
|
if (keySize == 0)
|
|
keySize = tmpKeySize;
|
|
if (keySize > tmpKeySize) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
buf = (unsigned char *)PORT_Alloc(tmpKeySize);
|
|
if (buf == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
|
|
PORT_Memcpy(buf, att->attrib.pValue, att->attrib.ulValueLen);
|
|
PORT_Memcpy(buf + att->attrib.ulValueLen, stringPtr->pData,
|
|
stringPtr->ulLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, buf, keySize);
|
|
PORT_ZFree(buf, tmpKeySize);
|
|
break;
|
|
case CKM_CONCATENATE_DATA_AND_BASE:
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
stringPtr = (CK_KEY_DERIVATION_STRING_DATA *)pMechanism->pParameter;
|
|
tmpKeySize = att->attrib.ulValueLen + stringPtr->ulLen;
|
|
if (keySize == 0)
|
|
keySize = tmpKeySize;
|
|
if (keySize > tmpKeySize) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
buf = (unsigned char *)PORT_Alloc(tmpKeySize);
|
|
if (buf == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
|
|
PORT_Memcpy(buf, stringPtr->pData, stringPtr->ulLen);
|
|
PORT_Memcpy(buf + stringPtr->ulLen, att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, buf, keySize);
|
|
PORT_ZFree(buf, tmpKeySize);
|
|
break;
|
|
case CKM_XOR_BASE_AND_DATA:
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
stringPtr = (CK_KEY_DERIVATION_STRING_DATA *)pMechanism->pParameter;
|
|
tmpKeySize = PR_MIN(att->attrib.ulValueLen, stringPtr->ulLen);
|
|
if (keySize == 0)
|
|
keySize = tmpKeySize;
|
|
if (keySize > tmpKeySize) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
buf = (unsigned char *)PORT_Alloc(keySize);
|
|
if (buf == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
|
|
PORT_Memcpy(buf, att->attrib.pValue, keySize);
|
|
for (i = 0; i < (int)keySize; i++) {
|
|
buf[i] ^= stringPtr->pData[i];
|
|
}
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, buf, keySize);
|
|
PORT_ZFree(buf, keySize);
|
|
break;
|
|
|
|
case CKM_EXTRACT_KEY_FROM_KEY: {
|
|
/* the following assumes 8 bits per byte */
|
|
CK_ULONG extract = *(CK_EXTRACT_PARAMS *)pMechanism->pParameter;
|
|
CK_ULONG shift = extract & 0x7; /* extract mod 8 the fast way */
|
|
CK_ULONG offset = extract >> 3; /* extract div 8 the fast way */
|
|
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
if (keySize == 0) {
|
|
crv = CKR_TEMPLATE_INCOMPLETE;
|
|
break;
|
|
}
|
|
/* make sure we have enough bits in the original key */
|
|
if (att->attrib.ulValueLen <
|
|
(offset + keySize + ((shift != 0) ? 1 : 0))) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
buf = (unsigned char *)PORT_Alloc(keySize);
|
|
if (buf == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
|
|
/* copy the bits we need into the new key */
|
|
for (i = 0; i < (int)keySize; i++) {
|
|
unsigned char *value =
|
|
((unsigned char *)att->attrib.pValue) + offset + i;
|
|
if (shift) {
|
|
buf[i] = (value[0] << (shift)) | (value[1] >> (8 - shift));
|
|
} else {
|
|
buf[i] = value[0];
|
|
}
|
|
}
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, buf, keySize);
|
|
PORT_ZFree(buf, keySize);
|
|
break;
|
|
}
|
|
