prxdecrypter (psardumper mod to decrypt PRX files)
version 1.3
by jas0nuk

***
This mod of psardumper can decrypt individual firmware modules from all known retail firmwares (1.00-3.30)
Also works with all current game PRXs.

CHANGELOG:
1.2 --> 1.3
- 3.30 support

1.1 --> 1.2
- 3.10/3.11 support
- changed name

1.0 --> 1.1
- Supports sigchecked files if they were signed on the PSP they are being decrypted on
- Can decompress RLZ files
- "sysmem_reboot.prx" is now "sysmem_rlz.prx" as it is used for both reboot.bin extraction and RLZ decompression. If "sysmem_rlz.prx" is not in the 'enc' folder, a red warning will be displayed and RLZ decompression will not be possible.
- Much better error handling. Note: if a file entirely fails to decrypt (e.g. EBOOT.BIN) it will be deleted to prevent memory stick corruption.
- To save space, paths are printed as just the filename, e.g 'audio.prx' instead of 'ms0:/enc/audio.prx' whilst decrypting

INSTRUCTIONS:
Make a folder on your memory stick called "enc" and place your encrypted PRXs there. Then run the app and press X to decrypt them.
The encrypted files will be replaced with decrypted versions.

The app can also extract reboot.bin from a 1.50 loadexec.prx or later.

Just place a DECRYPTED 2.60 or later sysmem.prx in the "ms0:/enc" folder and name it as "sysmem_rlz.prx"
Then place a DECRYPTED copy of loadexec.prx from the firmware you want reboot.bin for, and name it as "loadexec_reboot.prx"

When these two files are detected, an option to obtain reboot.bin (by pressing SQUARE) appears in the application.

THANKS:
Everyone at LAN.SH and Toc2rta
Dark_AleX (for "unSignCheck", and for the psardumper with 2.60-2.80 encryption)
Team Noobz and Team C+D (for 3.00~3.30 encryption keys)
PspPet (for the original psardumper)

Enjoy ;)
~jas0nuk