Citations

  • Kahn 1967 (†849)

    Kahn, David. The Codebreakers: the Story of Secret Writing. New York: Macmillan,1967.

Existing Citations

  • cryptography (n.p.): cryptography, on the other hand, do not conceal the presence of a secret message but render it unintelligible to outsiders by various transformations of the plaintext. (†2378)