case CKM_MD2_KEY_DERIVATION:
|
|
if (keySize == 0)
|
|
keySize = MD2_LENGTH;
|
|
if (keySize > MD2_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
/* now allocate the hash contexts */
|
|
md2 = MD2_NewContext();
|
|
if (md2 == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
MD2_Begin(md2);
|
|
MD2_Update(md2, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
MD2_End(md2, key_block, &outLen, MD2_LENGTH);
|
|
MD2_DestroyContext(md2, PR_TRUE);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, keySize);
|
|
break;
|
|
case CKM_MD5_KEY_DERIVATION:
|
|
if (keySize == 0)
|
|
keySize = MD5_LENGTH;
|
|
if (keySize > MD5_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
MD5_HashBuf(key_block, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, keySize);
|
|
break;
|
|
case CKM_SHA1_KEY_DERIVATION:
|
|
if (keySize == 0)
|
|
keySize = SHA1_LENGTH;
|
|
if (keySize > SHA1_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
SHA1_HashBuf(key_block, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, keySize);
|
|
break;
|
|
|
|
case CKM_SHA224_KEY_DERIVATION:
|
|
if (keySize == 0)
|
|
keySize = SHA224_LENGTH;
|
|
if (keySize > SHA224_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
SHA224_HashBuf(key_block, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, keySize);
|
|
break;
|
|
|
|
case CKM_SHA256_KEY_DERIVATION:
|
|
if (keySize == 0)
|
|
keySize = SHA256_LENGTH;
|
|
if (keySize > SHA256_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
SHA256_HashBuf(key_block, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, keySize);
|
|
break;
|
|
|
|
case CKM_SHA384_KEY_DERIVATION:
|
|
if (keySize == 0)
|
|
keySize = SHA384_LENGTH;
|
|
if (keySize > SHA384_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
SHA384_HashBuf(key_block, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, keySize);
|
|
break;
|
|
|
|
case CKM_SHA512_KEY_DERIVATION:
|
|
if (keySize == 0)
|
|
keySize = SHA512_LENGTH;
|
|
if (keySize > SHA512_LENGTH) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
SHA512_HashBuf(key_block, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, key_block, keySize);
|
|
break;
|
|
|
|
case CKM_DH_PKCS_DERIVE: {
|
|
SECItem derived, dhPublic;
|
|
SECItem dhPrime, dhValue;
|
|
/* sourceKey - values for the local existing low key */
|
|
/* get prime and value attributes */
|
|
crv = sftk_Attribute2SecItem(NULL, &dhPrime, sourceKey, CKA_PRIME);
|
|
if (crv != SECSuccess)
|
|
break;
|
|
crv = sftk_Attribute2SecItem(NULL, &dhValue, sourceKey, CKA_VALUE);
|
|
if (crv != SECSuccess) {
|
|
PORT_Free(dhPrime.data);
|
|
break;
|
|
}
|
|
|
|
dhPublic.data = pMechanism->pParameter;
|
|
dhPublic.len = pMechanism->ulParameterLen;
|
|
|
|
/* calculate private value - oct */
|
|
rv = DH_Derive(&dhPublic, &dhPrime, &dhValue, &derived, keySize);
|
|
|
|
PORT_Free(dhPrime.data);
|
|
PORT_Free(dhValue.data);
|
|
|
|
if (rv == SECSuccess) {
|
|
sftk_forceAttribute(key, CKA_VALUE, derived.data, derived.len);
|
|
PORT_ZFree(derived.data, derived.len);
|
|
} else
|
|
crv = CKR_HOST_MEMORY;
|
|
|
|
