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PS3 packages and how it leads to PSP signing
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Re: PS3 packages and how it leads to PSP signing
I am using the 3.41 update and the respective keys from the spreadsheet Matieulh posted. So you are saying that you can decrypt that inner sprx?
Re: PS3 packages and how it leads to PSP signing
Ah, my bad...you're one step aheadJJS wrote:So you are saying that you can decrypt that inner sprx?
I could decrypt emulator_drm.sprx, haven't (yet) tried anything with the one that's hiding inside it...
Edit: any reason you're using isokey instead of appkey?
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Re: PS3 packages and how it leads to PSP signing
Yes, appkey obviously doesn't work. Isokey gives me at least the output above.
Edit: vvvv Makes sense to me. If I can get it to compile, I will try to modify it.
Edit: vvvv Makes sense to me. If I can get it to compile, I will try to modify it.
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Re: PS3 packages and how it leads to PSP signing
I think the only reason it failed to be decrypted is that decrypt-self expect an 64 bit elf structure while the embedded elf has a 32 bit structure. It cannot read the sections properly.
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Re: PS3 packages and how it leads to PSP signing
viewtopic.php?f=20&t=1431
Here ya go, Wololo.
Here ya go, Wololo.
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Re: PS3 packages and how it leads to PSP signing
Thanks... I think we're pretty much there already, but this confirms what we found so far
Edit: Mathieu's latest posts:
Edit: Mathieu's latest posts:
Keep in mind that keys are useless without their algorithms, so go reverse that (it's also in spu_handler.isoself)
21?? web?? .Apparently the magicgate key should also be somewhere on the ps3 but I haven't found it yet.
29?? web?? .here are how some start : d76aa478... (HMAC key), 428a2f98... (AES key), 004080c01b5b9b... (AES key), 9802c4e6ec... (AES key) And so on...
32?? web?? .Want kirk keys? 1. Go to /dev_flash/pspemu/release/emulator_drm.sprx, decrypt it 2. get spu_handler.isoself, decrypt, grab keys. 3. Profit
If you need US PSN Codes, this technique is what I recommend.
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Re: PS3 packages and how it leads to PSP signing
Looks like I could successfully decrypt the file afterall . I was not sure until right now because it looks a bit like garbage and I have no experience with how a PowerPC binary can look. Also it has no readable strings at all.
What I mean is that I can see these values:
What I mean is that I can see these values:
All I did was changing the ELF-, program- and section- header to be 32 bit. The SELF header stays as it is. Also the sections in that file are only encrypted, not compressed.Wololo wrote:29?? web?? .here are how some start : d76aa478... (HMAC key), 428a2f98... (AES key), 004080c01b5b9b... (AES key), 9802c4e6ec... (AES key) And so on...
Re: PS3 packages and how it leads to PSP signing
The PS3Wiki says that the Data section is not automatically handled yet... that could explain why you're not seeing any readable string? (that being said, there should be readable strings outside of the data section...)
so...errr, I guess now comes the part to decompile this ELF?
so...errr, I guess now comes the part to decompile this ELF?
If you need US PSN Codes, this technique is what I recommend.
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Re: PS3 packages and how it leads to PSP signing
I'll be waiting for someone to release the assembly of spu_handler.isoself.
Re: PS3 packages and how it leads to PSP signing
The source code from decrypt-self tells me they are written, so this might be outdated info. There are no strings in emulator_drm.sprx either btw. Maybe this is also related to the fact that this is a module for an (isolated) SPU?Wololo wrote:The PS3Wiki says that the Data section is not automatically handled yet
Any volunteers?Wololo wrote:I guess now comes the part to decompile this ELF?