A question about SLIC 2.1 table and SLP key

Discussion in 'Windows 7' started by shady, Aug 27, 2009.

  1. shady

    shady MDL Novice

    Aug 25, 2009
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    #1 shady, Aug 27, 2009
    Last edited: Aug 27, 2009
    Hi team,

    Can anyone please tell me, if I have a SLIC 2.1 table and a valid OEM cert then can we generate SLP keys from them by reverse engineering?

    If it is possible then how we can achieve the goal? (For educational purpose only :) )
     
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  2. Stormcrow

    Stormcrow MDL Junior Member

    Jul 30, 2009
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    No.

    The key is not tied to the SLIC / Cert pair, rather to the verision of windows you are installing.



    --
    SC
     
  3. shady

    shady MDL Novice

    Aug 25, 2009
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    So how does the encryption math works for activation? I need a very clear picture of the algorithm behind it. Can any one help me or point to some tut?
     
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  4. frwil

    frwil MDL Addicted

    Sep 22, 2008
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    First, system detects the type of installed key by it's PID. If it appears to be OEM:SLP, then it checks if there's ACPI SLIC table loaded in memory and if this table is valid. If it is, it searches for matching oem-certificate inside tokens.dat file. If it's there, properly installed, then system is considered activated.
     
  5. ifeife2

    ifeife2 MDL Member

    Apr 25, 2008
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    #5 ifeife2, Aug 27, 2009
    Last edited by a moderator: May 23, 2017
    crypto is the resident expert : )
     
  6. shady

    shady MDL Novice

    Aug 25, 2009
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    Thanks. I'll pm him.
     
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  7. frwil

    frwil MDL Addicted

    Sep 22, 2008
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    #7 frwil, Aug 28, 2009
    Last edited by a moderator: May 23, 2017