Mapsp95 released Firmware Decrypt PSAR.

Quote:

What is it?
A program to decrypt PRX systems

What for?
CXMB needs some files to work, Firmware Decrypt SHIP helps!
The programmer will also need a lot!

Acknowledgments
Dark_Alex for SHIP Dumper
Team Noobz for 3.00
3.03, 3.10, 3.30: Team C + D
3.60 + 3.71 M33 Team
PspPet, the original author
PSPGEN
XtreamLua
QJ.Net

Notes
For security reasons, it is compatible only from 3.71 but is 2.71 since lancable
Thus,
<2.71 = NO BOOT > 2.71 <= 3.71 BOOT, NO Decrypt > 3.71 = OK

Tested on
PSP2000 TM-085 v1 with 5.50GEN-A

Thanks to www.dcemu.co.uk for the news.

http://xtreamlua.com/forums/viewtopic.php?f=4&t=5132