Original file (327 × 328 pixels, file size: 52 KB, MIME type: image/png)

    Summary

    Description
    English: The first page of al-Kindi's "Manuscript on Deciphering Cryptographic Messages", containing the oldest known description of cryptanalysis by frequency analysis.
    Date unidentified manuscript, unknown source or date; uploaded 2007-01-11 22:23
    Source en:Image:Al-kindi_cryptographic.gif
    Author unknown, uploader en:User:Jidan

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    Original upload log

    Date/Time Dimensions User Comment
    8 June 2008, 19:45:35 327 × 328 (48297 bytes) RsAzevedo (talk · contribs) {{Information |Description={{en|1=The first page of al-Kindi's manuscript "On Deciphering Cryptographic Messages", containing the oldest known description of cryptanalysis by frequency analysis.}} |Source=[[:en:Image:Al-kindi_cryptographic.gif]] |Author=[

    Captions

    The first page of al-Kindi's "Manuscript on Deciphering Cryptographic Messages"

    Items portrayed in this file

    depicts

    copyright status

    public domain

    media type

    image/png

    checksum

    ee860eec1cf9d1f7f8dc583b2b83b3f87159dd4d

    determination method or standard: SHA-1

    data size

    53,013 byte

    height

    328 pixel

    width

    327 pixel

    File history

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    Date/TimeThumbnailDimensionsUserComment
    current17:19, 11 August 2014Thumbnail for version as of 17:19, 11 August 2014327 × 328 (52 KB)GifTaggerBot: Converting file to superior PNG file. (Source: Al-kindi_cryptographic.gif). This GIF was problematic due to non-greyscale color table.

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