add cebd_decrypt

DreamTown/Cebd_Decrypt/Cebd_Decrypt.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26228.76
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cebd_Decrypt", "Cebd_Decrypt\Cebd_Decrypt.csproj", "{0DCF9DB3-3A88-431B-8D01-64FFA9DF8EA6}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0DCF9DB3-3A88-431B-8D01-64FFA9DF8EA6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0DCF9DB3-3A88-431B-8D01-64FFA9DF8EA6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0DCF9DB3-3A88-431B-8D01-64FFA9DF8EA6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0DCF9DB3-3A88-431B-8D01-64FFA9DF8EA6}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

DreamTown/Cebd_Decrypt/Cebd_Decrypt/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    </startup>
+</configuration>

DreamTown/Cebd_Decrypt/Cebd_Decrypt/Cebd_Decrypt.csproj

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{0DCF9DB3-3A88-431B-8D01-64FFA9DF8EA6}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Cebd_Decrypt</RootNamespace>
+    <AssemblyName>Cebd_Decrypt</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="BouncyCastle.Crypto, Version=1.8.5.0, Culture=neutral, PublicKeyToken=0e99375e54769942">
+      <HintPath>..\packages\BouncyCastle.1.8.5\lib\BouncyCastle.Crypto.dll</HintPath>
+    </Reference>
+    <Reference Include="DotNetZip, Version=1.13.4.0, Culture=neutral, PublicKeyToken=6583c7c814667745, processorArchitecture=MSIL">
+      <HintPath>..\packages\DotNetZip.1.13.4\lib\net40\DotNetZip.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

DreamTown/Cebd_Decrypt/Cebd_Decrypt/Program.cs

@@ -0,0 +1,71 @@
+using Ionic.Zlib;
+using Org.BouncyCastle.Crypto.Engines;
+using Org.BouncyCastle.Crypto.Parameters;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Cebd_Decrypt
+{
+    class Program
+    {
+        static int readInt32BE(Stream fs)
+        {
+            byte[] int32spc = new byte[4];
+            fs.Read(int32spc, 0, 4);
+            int32spc = int32spc.Reverse().ToArray();
+            return BitConverter.ToInt32(int32spc, 0);
+        }
+
+        static void Main(string[] args)
+        {
+
+
+            if (args[0] == "-d")
+            {
+                FileStream fs = new FileStream(args[1], FileMode.OpenOrCreate, FileAccess.ReadWrite);
+
+                int keyLen = readInt32BE(fs);
+                Console.WriteLine("KeyLen: " + keyLen.ToString());
+                byte[] key = new byte[keyLen];
+                fs.Read(key, 0, keyLen);
+
+                long Remaining = fs.Length - fs.Position;
+                Console.WriteLine("Remaining: " + Remaining.ToString());
+                byte[] data = new byte[Remaining];
+                byte[] data2 = new byte[Remaining];
+                fs.Read(data, 0, (int)Remaining);
+
+                RC4Engine ARC4 = new RC4Engine();
+                ARC4.Init(false, new KeyParameter(key));
+                ARC4.ProcessBytes(data, 0, data.Length, data2, 0);
+                Byte[] DecompressedData = ZlibStream.UncompressBuffer(data2);
+                File.WriteAllBytes(args[2], DecompressedData);
+            }
+            else if(args[0] == "-e")
+            {
+                FileStream fs = new FileStream(args[2], FileMode.OpenOrCreate, FileAccess.ReadWrite);
+
+                int keyLen = readInt32BE(fs);
+                Console.WriteLine("KeyLen: " + keyLen.ToString());
+                byte[] key = new byte[keyLen];
+                fs.Read(key, 0, keyLen);
+
+                Byte[] PlaintextData = File.ReadAllBytes(args[1]);
+                Byte[] CompressedData = ZlibStream.CompressBuffer(PlaintextData);
+                Byte[] EncryptedData = new Byte[CompressedData.Length];
+
+                RC4Engine ARC4 = new RC4Engine();
+                ARC4.Init(false, new KeyParameter(key));
+                ARC4.ProcessBytes(CompressedData, 0, CompressedData.Length, EncryptedData, 0);
+                fs.SetLength(fs.Position);
+                fs.Write(EncryptedData,0,EncryptedData.Length);
+                fs.Close();
+            }
+          
+        }
+    }
+}

DreamTown/Cebd_Decrypt/Cebd_Decrypt/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Cebd_Decrypt")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Cebd_Decrypt")]
+[assembly: AssemblyCopyright("Copyright ©  2019")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("0dcf9db3-3a88-431b-8d01-64ffa9df8ea6")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

DreamTown/Cebd_Decrypt/Cebd_Decrypt/packages.config

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="BouncyCastle" version="1.8.5" targetFramework="net452" />
+  <package id="DotNetZip" version="1.13.4" targetFramework="net452" />
+</packages>

DreamTown/Cebd_Decrypt/packages/BouncyCastle.1.8.5/README.md

@@ -0,0 +1,30 @@
+# The Bouncy Castle Crypto Package For C Sharp
+
+The Bouncy Castle Crypto package is a C\# implementation of cryptographic algorithms and protocols, it was developed by the Legion of the Bouncy Castle, a registered Australian Charity, with a little help! The Legion, and the latest goings on with this package, can be found at [http://www.bouncycastle.org](http://www.bouncycastle.org). In addition to providing basic cryptography algorithms, the package also provides support for CMS, TSP, X.509 certificate generation and a variety of other standards such as OpenPGP.
+
+The Legion also gratefully acknowledges the contributions made to this package by others (see [here](http://www.bouncycastle.org/csharp/contributors.html) for the current list). If you would like to contribute to our efforts please feel free to get in touch with us or visit our [donations page](https://www.bouncycastle.org/donate), sponsor some specific work, or purchase a support contract through [Crypto Workshop](http://www.cryptoworkshop.com).
+
+Except where otherwise stated, this software is distributed under a license based on the MIT X Consortium license. To view the license, [see here](http://www.bouncycastle.org/licence.html). The OpenPGP library also includes a modified BZIP2 library which is licensed under the [Apache Software License, Version 2.0](http://www.apache.org/licenses/). 
+
+**Note**: this source tree is not the FIPS version of the APIs - if you are interested in our FIPS version please contact us directly at  [office@bouncycastle.org](mailto:office@bouncycastle.org).
+
+## Mailing Lists
+
+For those who are interested, there are 2 mailing lists for participation in this project. To subscribe use the links below and include the word subscribe in the message body. (To unsubscribe, replace **subscribe** with **unsubscribe** in the message body)
+
+*   [announce-crypto-csharp-request@bouncycastle.org](mailto:announce-crypto-csharp-request@bouncycastle.org)  
+    This mailing list is for new release announcements only, general subscribers cannot post to it.
+*   [dev-crypto-csharp-request@bouncycastle.org](mailto:dev-crypto-csharp-request@bouncycastle.org)  
+    This mailing list is for discussion of development of the package. This includes bugs, comments, requests for enhancements, questions about use or operation.
+
+**NOTE:**You need to be subscribed to send mail to the above mailing list.
+
+## Feedback 
+
+If you want to provide feedback directly to the members of **The Legion** then please use [feedback-crypto@bouncycastle.org](mailto:feedback-crypto@bouncycastle.org), if you want to help this project survive please consider [donating](https://www.bouncycastle.org/donate).
+
+For bug reporting/requests you can report issues here on github, via feedback-crypto if required, and we also have a [Jira issue tracker](http://www.bouncycastle.org/jira). We will accept pull requests based on this repository as well.
+
+## Finally
+
+Enjoy!