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how to bypass PS3 software update 4.21

Discussion in 'PS3' started by theslayor, Sep 6, 2012.

  1. theslayor

    theslayor Member

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    Hi,
    Is there anyway to bypass the PS3 software update and play online, I'm on 4.11 official firmware and don't want to update so if there is please tell me and how to do it.
    Thanks
     
  2. Eisherz

    Eisherz Active member

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    No, there isn't. But why don't you want to update from 4.11 to 4.21? If you were on 3.55 I could understand that, but 4.11?
     
  3. knfusd

    knfusd Regular member

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    Eisherz is right but only if you wish on using psn (playstation network) if you're not than just turn off your auto update in setting then you cant be updated unless you want to
     
  4. theslayor

    theslayor Member

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    My brother says I shouldn't in case someone jailbreaks it
     
  5. Eisherz

    Eisherz Active member

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    Not going to happen.
     
  6. theslayor

    theslayor Member

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    Is it completely impossible?
     
  7. Cyprien

    Cyprien Active member

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    heh... unless you know how to crack ECDSA

    y^2 = (x^3 + a * x + b) mod p

    this is the equation

    the PS3 uses 160bit ECDSA algorithm so any vital key is encrypted by it
    normal 160bit is 49 digits long.... now that's not enough.... you also have to find the random number used in the encryption and that number can be anything(any length) and that impossible by itself....

    example of 160bit keys using the equation
    Modulus:
    1461501637330902918203684832716283019653785059327
    Coefficient A:
    1461501637330902918203684832716283019653785059324
    Coefficient B:
    163235791306168110546604919403271579530548345413
    Base Point
    X: 425826231723888350446541592701409065913635568770
    Y: 203520114162904107873991457957346892027982641970
    Subgroup Order:
    1461501637330902918203687197606826779884643492439
    Cofactor:
    1

    Private Exponent:
    542053241409584231606641348297804563147909139481

    Public Element:
    X: 1330662819286567003101256740359821157367793328918
    Y: 294709699265533759639226491877167235372762906422

    and there are just simple numbers my friend lol the basic idea is this R = k*P EVEN IF you work out the R and the P "k" will never be found and the "K" is important here lol

    ECDSA is here to stay it cannot be broken even simple DSA cant be defeated :3

    i sugest you to read http://en.wikipedia.org/wiki/Elliptic_Curve_DSA to learn more on the subject it will make your head hurt for sure ^__^
     
  8. Schreiber69

    Schreiber69 Member

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    no i dont think so because i hav a friend that i was playing with that was jailbroke on 4.10 so im guessing its possible
     

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