(NOTE: You use this file at your own risk.)
Via jas0nuk (source link not allowed). jas0onuk has developed and released a new version of his useful prxdecrypter. Here's the original post:
prxdecrypter (psardumper mod to decrypt PRX files and firmware resources) v1.6 CHANGELOG: 1.5b --> 1.6 - Now comes with a HEN compatible EBOOT which doesnt seem to work properly (partially broken on 3.xx kernel on the fat PSP, ` completely broken on 3.60 M33 due to new hardware) - Added 6 more key sets (1.XX, 2.00-2.50, 2.60-2.71, 2.80, 3.00 and 3.10+ gameshare keys) - Now press TRIANGLE rather than HOME to exit - Fixed 2.7X demo decryption (wrong key) - Removed 5 useless keys - Now uses the entire buffer - previously, files over 4mb would fail - Added second layer of descrambling to a few files - this would have produced messed up output if you tried in the old version - Waiting for the 3.60 and 3.70 keys... I'll add them as soon as I have them. ~jas0nuk Thx to vb_master for testing.