Decrypt PSSE layer of PSM Games (on PC)
Works on Unity and PSM games, and meets all requirements of: vita-nuova/bounties#73
Usage: psse_decrypt.py <psm game folder>
Discoveries:
- Every game has its own aes-128-cbc key, (located 0x120 bytes into FAKE.rif), so its probably not possible to decrypt a game without a license
- PSM Runtime has a hard coded key for its runtime libaries. - A8693C4DF0AEEDBC9ABFD8213692912D
After 9 years, the encryption used by PlayStation Mobile games is finally cracked!!
Requires: pycryptodome cryptography