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pkcrack free download

An implementation of a known plaintext attack on

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0KBFile Size :

noGUI :

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http://www.unix-ag.uni-kl.de/~conrad/krypto/pkcrack.htmlHomepage :

Peter ConradCreator :

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pkcrack Publisher's description

An implementation of a known plaintext attack on password encrypted ZIP archives (method published by Eli Biham and Paulem Kocher, see ftp://utopia.hacktic.nl/pub/crypto/cracking/pkzip.ps.gz).

For the attack to be successful you have to have at least 106 bytes of unencrypted compressed data from the given ZIP archive (the data must be compressed using the same compression method as the encrypted counterpart). Providing this, the sophisticated attack can be thousand times (or even more) faster than a brute force attack (considering non-trivial long password). The speed is affected by the amount of plaintext you have.

Alternative Windows software: None
Software requirements: None
Hardware requirements: None

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