forums.ps2dev.org

The issue is not whether the task of reading UMD data is easy or not. The purpose of a BBS is to share information. Everyone can reinvent the wheel. Using censorship to hide an obvious solution as a newbie admission test is misdirected effort IMHO. If so obvious, it certainly isn't going to stop a W...

> So how about: don't post code to rip UMDs, and don't post details about how UMD data was obtained, whether or not you ripped it yourself. I disagree with being so restrictive. As pointed out by many people, discussing general techniques is generally not illegal The DMCA (restrictive as it is) does...

> Any other ideas on what's happening here other than hidden metadata? Hmm, obvious answer: it is using the timestamp of the gamesave folder (\PSP\SAVEDATA\WHATEVER) > I then went and saved a new game so that the timestamp changed to May 15, 1:00PM. > Using my USB connection, I overwrote the the new...

> pspret, you are in no position to dictate terms Gee, expressing an opinion, and a suggestion, and a polite request -- and people jump down my throat... [and the person I asked apparently agrees to sharing source, which is cool] IMHO using a developer forum for a binary trading post is not a good i...

Addressing skippy911's point only: > dont be so demanding if he doesnt want to put his code he doesnt have to. What have you contributed code wise?? This is a developer BBS. Posting a binary only is not helping the goal of sharing developer info. If this were a user BBS, you would be correct. People...

Please post source code This is a developer's forum. We know the PSP 1.0 exploit works, so we don't need additional binary (closed-source) "proof-of-concept" apps. [I know the exploit is brand new, but sharing source code usually is a win-win for everyone involved - regardless of how early...

FYI: For USA applicable laws, here's one section that everyone should read and understand (IMHO):
http://cyber.law.harvard.edu/openlaw/DVD/1201.html
Especially section "(f) Reverse Engineering"

> We may find many an interesting thing in the BIOS, including possible info on encryption, and other wonderful things. However it is illegal to release it. >... Because Sony has not released it under liscence it'll be illegal... "illegal" ?? Reverse engineering in a legal way is never tha...

Cool! Glad this one didn't turn out to be a hoax like all the rest... ----- re: encryption issues Since the PSP 1.0 JP firmware has both the exploit (load unencrypted ELF) and the code for unencrypting encrypted programs (ie. an EBOOT.PBP for flash update, and for encrypted games), this is the best ...

> just to recap: > a PROPER PSP - ELF/PRX can be executed when substituted for the LOADER (xxxxx.PSP) in the PBP packet on ver 1.0 Just to clarify: This is a *claim* made by "malloc" on another thread. [give or take calling it a "LOADER"] The ELF2PBP tool assumes that claim is tr...

> So you're trying to reverse engineer something that Sony expressly doesn't want to to reverse engineer by any means possible... IMHO: There are plenty of legal "fair use"s of reverse engineering. I've hacked a few systems myself, and have been threatened by Sony too. In all cases I'm pro...

> I replaced with with one I have assembled on my own. It has nothing from Sony/Metrowerks, and still exibits the shut off. Hmm, still looks like it is compiled with GCC (GPL) + the PSP patches (code name "Allegrex") I suspect that is the illegally obtained CodeWarrior compiler, but I wish...

LiquidIce wrote: > The pages currently do not automatically refresh to show status... > That script is written to execute the IR Send then redirect back to the referring page. That's what I found works quite well (no reloading of page data) Going to additional pages or updating status was terribly s...

Good start. Usability questions: How fast/easy is the page navigation ? How fast are the page updates? (how often are pages changed?) How irritating is scrolling through the webpage ? Can you post the raw .HTML pages for others to test drive ? [no server scripts needed] --- I was thinking of somethi...

> but what are the changes of the duo - cf adapter working backwards? Short answer: no (connectors are the wrong gender, logic is completely backwards: MS interface Host going to a CF interface Client) What we need is an MS interface Client (acting like a memory stick) going to a CF/ATA interface Ho...

> but does anybody know any technical information, how does devices communicate with memory stick? There are limited technical documents on the Sony official memorystick.org website > If i build a custom PCB and have it wired to a CF card will PSP read it as it would be MS? Yes, it is possible, but ...

> A patent is supposed to describe the invention in such detail that anyone with average skills in the field can build it from the patent papers alone Nit picky point, but it is important: If sufficiently skilled, the patent should be enough info for you to build something that repeats/infringes on ...

> but the .sfo do have plain text. It's very possible that a hash is locking those plain text fields from change too, just have not tried it yet. They are locked. Try changing any of the strings (even something as simple as "A" -> "a" in one string) and it will report it as corru...

> Possible Key? I don't have much knowledge of AES so I don't know how to go about decrypting the dat file. There are two interesting binary fields in the saves. As part of the SAVEDATA_FILE_LIST data it includes the filename for the .DAT file, as well as a 16byte value. I agree it looks a lot like ...

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weak wrote:
> ...what is tolerable and what is not. let the mods decide, they are the ones who run this board...

Ok, let them thrash it out. I've retracted any negative comments I've said about the policies.

Commentary: General knowledge of a standard algorithm is useful, but in my experience companies can be tricky and tweek the algorighm a little [keeping the crypto robustness, but making it slightly non standard] Ignoring the significant computation time needed to "crack" a key, you may be ...

Commentary: Promising, however the usefulness will be limited if Sony does the obvious thing of encrypting the code transfered between the two PSPs (ie. the actual data bits sent inside the custom transfer protocol) [[ Ignoring the software pirating and website or netstats spoofing applications, the...

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Duplicated post / forked topic: http://forums.ps2dev.org/viewtopic.php?t=1353 repeated reply: > I am not sure if this is a known thing or not. Known thing in the Sony CLIE domain. News for PSP users (then again everything is new for PSP users ;-) ----- Sonic Stage handles two different modes, ATRAC ...

> I am not sure if this is a known thing or not. Known thing in the Sony CLIE domain. News for PSP users (then again everything is new for PSP users ;-) ----- Sonic Stage handles two different modes, ATRAC and MP3 So does the PSP, so does the CLIE MP3: You can use Sonic Stage to transfer MP3 files. ...

Hooking up USB adapter cables alone is not enough, either are drivers. Unless the PSP hardware supports "USB On The Go" (USB-OTG) in both hardware and software this simple cable scenario isn't going to happen. AFAIK the PSP doesn't support USB-OTG (at least not now -- how it does the keybo...