break;
|
|
}
|
|
|
|
case CKM_ECDH1_DERIVE:
|
|
case CKM_ECDH1_COFACTOR_DERIVE: {
|
|
SECItem ecScalar, ecPoint;
|
|
SECItem tmp;
|
|
PRBool withCofactor = PR_FALSE;
|
|
unsigned char *secret;
|
|
unsigned char *keyData = NULL;
|
|
unsigned int secretlen, pubKeyLen;
|
|
CK_ECDH1_DERIVE_PARAMS *mechParams;
|
|
NSSLOWKEYPrivateKey *privKey;
|
|
PLArenaPool *arena = NULL;
|
|
|
|
/* Check mechanism parameters */
|
|
mechParams = (CK_ECDH1_DERIVE_PARAMS *)pMechanism->pParameter;
|
|
if ((pMechanism->ulParameterLen != sizeof(CK_ECDH1_DERIVE_PARAMS)) ||
|
|
((mechParams->kdf == CKD_NULL) &&
|
|
((mechParams->ulSharedDataLen != 0) ||
|
|
(mechParams->pSharedData != NULL)))) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
|
|
privKey = sftk_GetPrivKey(sourceKey, CKK_EC, &crv);
|
|
if (privKey == NULL) {
|
|
break;
|
|
}
|
|
|
|
/* Now we are working with a non-NULL private key */
|
|
SECITEM_CopyItem(NULL, &ecScalar, &privKey->u.ec.privateValue);
|
|
|
|
ecPoint.data = mechParams->pPublicData;
|
|
ecPoint.len = mechParams->ulPublicDataLen;
|
|
|
|
pubKeyLen = EC_GetPointSize(&privKey->u.ec.ecParams);
|
|
|
|
/* if the len is too large, might be an encoded point */
|
|
if (ecPoint.len > pubKeyLen) {
|
|
SECItem newPoint;
|
|
|
|
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
|
|
if (arena == NULL) {
|
|
goto ec_loser;
|
|
}
|
|
|
|
rv = SEC_QuickDERDecodeItem(arena, &newPoint,
|
|
SEC_ASN1_GET(SEC_OctetStringTemplate),
|
|
&ecPoint);
|
|
if (rv != SECSuccess) {
|
|
goto ec_loser;
|
|
}
|
|
ecPoint = newPoint;
|
|
}
|
|
|
|
if (mechanism == CKM_ECDH1_COFACTOR_DERIVE) {
|
|
withCofactor = PR_TRUE;
|
|
}
|
|
|
|
rv = ECDH_Derive(&ecPoint, &privKey->u.ec.ecParams, &ecScalar,
|
|
withCofactor, &tmp);
|
|
PORT_ZFree(ecScalar.data, ecScalar.len);
|
|
ecScalar.data = NULL;
|
|
if (privKey != sourceKey->objectInfo) {
|
|
nsslowkey_DestroyPrivateKey(privKey);
|
|
privKey = NULL;
|
|
}
|
|
if (arena) {
|
|
PORT_FreeArena(arena, PR_FALSE);
|
|
arena = NULL;
|
|
}
|
|
|
|
if (rv != SECSuccess) {
|
|
crv = sftk_MapCryptError(PORT_GetError());
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* apply the kdf function.
|
|
*/
|
|
if (mechParams->kdf == CKD_NULL) {
|
|
/*
|
|
* tmp is the raw data created by ECDH_Derive,
|
|
* secret and secretlen are the values we will
|
|
* eventually pass as our generated key.
|
|
*/
|
|
secret = tmp.data;
|
|
secretlen = tmp.len;
|
|
} else {
|
|
secretlen = keySize;
|
|
crv = sftk_ANSI_X9_63_kdf(&secret, keySize,
|
|
&tmp, mechParams->pSharedData,
|
|
mechParams->ulSharedDataLen, mechParams->kdf);
|
|
PORT_ZFree(tmp.data, tmp.len);
|
|
if (crv != CKR_OK) {
|
|
break;
|
|
}
|
|
tmp.data = secret;
|
|
tmp.len = secretlen;
|
|
}
|
|
|
|
/*
|
|
* if keySize is supplied, then we are generating a key of a specific
|
|
* length. This is done by taking the least significant 'keySize'
|
|
* bytes from the unsigned value calculated by ECDH. Note: this may
|
|
* mean padding temp with extra leading zeros from what ECDH_Derive
|
|
* already returned (which itself may contain leading zeros).
