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decrypter303 v1.1

Posted Jan 5, 2007 at 4:53AM EST by QJ Staff

Listed in: Homebrew Applications Tags: Jas0nuk, psp homebrews

0
jas0nuk has just updated his psardumper mod that can decrypt individual firmware modules from all known retail firmwares (1.00 to 3.03) and also works with all current game PRXs.

The latest version of the mod, decrypter303 v1.1 has the following features:

Supports sigchecked files if they were signed on the PSP they are being decrypted on
Can decompress RLZ files
The "sysmem_reboot.prx" chnged to "sysmem_rlz.prx" as it is used for both reboot.bin extraction and RLZ decompression.
Improved error handling. Note: if a file entirely fails to decrypt (e.g. EBOOT.BIN) it will be deleted to prevent memory stick corruption.
To save space, paths are printed as the filename, e.g 'audio.prx' instead of 'ms0:/enc/audio.prx' while decrypting

And some additional notes from its author:

For FW 1.2, I may integrate RLZ decompression algorithms into the app. If "sysmem_rlz.prx" is not in the 'enc' folder, a red warning will be displayed and RLZ decompression will not be possible.
decrypter303 v1.1 still cannot decrypt game EBOOT.BIN files ("unknown tag C0CB167C" error) because of a different encryption. I will see about adding this.

It is very important to read the readme file before using this app so please do that. Download link's below, you know the drill.

Download: [decrypter303 v1.1]
Discuss: [Forum Release Thread]

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Not really, they need to find an exploit first to boot any unsigned code from, then they need to find a way how to even downgrade it.

On the other hand, doesn't this mean we can use the newer topmenu_plugin.rco files if we have decrypted them (cause they have the newer icons in them)

Everyone says they're stored ON the flash, but tell me this, why do they revert back everytime you upgrade your PSP, it's because the firmware has the file in it as well and overwrites it each time.

# 3rd — Guest 2007-01-05 06:37

3rd

# What? — Guest 2007-01-05 06:38

Why do what revert back? The icons?

They don't. I use them on my PSP and they work fine.

# yeah man what good is this — Guest 2007-01-05 06:41

okay, i see all these Dycrypters comming out for dycrypting firmwares, but what purpose do they surve ? okay new stuff to add to the new custom firmwares and such like and there is not really much more we can add to them, ive got 2 psp's on on 3.03oe-a and a 3.00 and my brother a 2.81 and nothing ever comes of these things, and he'll if they can dycrypt decyript the Frigging sony signatures on the Eboot's come on i know nout about them or am i intrested in trying it , why don't developers stop waisting time with custom firmware and dycryptors and crack the eboot's signatures and then, there is no worries once we have that we can install what the hell we like to our psp's, i know its going to take a long time but more people doing the quicker it gets done. IF YOU HAVE ENOUGH MONKEYS THEY TOO CAN WRITE SHAKESPEAR

# ... — Guest 2007-01-05 07:01

(...at least monkeys can spell "Shakespeare" properly)

We could try one other game too - let's NOT upgrade, or if we're foolish enough to do so, then let's NOT whine unless we ourselves are hard at work at what we're whining about...

The estimate that I heard was that it would take a supercomputer some 1000 years (one or two more than the average PSP's life expectancy) to crack the 256-BIT AES ENCRYPTION found on the license code...

Thanks to the devs for at least TRYING despite the harsh odds... and if you've upgraded of your own free will, stay with the lowest firmware and just keep hoping - Rome wasn't built in a day.

--Databoy2k (I know... not logged in but w/e...)

# yeah — Guest 2007-01-05 07:26

i knwo i know i know, can't you see that i was not complaining about it all, hell its all good news but for the progress to really be made its the only way and im sorry, but 256-BIT AES ENCRYPTION ball ***** man they said that the Titanic can't sink and that the twin towers could survie a plance crashing into it and did they BOLLOX !

256-BIT AES ENCRYPTION MY ARSE ! it only takes time and time is on our side as all sony can do is force us to update and we all now know not to as the developers will allways find a way to copy, what ever is made can be copyed/duplicated.

people say you can't clone sheep, well geuss what darwin they f00king did it !

# Hey — Guest 2007-01-05 07:55

are you stupid? time is on our side? you are right the encryption can be broken, but you wil not likely live to see it if its brute forcing you are talking about (pretty much the only option), maybe not your kids either! and i dont think Charles Darwin mentioned anything about not being able to clone sheep. Unless you are talking about Darwin the talking dolphin from the B rated show seaquest. I didnt watch much of that, so I wouldnt know

# darwin Therory — Guest 2007-01-05 08:12

its to do with darwin and evolution, and ethics

# 2.81 emu Blues — Guest 2007-01-05 08:12

I understand none of this. I want my 2.81 PSP to play emulators. Can I do that? Flame me as much as you feel you need to but let me know if I can. Thank you.

# . — Guest 2007-01-05 08:26

in response to : are you stupid? time is on our side? you are right the encryption can be broken, but you wil not likely live to see it if its brute forcing you are talking about (pretty much the only option)

maybe if we made a program to share the load of the calculations, there are millions of people who could help cracking the AES, it would take considerably less time to crack it if we all work on it together...

# No. — Guest 2007-01-05 09:14

No. Wait and don't upgrade your firmware, eventually an exploit will be found for PSP's above FW2.80 .

# @dani — Guest 2007-01-05 15:12

you're not complaining, you're whining lol

# lame... — Guest 2007-01-05 15:20

i'd suggest all the "millions of people" to storm into sony corp and grab the decrypted w/e fuuck from them lol

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