6/18/2023 0 Comments Vernam cipher![]() ![]() In cryptography, the one-time pad ( OTP) is an encryption technique that cannot be cracked, but requires the use of a single-use pre-shared key that is larger in size than or equal to the size of the message being sent. The table on the right is an aid for converting between plaintext and ciphertext using the characters at left as the key. ![]() National Security Agency, code named DIANA. (1958), "Automatic telegraph switching system plan 55-A", Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, 77 (2): 239–247, doi: 10.1109/ format of one-time pad used by the U.S. (April 1958), "Printing Telegraph Systems For Secret Wire and Radio Telegraphic Communications", Western Union Technical Review, 12 (2): 37 Also in Vernam, Gilbert S. (April 1932), "An Automatic Concentration Unit for Printing Telegraph Circuits", Electrical Communication: 200 (1926), "Cipher Printing Telegraph Systems For Secret Wire and Radio Telegraphic Communications", Transactions of the American Institute of Electrical Engineers, 55: 109–115, doi: 10.1109/T-AIEE.1926.5061224, S2CID 51639806 (June 19, 1998), Fish and I (PDF), archived from the original (PDF) on Janu, retrieved Ap.
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