|
|
*/
|
|
if (keySize) {
|
|
if (secretlen < keySize) {
|
|
keyData = PORT_ZAlloc(keySize);
|
|
if (!keyData) {
|
|
PORT_ZFree(tmp.data, tmp.len);
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
PORT_Memcpy(&keyData[keySize - secretlen], secret, secretlen);
|
|
secret = keyData;
|
|
} else {
|
|
secret += (secretlen - keySize);
|
|
}
|
|
secretlen = keySize;
|
|
}
|
|
|
|
sftk_forceAttribute(key, CKA_VALUE, secret, secretlen);
|
|
PORT_ZFree(tmp.data, tmp.len);
|
|
if (keyData) {
|
|
PORT_ZFree(keyData, keySize);
|
|
}
|
|
break;
|
|
|
|
ec_loser:
|
|
crv = CKR_ARGUMENTS_BAD;
|
|
PORT_Free(ecScalar.data);
|
|
if (privKey != sourceKey->objectInfo)
|
|
nsslowkey_DestroyPrivateKey(privKey);
|
|
if (arena) {
|
|
PORT_FreeArena(arena, PR_FALSE);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* See RFC 5869 and CK_NSS_HKDFParams for documentation. */
|
|
case CKM_NSS_HKDF_SHA1:
|
|
hashType = HASH_AlgSHA1;
|
|
goto hkdf;
|
|
case CKM_NSS_HKDF_SHA256:
|
|
hashType = HASH_AlgSHA256;
|
|
goto hkdf;
|
|
case CKM_NSS_HKDF_SHA384:
|
|
hashType = HASH_AlgSHA384;
|
|
goto hkdf;
|
|
case CKM_NSS_HKDF_SHA512:
|
|
hashType = HASH_AlgSHA512;
|
|
goto hkdf;
|
|
hkdf : {
|
|
const CK_NSS_HKDFParams *params =
|
|
(const CK_NSS_HKDFParams *)pMechanism->pParameter;
|
|
const SECHashObject *rawHash;
|
|
unsigned hashLen;
|
|
CK_BYTE hashbuf[HASH_LENGTH_MAX];
|
|
CK_BYTE *prk; /* psuedo-random key */
|
|
CK_ULONG prkLen;
|
|
CK_BYTE *okm; /* output keying material */
|
|
|
|
rawHash = HASH_GetRawHashObject(hashType);
|
|
if (rawHash == NULL || rawHash->length > sizeof(hashbuf)) {
|
|
crv = CKR_FUNCTION_FAILED;
|
|
break;
|
|
}
|
|
hashLen = rawHash->length;
|
|
|
|
if (pMechanism->ulParameterLen != sizeof(CK_NSS_HKDFParams) ||
|
|
!params || (!params->bExpand && !params->bExtract) ||
|
|
(params->bExtract && params->ulSaltLen > 0 && !params->pSalt) ||
|
|
(params->bExpand && params->ulInfoLen > 0 && !params->pInfo)) {
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
break;
|
|
}
|
|
if (keySize == 0 || keySize > sizeof key_block ||
|
|
(!params->bExpand && keySize > hashLen) ||
|
|
(params->bExpand && keySize > 255 * hashLen)) {
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
break;
|
|
}
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
|
|
/* HKDF-Extract(salt, base key value) */
|
|
if (params->bExtract) {
|
|
CK_BYTE *salt;
|
|
CK_ULONG saltLen;
|
|
HMACContext *hmac;
|
|
unsigned int bufLen;
|
|
|
|
salt = params->pSalt;
|
|
saltLen = params->ulSaltLen;
|
|
if (salt == NULL) {
|
|
saltLen = hashLen;
|
|
salt = hashbuf;
|
|
memset(salt, 0, saltLen);
|
|
}
|
|
hmac = HMAC_Create(rawHash, salt, saltLen, isFIPS);
|
|
if (!hmac) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
HMAC_Begin(hmac);
|
|
HMAC_Update(hmac, (const unsigned char *)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
HMAC_Finish(hmac, hashbuf, &bufLen, sizeof(hashbuf));
|
|
HMAC_Destroy(hmac, PR_TRUE);
|
|
PORT_Assert(bufLen == rawHash->length);
