forums.ps2dev.org

This is AWESOME! MrBrown, you rock!

Well, GxEmul now does PSP:

http://gavare.se/gxemul/diary.html

http://gavare.se/gxemul/screenshots/200 ... rtable.png

http://gavare.se/gxemul/screenshots/200 ... rtable.png
http://gavare.se/gxemul/diary.html

Have Fun.

It should be:

fb = dev_fb_init(machine, mem, 0x04000000, VFB_GENERIC,480,272, 512,272, 24, "generic", 0);

please notice the last '0', instead of '1'.

I'm also unsure you want to use R6000, as this cpu was almost never used in the real world.

Rinco, I did this change and the only thing I'm getting with gxemul 0.3.3.2 is a segmentation fault, right during the initialization of the framebuffer, is there anything else I need to modify to get this going? I also tried with gxemul 0.3.2 and I get the same seg fault: (gdb) r -V -M 32 -J -T -i -...

Thanks rinco, that's great news, because I don't have windows, I couldn't test my applications, I only run linux.

hmm... maybe the way to go... would be to find out how to go back. Someone with a 1.0 psp has to find a way to get it all off of there... I agree, maybe one could read the eeprom with the 1.0 firmware (I have no problem opening my PSP to flash my firmware to 1.0) or find a way for us to downgrade i...

Domo-kun!

Neila wrote:are you kidding....?

the point would be not to flash it back, but learn from it... it would be priceless.

I absolutely agree on that, there's not only a lot to learn, but honeslty, I didn't buy a psp for the games, or whatever, just in the hope that one day I would run my own apps on it.

Its possible, highly unlikely and completely unconfirmed as far as I know. Wait for someone to confirm it before throwing a party. Man, if it's true, party's on me. Alright, anybody knows what's up with that? Does firmware 1.0 checks for encryption in binaries? Where to get a firmware 1.0? And how ...

Then all of the 'latest games' would have to use up space on the umd for the required firmware, although thats easily possible considering the size of it... if you find a proper ELF (and not some dwarf in disguise ;) ) it should run if not checked properly by the the OS. Except any binaries should ...

How can I downgrade the firmware to 1.0?

From: http://www.psp-spot.com/forums/index.php?showtopic=33 We have word from one of our close friends throughout the scene that they have exploited a way to pull data out of the UMD. Stay tuned for more information as the hack plays its progress. And we will be the first to let everyone know about ...

It's very likely that Sony uses a public key encryption, especially since the RSA patent expired, so forget about your dreams of recompiling linux or whatever mame emulator with a leaked SDK, this ain't gonna happen buddy, the secret key is out of reach. Kudos to Sony for the "Security" o...

What I mean is that they could just have told Wipeout's developers: "hey guys, this is lame, it's obvious that someone will setup a fake DNS server to redirect requests to one's httpd server." And what could they have done about that ? It's physically impossible to avoid such thing to hap...

Oh, I just remembered another attack: Sometimes the radio emissions of computers while decrypting will give clues about the key used. That one might be applicable, but if I recall correctly it works better with cpus running at higher clock rates, so it might not work so well with the PSP either, si...

The "wipeout browser thing" is not a failure of the software. It's not a "buffer overflow" to hijack one's DNS. They couldn't do anything about that. What I mean is that they could just have told Wipeout's developers: "hey guys, this is lame, it's obvious that someone will ...

This is a possibility, and pretty much what the SSH protocol does, but it's unlikely that the secret key is in the SDK, so this would mean that Sony has to encrypt each and every PSP or PSAR, it's a big job, perhaps they have grant developers access to a shell server to encrypt their own binaries? ...

what if (hypothetically) the key is random between software, and the key itself is encrypted as part of the software using a public/private key setup? it's my grossly under-educated opinion that it's pretty unlikely to have only "one layer to the onion" so to speak. if you don't understan...

AES obviously requires an encryption/decryption key, we know that this key is stored on the PSP itself, question is: Where? It's a symetrical encryption, therefore the SAME key is used for encryption and decryption, if only we could find the key, wherever it is, we could encode binaries (assuming th...

the good news, i do have a friend who has access to a machine that can use this process to crack hardware AES bad news, dont know how well it can be used to crack it. AES hardware encryption has been sucessfully cracked, using electromagnetism to measure power consumption of the p and n values befo...

Bruteforcing a crypto algorithm should always be seen as a last resort, when no "shortcuts" were found, i.e. exploits, leak or weakness in the protection scheme or hardware hack, attacking AES-128 could certainly be accomplished by a small government with enough processing power (US, Japan...

Well, you can just forget about the Codewarrior thing, in any case building a cross-compiler is easy and would produce the same results as using the Codewarrior's xgcc, since no extra libs are provided in this package. Unfortunately, we do not have any way to run signed binaries, unless they are cal...

What about using some buffer overflow or any other exploit? Maybe one game doesn't check the format of its save properly, or the mp3/movie player is flawed? I believe that there's a way to load linux using a similar method on the xbox, of course it's no easy job to find such hole.

The API is more like an opearting system, if not actually an opearting system. Try running a game and hitting the Home key. Also connecting over WiFi will show OS screens. Oh, that's indeed very interesting, however that would imply that the bios is able to play movies or mp3 on its own since no ap...

First, don't talk about the SDK here, it's not legit. Talking about the SDK is not illegal, sharing it or using it without a proper license is. The PSP will not run code that isen't encrypted and digital signed. Oh, that's a show stopper, too bad for me, I guess one would need to mod the PSP then o...

As for the cross-compiler being able to make programs, yes this is true, however Sony has a specific API that you need to hook into to make programs (yes, even pro developers have to use this API) and without that we won't know how to make anything run. Thanks for the unpacker it works just fine. I...

I have a question: I recently heard about the Codewarrior leak, I also saw on these forums that the PSP_gcc-1.3.1.tgz (for linux) kit is included in the Codewarror package. Using this kit one could compile code for the PSP architecture (it's nothing but a cross compiler after all) everything (from w...