2024-02-04 13:46:14 +00:00
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# GcToolKit
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2024-01-21 12:21:32 +00:00
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2024-02-04 13:46:14 +00:00
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Tool to create 1:1 backups of PSV Game Cartridges
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including CMD56 authenticationd data.
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This can also be used to format, backup and restore the writable grw0 and mediaid sections of gamecarts.
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2024-01-27 01:09:31 +00:00
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This writes *.vci* files, (vita cartridge image) which is essentially
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cmd56 authentication data + raw image of gc
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2024-02-04 13:46:14 +00:00
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Can run a backup over the network, to a offical memory card,
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a USB device connected to a Vita TV or OTG on Vita 2k, or Accessory Port on Vita 1K
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or host0 on Development Kits.
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2024-01-27 01:54:11 +00:00
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2024-02-04 13:40:00 +00:00
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-- Credit
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2024-02-04 13:41:42 +00:00
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- <sup>The Crystal System</sup> Li- Programming the thing, VCI Format, Reverse engineering gamecart CMD56
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2024-02-04 13:40:00 +00:00
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- olebeck - CMD56 helps
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- Robots System - Selecting music, choosing port numbers, ~~emotional support~~
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- Princess of Sleeping - ExFAT Format code, CMD56 helps
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- SKGLeba - psp2spl for F00D Code execution
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- dots_tb - USB OTG
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- EA Games 1997 - BGM Music from Dungeon Keeper 1 https://www.youtube.com/watch?v=RXfUV_z7i0c
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2024-02-04 13:41:42 +00:00
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-- OTG Compatiblity
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2024-01-27 01:54:11 +00:00
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This program allows backup vita GCs with a USB device connected via an OTG cable
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however this only works with OTG cables with an external power source; or "Y-Cable"
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for example this one for the Amazon Fire Stick https://www.amazon.com/ANDTOBO-Micro-Adapter-Power-Devices/dp/B083M1S6QT will work.
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2024-02-04 13:41:42 +00:00
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-- Difference between .vci and .psv formats
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2024-01-27 01:09:31 +00:00
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The main difference is how the keys stored.
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in psvgamesd, the result of gc_auth_mgr_sm function 0x20 is stored,
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this is the key required to decrypt the .RIF file
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however this key is *actually* derived from the result of SHA256 hash functions
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of some constants exchanged in packet20 and packet18 of gc authentication.
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2024-01-27 01:25:41 +00:00
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in .VCI the *input* to the SHA256 function are included instead.
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2024-01-27 01:09:31 +00:00
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SHA256 is a one-way function and so you cannot go backwards from
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the data captured in psvgamesd to the packet20 and packet18 constants.
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2024-01-27 01:25:41 +00:00
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main advantage is that with VCI it would be thereotically possible to create a vita flash cartridge. .
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this, also means that .VCI can be easily converted to .PSV, but .PSV cannot be converted back to VCI.
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2024-01-27 01:09:31 +00:00
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2024-01-27 01:10:24 +00:00
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