Search found 12 matches

by ripnet
Wed Jul 06, 2005 6:39 am
Forum: PSP Development
Topic: PSP Encryption Key
Replies: 34
Views: 21436

Do we actually know the numbers?

Just out of interest, I would like to see something along the lines of "If we can factorize 2349874395782349652395239523652352376578234653245273465 we have cracked it"... i think it would be clearer with real numbers than in terms of 64 bits... I dont think we are even certain of the alogr...
by ripnet
Fri Jun 17, 2005 10:37 pm
Forum: PSP Development
Topic: Can we make a software loader menu?
Replies: 2
Views: 2025

Can we make a software loader menu?

Hi, With the new swaploit, it would be nice if the second memory stick could have a menu program on it that allowed you to select other programs to load (like evo-x on the xbox). That way, we wouldnt have to either have a dummy folder on ms1 for each program, nor would we have to rename files on ms2...
by ripnet
Fri Jun 17, 2005 10:31 pm
Forum: PSP Development
Topic: PSP Encryption Key
Replies: 34
Views: 21436

In theory yes... but...

i belive it involves factorzing the product of 2 large primes - thats why its impossible (read very difficult / time consuming) to reverse it... Its very easy to multiply 2 primes to make a large number Z but to find out which 2 primes multiply together to make Z involves a brute force search, and t...
by ripnet
Thu May 12, 2005 11:51 pm
Forum: PSP Development
Topic: BIOS Recovery Mode
Replies: 41
Views: 21741

Also..

... I read somewhere that Sony use the headphone remote connector to re-flash dead (ie, leaked firmware flashed) PSP's - could it be that the JTAG interface is exposed there? reading http://en.wikipedia.org/wiki/JTAG it looks like the JTAG interface is 4 pins - we have 6 on the remote (in addition t...
by ripnet
Thu May 12, 2005 11:24 pm
Forum: PSP Development
Topic: BIOS Recovery Mode
Replies: 41
Views: 21741

The Rockbox crew have done something similar...

... to re-flash dead iRiver mp3 players - the page is http://www.rockbox.org/twiki/bin/view/Main/IriverBDM. Also, Sony have NOT disabled re-flashing via jtag because they do it to repair dead PSPs. Maybe we should research the JTAG interface, and see if we can get any info about it. I believe there ...
by ripnet
Tue May 10, 2005 3:06 am
Forum: PSP Development
Topic: BOOT.BIN and EBOOT.BIN
Replies: 2
Views: 3652

BOOT.BIN and EBOOT.BIN

Hi, It has been revealed elsewhere that eboot.bin is an encrypted version of boot.bin (left in by sloppy dev's or sloppy Sony). Given that we have examples of pairs of unencrypted and encrypted binaries, maybe we should look into crypto attacks on the encryption. EBoot.bin seems to start with the st...
by ripnet
Sat May 07, 2005 12:44 am
Forum: General Discussion
Topic: Would a strings of the UMD dumps be allowed here?
Replies: 11
Views: 6365

... in English

Babel Fish Translation:

Achtung! Teilen Sie nicht interessante Sachen hier mit!
=
Note! Do not communicate interesting things here!

:-O
by ripnet
Fri May 06, 2005 11:33 pm
Forum: General Discussion
Topic: Would a strings of the UMD dumps be allowed here?
Replies: 11
Views: 6365

Would a strings of the UMD dumps be allowed here?

Hi, Running cat * | strings -9 | uniq against the ripped UMD data produces quite a lot of interesting strings... for example, we get GCC: (GNU) 3.3.3+allegrex-2.2.1-psp-1.5.1.internal and host0:/usr/local/psp/devkit/module/pspnet.prx and sceKernelLoadModule() and SceParseHTTPheader_Library (on Ridge...
by ripnet
Fri May 06, 2005 10:49 pm
Forum: PSP Development
Topic: holds a key
Replies: 19
Views: 10256

Which file do u want?

Hi, If you want a (small) file from a UMD iso, I cannot post it to these forums, but if you mail me at ps2dev (hat) ripnet.co.uk I can send u any file from Ridge Racer (.jap). G (I am not after warezing - i actually own the original , but downloaded the .iso as its very interesting how these things ...
by ripnet
Fri May 06, 2005 9:31 pm
Forum: PSP Development
Topic: holds a key
Replies: 19
Views: 10256

I reckon its not a key, but a signature

I think that lines like ULJS-00001|CCCD9317C815B9F5|0001|G in umd_date.bin contain a digital signature, and not the key. Sony would be a bit dumb to put the key in plaintext. I reckon this is a number derrived from the private key and the md5 of the executable(s), which is checked by the OS before i...
by ripnet
Thu May 05, 2005 9:37 pm
Forum: PSP Development
Topic: Hello World for PSP
Replies: 99
Views: 163295

Cool

Sorry oPPO - i didnt realise you had independently tested it and were trusted :) Lookin' good... g
by ripnet
Thu May 05, 2005 6:08 pm
Forum: PSP Development
Topic: Hello World for PSP
Replies: 99
Views: 163295

Not being funny but...

... has anyone independently verified that this boots on a 1.0 psp? i only have 1.5 and cant check, but until someone else checks it and verifys that its actually running code, all we have is a custom image on a psp, which is default behaviour supported by Sony... i find it very hard to believe that...