Image:Al-kindi-cryptanalysis.png

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The first page of al-Kindi's manuscript "On Deciphering Cryptographic Messages", containing the oldest known description of cryptanalysis by frequency analysis.

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current11:34, 20 April 2005327×328 (42 KB)Sador (The first page of al-Kindi's manuscript "On Deciphering Cryptographic Messages", containing the oldest known description of cryptanalysis by frequency analysis. {{PD}})
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