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About this iReport
  • Not vetted for CNN

  • Click to view thestyx's profile
    Posted June 17, 2009 by
    Location
    Tehran
    Assignment
    Assignment
    This iReport is part of an assignment:
    Unrest in Iran

    More from thestyx

    STOP SPREADING FAKE DOCUMENTS! [Forgery: interior ministry letter to supreme leader]

     

    Please stop sending, sharing and spreading this fake letter. We made fun of Ahmadinejad because of Photoshopping the crowd in Keyhan newspaper, now it's so stupid to do exactly the same.

     

     

    Why would we need to fake and fabricate documents to prove ourselves?

    THAT JUST MAKES US LOOK FAKE!

     

    SEMPER FI,

    TheStyx

     

     

     

    PROCESS:

    There are two levels to analyze a document. One is technical and the other one is official. In technical analysis, we usually look for 'overlayed' layers, we perform a pixel density check and get a overlay level histogram map. If the histogram is too jagged, it means that the document modified with different level of colors. If the pixel density mismatched it also means that the layers of document aren't from the same originality.

     

    In official validation level, we compare the document with the same verified documents. Seal, letterhead and even signature are checked in this stage.

     

    In that particular document, we don't even have a refrence number. It means that the document can never be verified.

     

    Of course there's a third level that is social analysis, which includes the probability of existence of the document by social engineering. For example, we figure how it's possible that the document leaked and also we study the contents of the letter and grammar. Of course I didn't put up the social report in here.

     

    I hope it was helpful.

     

    SEMPER FI,

    TheStyx

     

    P.S. I published this for further disambiguation

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