Gilbert Sandford Vernam (1890 – 7 February 1960) was a AT&T Bell Labs engineer who, in 1917, invented the stream cipher and later co-invented the one-time pad cipher. Vernam proposed a teletype cipher in which a previously-prepared key, kept on paper tape, is combined character by character with the plaintext message to produce the cyphertext. To decipher the ciphertext, the same key would be again combined character by character, producing the plaintext.

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  • Gilbert Sandford Vernam (1890 – 7 February 1960) was a AT&T Bell Labs engineer who, in 1917, invented the stream cipher and later co-invented the one-time pad cipher. Vernam proposed a teletype cipher in which a previously-prepared key, kept on paper tape, is combined character by character with the plaintext message to produce the cyphertext. To decipher the ciphertext, the same key would be again combined character by character, producing the plaintext. Vernam later worked for Postal Telegraph Co., and became an employee of Western Union when W.U. acquired Postal in 1943. His later work was largely with automatic switching systems for teletypewriter networks. (en)
  • