Q: PKG Development "Hack"

Discussion in 'PS Vita - Hacking & Homebrew' started by MFRNCS, Apr 11, 2015.

  1. MFRNCS
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    MFRNCS Newbie

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    Hey guys, I just wonder why we struggle so much to hack the vita on the psp emulator, I mean there is a package installer.
    Is there any chance to develop "PKG emulators" that way we would be able to play emulators on native level right?
    And by any chance make some "PKG Editor" so we can edit full vita PKG games to trick the vita its DRM free.

    *Outside the box* Would be cool to somehow install a CFW in the PKG installer somehow..

    These are just thoughts, maybe you all already discussed this but I could not find anything.

    Please respond with your thoughts!

    EDIT: Another thought - Would it be possible to develop a "overclocked" CFW for the PSP that would allow us to use it for the vitas ePSP to run emulators and such with the vitas full speed?
     
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  2. Tom Bombadildo

    Tom Bombadildo Honk!

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    I forgot
    Sure, just crack the Vita's native encryption and we'll be on our way :^)

    Oh wait.

    The reason there hasn't been any native Vita hacks is because we have yet to find any easy way to either spoof or bypass the encryption check on the Vita. Everything that runs on the Vita in Vita mode has to be signed with a private key, a key only Sony has access to. If we don't have the key, we can't run any unsigned code we want the Vita to run that would lead to homebrew and whatever. There are ways around this, by bypassing the check, making code "appear" to be signed by running it through something else etc, but so far none of the above has ever really happened. There was a userland exploit found ages ago that would've given coders the same access games have from the Vita and would've allowed for native homebrew, but it was quickly patched and was basically regarded as useless by the various teams who discovered it.

    Regarding your other question, no, it wouldn't be possible to "overclock" eCFW in PSP mode, because PSP mode is run in a sandbox that only has access to PSP-level "hardware" in a sense. There's nothing anyone can do to break out of this sandbox without access to the Vita's native firmware...which in turn wouldn't matter at that point, since we could just run things in Vita mode.
     
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  3. MFRNCS
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    Hmm, ok. Then it would be awesome if we somehow can make a CFW as a pkg file and somehow sign it with a already existing key from some other game demo or something.

    Another funny thought is if we would be able to open a vita sd card in pc withouth using the vita as "hub" that way we might be able to hack vita through the memory card?

    EDIT: To hack the card, something like this but with the vita card: https://gbatemp.net/attachments/mmc_adapter-jpg.3627/
     
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  4. Tom Bombadildo

    Tom Bombadildo Honk!

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    I forgot
    Don't double post.

    If it were simply as easy as "sign it with an existing key" it would've been done years ago, but it's not.

    Regarding memory cards, they have already been dumped almost a year ago and have been confirmed to be for the most part encrypted. There are sections that are unencrypted, but they are completely useless to any native hacker.

    Chances are, any random idea you happen to have about hacking the Vita has probably already been tested. Sony didn't mess around with their security this
    time around like they did the PSP. The Vita hasn't been hacked for a lack of trying, it's because it's been proven to be incredibly difficult.

    Do more research on your "ideas" before asking about them, go to wololo.net and read some of Yifan Lu's old Vita blog posts http://yifan.lu/
     
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  5. MFRNCS
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    MFRNCS Newbie

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    Ok! Thank you for your responses! Im a former Android hacker, but this is a whole new level. Will check the blogs! Thanks!
     
  6. Duo8

    Duo8 I don't like video games

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    For something so "secure" they do leave a lot of minor holes.
     
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  7. Tom Bombadildo

    Tom Bombadildo Honk!

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    I forgot
    If you're referring to PSP mode, I would wager it's purely because they just don't give a shit about PSP mode with the way the PSP hacking scene turned out. I would assume they're well aware of how shoddy their software on the PSP was and just realizes that there's not much they can do to prevent PSP mode exploits outside of removing PSP mode completely...which they'll never do. At this point, why should they give additional fucks if someone wants to run years old homebrew and last gen games on a Vita rather than a PSP? It's not like any of the PSP mode exploits will ever make it outside of the sandbox they set up anyways.
     
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  8. Duo8

    Duo8 I don't like video games

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    Ah, I mean how they don't encrypt certain connections, allowing tricks like the update blocker. Or the CMA software.

    Anw none of those things cause any real damage.
     
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