|
|
prk = hashbuf;
|
|
prkLen = bufLen;
|
|
} else {
|
|
/* PRK = base key value */
|
|
prk = (CK_BYTE *)att->attrib.pValue;
|
|
prkLen = att->attrib.ulValueLen;
|
|
}
|
|
|
|
/* HKDF-Expand */
|
|
if (!params->bExpand) {
|
|
okm = prk;
|
|
} else {
|
|
/* T(1) = HMAC-Hash(prk, "" | info | 0x01)
|
|
* T(n) = HMAC-Hash(prk, T(n-1) | info | n
|
|
* key material = T(1) | ... | T(n)
|
|
*/
|
|
HMACContext *hmac;
|
|
CK_BYTE bi;
|
|
unsigned iterations = PR_ROUNDUP(keySize, hashLen) / hashLen;
|
|
hmac = HMAC_Create(rawHash, prk, prkLen, isFIPS);
|
|
if (hmac == NULL) {
|
|
crv = CKR_HOST_MEMORY;
|
|
break;
|
|
}
|
|
for (bi = 1; bi <= iterations; ++bi) {
|
|
unsigned len;
|
|
HMAC_Begin(hmac);
|
|
if (bi > 1) {
|
|
HMAC_Update(hmac, key_block + ((bi - 2) * hashLen), hashLen);
|
|
}
|
|
if (params->ulInfoLen != 0) {
|
|
HMAC_Update(hmac, params->pInfo, params->ulInfoLen);
|
|
}
|
|
HMAC_Update(hmac, &bi, 1);
|
|
HMAC_Finish(hmac, key_block + ((bi - 1) * hashLen), &len,
|
|
hashLen);
|
|
PORT_Assert(len == hashLen);
|
|
}
|
|
HMAC_Destroy(hmac, PR_TRUE);
|
|
okm = key_block;
|
|
}
|
|
/* key material = prk */
|
|
crv = sftk_forceAttribute(key, CKA_VALUE, okm, keySize);
|
|
break;
|
|
} /* end of CKM_NSS_HKDF_* */
|
|
|
|
case CKM_NSS_JPAKE_ROUND2_SHA1:
|
|
hashType = HASH_AlgSHA1;
|
|
goto jpake2;
|
|
case CKM_NSS_JPAKE_ROUND2_SHA256:
|
|
hashType = HASH_AlgSHA256;
|
|
goto jpake2;
|
|
case CKM_NSS_JPAKE_ROUND2_SHA384:
|
|
hashType = HASH_AlgSHA384;
|
|
goto jpake2;
|
|
case CKM_NSS_JPAKE_ROUND2_SHA512:
|
|
hashType = HASH_AlgSHA512;
|
|
goto jpake2;
|
|
jpake2:
|
|
if (pMechanism->pParameter == NULL ||
|
|
pMechanism->ulParameterLen != sizeof(CK_NSS_JPAKERound2Params))
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
if (crv == CKR_OK && sftk_isTrue(key, CKA_TOKEN))
|
|
crv = CKR_TEMPLATE_INCONSISTENT;
|
|
if (crv == CKR_OK)
|
|
crv = sftk_DeriveSensitiveCheck(sourceKey, key);
|
|
if (crv == CKR_OK)
|
|
crv = jpake_Round2(hashType,
|
|
(CK_NSS_JPAKERound2Params *)pMechanism->pParameter,
|
|
sourceKey, key);
|
|
break;
|
|
|
|
case CKM_NSS_JPAKE_FINAL_SHA1:
|
|
hashType = HASH_AlgSHA1;
|
|
goto jpakeFinal;
|
|
case CKM_NSS_JPAKE_FINAL_SHA256:
|
|
hashType = HASH_AlgSHA256;
|
|
goto jpakeFinal;
|
|
case CKM_NSS_JPAKE_FINAL_SHA384:
|
|
hashType = HASH_AlgSHA384;
|
|
goto jpakeFinal;
|
|
case CKM_NSS_JPAKE_FINAL_SHA512:
|
|
hashType = HASH_AlgSHA512;
|
|
goto jpakeFinal;
|
|
jpakeFinal:
|
|
if (pMechanism->pParameter == NULL ||
|
|
pMechanism->ulParameterLen != sizeof(CK_NSS_JPAKEFinalParams))
|
|
crv = CKR_MECHANISM_PARAM_INVALID;
|
|
/* We purposely do not do the derive sensitivity check; we want to be
|
|
able to derive non-sensitive keys while allowing the ROUND1 and
|
|
ROUND2 keys to be sensitive (which they always are, since they are
|
|
in the CKO_PRIVATE_KEY class). The caller must include CKA_SENSITIVE
|
|
in the template in order for the resultant keyblock key to be
|
|
sensitive.
