Image: Al-kindi cryptographic
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Description: The first page of al-Kindi's manuscript "On Deciphering Cryptographic Messages", containing the oldest known description of cryptanalysis by frequency analysis.
Title: Al-kindi cryptographic
Credit: en:Image:Al-kindi_cryptographic.gif
Author: Al-Kindi
Usage Terms: Public domain
License: Public domain
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Image usage
The following 2 pages link to this image:
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