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November 29, 2010 // 7:43 pm - A few weeks back graf_chokolo announced that he decrypted PS3 Firmware 3.50 and work on a free public PS3 Downgrader was underway, followed by a PSGroove Payload update to decrypt PKGs from PlayStation 3 PUP Files with today's update including the OtherOS.self and Lv2diag.self from a PS3 Service JIG decrypted!

Download: Decrypted Lv2diag.self from PS3 Service JIG (Teaser)

To quote via xorloser's blog, linked above, on the PS3 appldr interface reversal progress:

graf_chokolo says: Guys, i know you are waiting for the USB Dongle Master Key from me I have got now 2 fat PS3 with HV 3.15 but unfortunately no SX28 development board yet to exploit it

But i was not idle and the last and this week i was working on reversing of self decryption. And now i'm able to decrypt SELFs and SPRXs on my exploited GameOS by using HV calls only and no GameOS functions at all I reversed the interface to appldr which decrypts SELFs on GameOS 3.41.

So you won't get bored until i get the USB Dongle Master Key, i will make my findings and my source code public very soon and you will be able to decrypt your favourite games and programs by yourself :-) Let the fun begin, guys

Here is a "small" teaser of decrypted Lv2diag.self from service JIG

You cannot decrypt isolated SPUs with appldr, i think, because they are decrypted by isoldr.

I'm able to decrypt hdd_copy.self from 3.42 but not from 3.50

otheros.self decrypted

Graf Chokolo Decrypts OtherOS.self, PS3 Service JIG Lv2diag.self

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#31 - greenoli - November 30, 2010 // 11:19 pm
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can you decrypt the hdd_copy.self from 3.50 i mean is it gonna work for 3.50 eventually or not?

#30 - sinkec - November 30, 2010 // 11:18 pm
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when the downgrade will be over do i need some jailbreak device or it will be i possible to install from any usb.

i'm on 3.50 so i'm asking you shell i buy it or not, and you let me now should i stay or should i go.

#29 - Sostanco - November 30, 2010 // 11:04 pm
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Great news! Kee up the good work!

#28 - Krachwas - November 30, 2010 // 10:08 pm
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The Master Key geohot found out was "BEACON" or what was it?

Just thought about something with keys, if I'm wrong just tell me

But anyways, great work!

#27 - mushy409 - November 30, 2010 // 7:46 pm
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That's why the SX28 board is needed to glitch the bus & dump the LV1.

Just a quicky to everyone - could I modify a PIC 18F2455 circuit to produce the pulses needed for the glitch attack? I remember reading something about shorting 2 of the output pins on the IC to get the clock pulses.

Any ideas? I could knock one up & get it posted to him in the next 24 Hours.

#26 - Prince Valiant - November 30, 2010 // 5:15 pm
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Quote Originally Posted by Sublimewulf View Post
Decrypting the master key is not possible in the method that he is attempting do it in, the hypervisor will dump a dummy key instead.

Alright, thanks for the information.

#25 - Sublimewulf - November 30, 2010 // 4:59 pm
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Decrypting the master key is not possible in the method that he is attempting do it in, the hypervisor will dump a dummy key instead.

#24 - Prince Valiant - November 30, 2010 // 4:24 pm
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Assuming I've read this correctly, will I be able to decrypt and use the emulator selfs that are on my console ? Once it gets released anyway.

#23 - costocart - November 30, 2010 // 3:39 pm
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keep up the good work mate

#22 - demon007 - November 30, 2010 // 12:10 pm
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awesome work, cant wai't for otheros to be working on my 3.41 slim with jb support still intact