|
|
*/
|
|
if (crv == CKR_OK)
|
|
crv = jpake_Final(hashType,
|
|
(CK_NSS_JPAKEFinalParams *)pMechanism->pParameter,
|
|
sourceKey, key);
|
|
break;
|
|
|
|
default:
|
|
crv = CKR_MECHANISM_INVALID;
|
|
}
|
|
if (att) {
|
|
sftk_FreeAttribute(att);
|
|
}
|
|
sftk_FreeObject(sourceKey);
|
|
if (crv != CKR_OK) {
|
|
if (key)
|
|
sftk_FreeObject(key);
|
|
return crv;
|
|
}
|
|
|
|
/* link the key object into the list */
|
|
if (key) {
|
|
SFTKSessionObject *sessKey = sftk_narrowToSessionObject(key);
|
|
PORT_Assert(sessKey);
|
|
/* get the session */
|
|
sessKey->wasDerived = PR_TRUE;
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL) {
|
|
sftk_FreeObject(key);
|
|
return CKR_HOST_MEMORY;
|
|
}
|
|
|
|
crv = sftk_handleObject(key, session);
|
|
sftk_FreeSession(session);
|
|
*phKey = key->handle;
|
|
sftk_FreeObject(key);
|
|
}
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_GetFunctionStatus obtains an updated status of a function running
|
|
* in parallel with an application. */
|
|
CK_RV
|
|
NSC_GetFunctionStatus(CK_SESSION_HANDLE hSession)
|
|
{
|
|
CHECK_FORK();
|
|
|
|
return CKR_FUNCTION_NOT_PARALLEL;
|
|
}
|
|
|
|
/* NSC_CancelFunction cancels a function running in parallel */
|
|
CK_RV
|
|
NSC_CancelFunction(CK_SESSION_HANDLE hSession)
|
|
{
|
|
CHECK_FORK();
|
|
|
|
return CKR_FUNCTION_NOT_PARALLEL;
|
|
}
|
|
|
|
/* NSC_GetOperationState saves the state of the cryptographic
|
|
* operation in a session.
