NSA
THE UNBREAKABLE CIPHER
pocrn: 3927949"Non - k espo n .s ivepproved for release by NSA on 11-29-2011, Transparency Case#3852BY H. CAMPAIGNEUnclassifiederDoes there exist an. unbreakable cipher?Edgar Allan Poe said "it may be roundly asserted that human in-genuity cannot concoct a cipher which human ingenuity cannot re-solv~."Professor Littlewood, in A Mathematician's Miscellany (MethuenLondon 1957, p...
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Internal Periodicals & Publications
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Internal Periodicals & Publications
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2135.6 KB