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[POC] Beta PKG Installation on retail 3.15

Open discussions on programming specifically for the PS Vita.
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Kankertje
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Re: [POC] Beta PKG Installation on retail 3.15

Post by Kankertje »

kiragon1 wrote:whether it is possible in this way to install PSP games in the pkg?
Wont run without license, afaik that wasnt cracked on psp and vita probably has more security anyway
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tomtomdu80
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Re: [POC] Beta PKG Installation on retail 3.15

Post by tomtomdu80 »

It will run if it's drm free and valid eboot.bin
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hgoel0974
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Re: [POC] Beta PKG Installation on retail 3.15

Post by hgoel0974 »

tomtomdu80 wrote:It will run if it's drm free and valid eboot.bin
so do you guys have a way of generating EDATs? Since the only way I can think of for disabling the DRM stuff is to set a certain flag in the EDAT, but a portion of it is hashed with AFAIK is an unknown CMAC key?
"If the truth is a cruel mistress, then a lie must be a nice girl"
J3LACK.EAGLE
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Re: [POC] Beta PKG Installation on retail 3.15

Post by J3LACK.EAGLE »

hgoel0974 wrote:
tomtomdu80 wrote:It will run if it's drm free and valid eboot.bin
so do you guys have a way of generating EDATs? Since the only way I can think of for disabling the DRM stuff is to set a certain flag in the EDAT, but a portion of it is hashed with AFAIK is an unknown CMAC key?
whats an AFAIK
UnLuck3R
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Re: [POC] Beta PKG Installation on retail 3.15

Post by UnLuck3R »

AFAIK == as far as i know
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tpu
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Re: [POC] Beta PKG Installation on retail 3.15

Post by tpu »

hgoel0974 wrote:
tomtomdu80 wrote:It will run if it's drm free and valid eboot.bin
so do you guys have a way of generating EDATs? Since the only way I can think of for disabling the DRM stuff is to set a certain flag in the EDAT, but a portion of it is hashed with AFAIK is an unknown CMAC key?
EDAT key, used by PSP, have been found. NPUMDIMG key alse been found.
diesel701
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Re: [POC] Beta PKG Installation on retail 3.15

Post by diesel701 »

Great work guys! Keep working on it! :)

I have studyed a lot the pkgs of PS3. On PsVita, we can't extract and we can't create real signed pkgs.
What we can do is to create and extract pkgs signed with PSP AES keys.
You can do the tool by SKFU ;)

Anyway, you can try to create a pkg with Ps1 eboot or Minis eboot. We can extract them from PSP or PS3 pkgs and then re-package with PSP AES keys.
Maybe will not work (becouse license, type of eboot, ecc), but you can try it ;)

A question: on App and Game folder, the games are extracted (so you can see eboot, icon0, etc) or in other format? Lile psvimg or pkg?
samsara
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Re: [POC] Beta PKG Installation on retail 3.15

Post by samsara »

I highly doubt the Vita accepts the PSP's keys. No, not doubting it at all.
Proxima
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Re: [POC] Beta PKG Installation on retail 3.15

Post by Proxima »

Keep in mind there is a difference between signing and decrypting/encrypting. We cannot sign game pkg files on the PSP, PS3 or PSVita. They all are signed with the ECDSA Key:

x=0xE6792E446CEBA27BCADF374B99504FD8E80ADFEB
y=0x3E66DE73FFE58D3291221C65018C038D3822C3C9

We don't have the private key for that. The encryption keys for PS3 and PSP pkg files are known. So we can get the content out, and re-encrypt it, but can't make valid signed pkgs. The Beta PKG described here is in fact a properly signed pkg and is encrypted with the PSP key. If you check the signatures on the file, you will find they are all correct.
unknown_error
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Re: [POC] Beta PKG Installation on retail 3.15

Post by unknown_error »

Cool you used a kiosk ps vita to install a pkg! (My guess) now plz find a way to sign it so that it will run that will lead to piracy. Wait what? We don't support piracy right? Seriously now u probably got a msg showing plz download the game from the ps store right? (Cuz it's unsigned)
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