|
|
* NOTE: This code only works for digest functions for now. eventually need
|
|
* to add full flatten/resurect to our state stuff so that all types of state
|
|
* can be saved */
|
|
CK_RV
|
|
NSC_GetOperationState(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pOperationState, CK_ULONG_PTR pulOperationStateLen)
|
|
{
|
|
SFTKSessionContext *context;
|
|
SFTKSession *session;
|
|
CK_RV crv;
|
|
CK_ULONG pOSLen = *pulOperationStateLen;
|
|
|
|
CHECK_FORK();
|
|
|
|
/* make sure we're legal */
|
|
crv = sftk_GetContext(hSession, &context, SFTK_HASH, PR_TRUE, &session);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
|
|
*pulOperationStateLen = context->cipherInfoLen + sizeof(CK_MECHANISM_TYPE) + sizeof(SFTKContextType);
|
|
if (pOperationState == NULL) {
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
} else {
|
|
if (pOSLen < *pulOperationStateLen) {
|
|
return CKR_BUFFER_TOO_SMALL;
|
|
}
|
|
}
|
|
PORT_Memcpy(pOperationState, &context->type, sizeof(SFTKContextType));
|
|
pOperationState += sizeof(SFTKContextType);
|
|
PORT_Memcpy(pOperationState, &context->currentMech,
|
|
sizeof(CK_MECHANISM_TYPE));
|
|
pOperationState += sizeof(CK_MECHANISM_TYPE);
|
|
PORT_Memcpy(pOperationState, context->cipherInfo, context->cipherInfoLen);
|
|
sftk_FreeSession(session);
|
|
return CKR_OK;
|
|
}
|
|
|
|
#define sftk_Decrement(stateSize, len) \
|
|
stateSize = ((stateSize) > (CK_ULONG)(len)) ? ((stateSize) - (CK_ULONG)(len)) : 0;
|
|
|
|
/* NSC_SetOperationState restores the state of the cryptographic
|
|
* operation in a session. This is coded like it can restore lots of
|
|
* states, but it only works for truly flat cipher structures. */
|
|
CK_RV
|
|
NSC_SetOperationState(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pOperationState, CK_ULONG ulOperationStateLen,
|
|
CK_OBJECT_HANDLE hEncryptionKey, CK_OBJECT_HANDLE hAuthenticationKey)
|
|
{
|
|
SFTKSessionContext *context;
|
|
SFTKSession *session;
|
|
SFTKContextType type;
|
|
CK_MECHANISM mech;
|
|
CK_RV crv = CKR_OK;
|
|
|
|
CHECK_FORK();
|
|
|
|
while (ulOperationStateLen != 0) {
|
|
/* get what type of state we're dealing with... */
|
|
PORT_Memcpy(&type, pOperationState, sizeof(SFTKContextType));
|
|
|
|
/* fix up session contexts based on type */
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
context = sftk_ReturnContextByType(session, type);
|
|
sftk_SetContextByType(session, type, NULL);
|
|
if (context) {
|
|
sftk_FreeContext(context);
|
|
}
|
|
pOperationState += sizeof(SFTKContextType);
|
|
sftk_Decrement(ulOperationStateLen, sizeof(SFTKContextType));
|
|
|
|
/* get the mechanism structure */
|
|
PORT_Memcpy(&mech.mechanism, pOperationState, sizeof(CK_MECHANISM_TYPE));
|
|
pOperationState += sizeof(CK_MECHANISM_TYPE);
|
|
sftk_Decrement(ulOperationStateLen, sizeof(CK_MECHANISM_TYPE));
|
|
/* should be filled in... but not necessary for hash */
|
|
mech.pParameter = NULL;
|
|
mech.ulParameterLen = 0;
|
|
switch (type) {
|
|
case SFTK_HASH:
|
|
crv = NSC_DigestInit(hSession, &mech);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
crv = sftk_GetContext(hSession, &context, SFTK_HASH, PR_TRUE,
|
|
NULL);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
PORT_Memcpy(context->cipherInfo, pOperationState,
|
|
context->cipherInfoLen);
|
|
pOperationState += context->cipherInfoLen;
|
|
sftk_Decrement(ulOperationStateLen, context->cipherInfoLen);
|
|
break;
|
|
default:
|
|
/* do sign/encrypt/decrypt later */
|
|
crv = CKR_SAVED_STATE_INVALID;
|
|
}
|
|
sftk_FreeSession(session);
|
|
if (crv != CKR_OK)
|
|
break;
|
|
}
|
|
