doesn't decrypt proto prxs properly (0.6.5 arc)

John-K / pspdecrypt

Simple tool to decrypt PSP binaries

GNU General Public License v3.0

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Open zecoxao opened 2 years ago

zecoxao commented 2 years ago

for some reason the tool doesn't decrypt prxs from proto 0.6.5 archive but the old tool i used to use (decrypt_prx) does

zecoxao commented 7 months ago

my friend Zer0Tolerance has found out why. the last step with kirk 0xB (SHA1) fails, pspdecrypt uses this, my prx decrypter does not.

zecoxao commented 7 months ago

John Doe, [26/01/2024 21:50] (_DWORD )(a1 + 0x44) = 0

John Doe, [26/01/2024 21:52] this modification was done in the CheckPspCompress()

John Doe, [26/01/2024 21:53] SHA1 OK!

John Doe, [26/01/2024 22:04] just set 0 for u32(prx+0x44)