Editing Spock
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Spock is the PSP hardware cryptography engine responsible for the raw sector level decryption of UMD’s. Named after Captain Spock of Star Trek | Spock is the PSP hardware cryptography engine responsible for the raw sector level decryption of UMD’s. Named after Captain Spock of Star Trek. | ||
= Executing commands = | = Executing commands = | ||
You can more or less access Spock through Lepton's ram (there is some hidden test mode on Lepton allowing you to do this). Mathieulh will tell more on this later if he ever get the time to clean up those sources. | You can more or less access Spock through Lepton's ram (there is some hidden test mode on Lepton allowing you to do this). Mathieulh will tell more on this later if he ever get the time to clean up those sources. | ||
= Commands = | = Commands = | ||
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0x0A: Decrypt UMD Disc Sector | 0x0A: Decrypt UMD Disc Sector | ||
0x0B: Reset SPOCK | 0x0B: Reset SPOCK | ||
0x0C: | 0x0C: | ||
</pre> | </pre> | ||
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== Command 4 (Step 2) == | == Command 4 (Step 2) == | ||
== Command 5 | == Command 5 == | ||
== Command 6 == | == Command 6 == | ||
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== Command 7 == | == Command 7 == | ||
== Command 8 ( | == Command 8 (decrypt UMD master key) == | ||
== Command 9 ( | == Command 9 (decrypt IDStorage UMD leaves) == | ||
Spock command 9 key is used to decrypt UMD leaves stored in [[IDStorage]]. Those leaves are then used in Spock command 8 to decrypt the UMD master key (per disc key). Then this key is used in Spock command 10 to decrypt the UMD raw sectors. Each different PSP region seems to have its own set of UMD keys. | Spock command 9 key is used to decrypt UMD leaves stored in [[IDStorage]]. Those leaves are then used in Spock command 8 to decrypt the UMD master key (per disc key). Then this key is used in Spock command 10 to decrypt the UMD raw sectors. Each different PSP region seems to have its own set of UMD keys. | ||
< | <source lang="C"> | ||
u8 spock_cmd9_key[16] = { 0x9F, 0x46, 0xF9, 0xFC, 0xFA, 0xB2, 0xAD, 0x05, | |||
</ | 0x69, 0xF6, 0x88, 0xD8, 0x79, 0x4B, 0x92, 0xBA}; | ||
</source> | |||
[https://web.archive.org/web/20141201091221/http://pastie.org/1467912 more info on Spock by mathieulh] | [https://web.archive.org/web/20141201091221/http://pastie.org/1467912 more info on Spock by mathieulh] | ||
== Command 10 | == Command 10 (Decrypt UMD raw sectors) == | ||
= | == Command 11 == | ||
== Command 12 == | |||