return crv;
|
|
}
|
|
|
|
/* Dual-function cryptographic operations */
|
|
|
|
/* NSC_DigestEncryptUpdate continues a multiple-part digesting and encryption
|
|
* operation. */
|
|
CK_RV
|
|
NSC_DigestEncryptUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
|
|
CK_ULONG ulPartLen, CK_BYTE_PTR pEncryptedPart,
|
|
CK_ULONG_PTR pulEncryptedPartLen)
|
|
{
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
crv = NSC_EncryptUpdate(hSession, pPart, ulPartLen, pEncryptedPart,
|
|
pulEncryptedPartLen);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
crv = NSC_DigestUpdate(hSession, pPart, ulPartLen);
|
|
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_DecryptDigestUpdate continues a multiple-part decryption and
|
|
* digesting operation. */
|
|
CK_RV
|
|
NSC_DecryptDigestUpdate(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pEncryptedPart, CK_ULONG ulEncryptedPartLen,
|
|
CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
|
|
{
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
crv = NSC_DecryptUpdate(hSession, pEncryptedPart, ulEncryptedPartLen,
|
|
pPart, pulPartLen);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
crv = NSC_DigestUpdate(hSession, pPart, *pulPartLen);
|
|
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_SignEncryptUpdate continues a multiple-part signing and
|
|
* encryption operation. */
|
|
CK_RV
|
|
NSC_SignEncryptUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
|
|
CK_ULONG ulPartLen, CK_BYTE_PTR pEncryptedPart,
|
|
CK_ULONG_PTR pulEncryptedPartLen)
|
|
{
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
crv = NSC_EncryptUpdate(hSession, pPart, ulPartLen, pEncryptedPart,
|
|
pulEncryptedPartLen);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
crv = NSC_SignUpdate(hSession, pPart, ulPartLen);
|
|
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_DecryptVerifyUpdate continues a multiple-part decryption
|
|
* and verify operation. */
|
|
CK_RV
|
|
NSC_DecryptVerifyUpdate(CK_SESSION_HANDLE hSession,
|
|
CK_BYTE_PTR pEncryptedData, CK_ULONG ulEncryptedDataLen,
|
|
CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
|
|
{
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
crv = NSC_DecryptUpdate(hSession, pEncryptedData, ulEncryptedDataLen,
|
|
pData, pulDataLen);
|
|
if (crv != CKR_OK)
|
|
return crv;
|
|
crv = NSC_VerifyUpdate(hSession, pData, *pulDataLen);
|
|
|
|
return crv;
|
|
}
|
|
|
|
/* NSC_DigestKey continues a multi-part message-digesting operation,
|
|
* by digesting the value of a secret key as part of the data already digested.
|
|
*/
|
|
CK_RV
|
|
NSC_DigestKey(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE hKey)
|
|
{
|
|
SFTKSession *session = NULL;
|
|
SFTKObject *key = NULL;
|
|
SFTKAttribute *att;
|
|
CK_RV crv;
|
|
|
|
CHECK_FORK();
|
|
|
|
session = sftk_SessionFromHandle(hSession);
|
|
if (session == NULL)
|
|
return CKR_SESSION_HANDLE_INVALID;
|
|
|
|
key = sftk_ObjectFromHandle(hKey, session);
|
|
sftk_FreeSession(session);
|
|
if (key == NULL)
|
|
return CKR_KEY_HANDLE_INVALID;
|
|
|
|
/* PUT ANY DIGEST KEY RESTRICTION CHECKS HERE */
|
|
|
|
/* make sure it's a valid key for this operation */
|
|
if (key->objclass != CKO_SECRET_KEY) {
|
|
sftk_FreeObject(key);
|
|
return CKR_KEY_TYPE_INCONSISTENT;
|
|
}
|
|
/* get the key value */
|
|
att = sftk_FindAttribute(key, CKA_VALUE);
|
|
sftk_FreeObject(key);
|
|
if (!att) {
|
|
return CKR_KEY_HANDLE_INVALID;
|
|
}
|
|
crv = NSC_DigestUpdate(hSession, (CK_BYTE_PTR)att->attrib.pValue,
|
|
att->attrib.ulValueLen);
|
|
sftk_FreeAttribute(att);
|
|
return crv;
|
|
}
|