This mod of psardumper can decrypt/decompress:
* individual firmware modules from all known retail firmwares (1.00-3.71)
* modules and EBOOT.BIN files from all current retail games, and debug EBOOT.BIN files
* M33 custom firmware modules
* RLZ files extracted from RCOs
* official updaters DATA.PSP
* meimg.img and me_sdimg.img from 2.50 and 2.60, possibly higher
* 2.7X~3.52 demos DATA.PSP
* 1.XX, 2.00-2.50, 2.60-2.71, 2.80, 3.00 and 3.10+ gamesharing EBOOTs

///// CHANGELOG
/////////////////

1.6 -» 1.7
- Fully compatible with HEN/2.71/3.xx kernel/3.60 M33 - Just copy PRXdecrypter_3XX folder to GAME. Have fun, firmware modders.
` OE and M33 users should also use this version, just put it in GAME352 or GAME (if you have that set to the 3.52 kernel)
` 1.50 users (if any of you still exist) or those who want to use the 1.50 kernel, use the kxploited version.
` I will maintain this version in case the 3.XX kernel changes significantly which breaks PRXdecrypter
- Added 3.60 and 3.7X keys
- HEN/3.XX version doesn't need sysmem_rlz.prx for RLZ decompression as it uses the function from the 3.xx kernel
- Huge internal cleanup with clearer messages, better error handling and more speed.
- Improved logging (logs almost everything now)
- Press O to UnSignCheck all files in the ms0:/enc folder
- Press RIGHT on the D-PAD to extract reboot_02g.bin from loadexec_reboot_02g.prx (from 3.60 or higher)

Nice.

I like the part about not needing the sysmem_rlz.prx in the 3.xx kernels.

Great news , thanks for the info matchung , i already tested the new prx ,from 3.60 , and they don't work with CXMB , i can't understand why opening is working and others don't ?

well gsmoke in the previous version of cxmb only the opening prx worked maybe the author dint add the necessary code for all prx cause none were availabe