Wednesday, January 26, 2011

VSH Exploit

Finally some "proof" to the exploit, I guess. It still is terribly unstable, and probably not very useful to others at the moment with all the wrapped homebrew, and even ISO homebrew more recently. If anything, it may be useful in the future on newer firmwares, because the crash still occurs in 6.37, and every firmware we've tested it on works. Let it just be a reminder that there is still plenty of hidden exploits in the firmware that Sony hasn't caught yet, for those who are still looking.

This video(made by TiPi :P) shows him setting up the PSP, showing what's on it and the OFW version.(5.50, in this case) He then hides the exploit action, and when the PSP is tilted back, we're in VSHBL, as we like to call it, some1's port of the homebrew loader to VSH. PSP-Filer is run, and all the contents of flash0 are shown, since VSH mode has full access.

Credits obviously go to TiPi, who found the crash, I noticed the exploit in the crash, and some1 helped us get the exploit up and working. Along with us 3, who have spent quite a while getting to this point, many people helped out. m0skit0, wololo, JJS, and Davee, to name a few, all helped us out, and possibly others I am not remembering at the moment.

For those curious, by what I mean with "unstable", although on 1000's the exploit works out of the package, so to speak, on newer PSP's, the only ones it would really matter on, the exploit needs tailoring to get it work, hence it not being very useful to others at the moment. We're working on it :P It's far from unstable in the traditional sense, once the file is fixed, it works 100% of the time.

Thursday, January 20, 2011

Needs to be said...

This has been bugging me the last few days, so I'll say it.


The so called "signed" homebrew and HENs that have been released so far are all using a trick that requires the encryption keys, hence the name of the tool, PSPencrypter and NOT PSPsign. The tool encrypts the homebrew, and wraps it with a demo games signed "box", so to speak. This tricks the system into thinking it is signed. People on #pspcommunity have been calling these wrapped homebrew, considering that's exactly what they are. Some have also been using "signed", with the quotes, however I find this will confuse people when signing is possible in the future.

Don't get me wrong though, this is still very useful, but it's not done, and there is still a lot to be done before signing is possible. I have not tested the new 6.37, but most likely this trick has been fixed, if not, it will probably be fixed in the next one, so don't expect these wrapped homebrew to work forever.

Saturday, January 15, 2011

[Game Review] Dungeon Defenders

About time I get something into the Android category. I was going to post this yesterday, though I'm glad I didn't. This morning I awoke to version 2.0, which made some nice improvements.

For those who don't know, Dungeon Defenders is a cross between tower defense and action RPG genres, each class having it's own summonable defences and weapons. The gameplay is very reminiscent of tower defense maps on Starcraft and Warcraft, but with character building, and of course, it's mobile.

Friday, January 14, 2011

[MIPS/C] Tiny little search function

I thought I would share this, since I'm sure someone else might be able to use it. Some1 asked me to write a function to search for a string and return its location, in order to find functions in a PSP VSH exploit. The function is simple enough, it searches for the first letter of your null-terminated string, and once it does, loops through the string to test if the next characters are the same, if not, it goes back and looks for the first character again. It returns 0 if nothing was found.

Monday, January 10, 2011

Catching up

Well there I go again, getting behind on my blog.

Lots has happened in the last week and a half, I won't be making in depth articles on each because I'm sure most people coming here would know them already.

Saturday, January 1, 2011

[Game Review] Kingdom Hearts Birth by Sleep

A little late, but it's a new year, give me a break :P Speaking of which, Happy New Years to everyone :)

Kingdom Hearts Birth by Sleep was one of those games I knew I had to get the second I heard of it, being a big fan of the Kingdom Hearts series. One of the foolish things I kind of wished for was for it to be similar to the PS2 games. Oh how glad I am that it isn't anything like them, because I love the way it is.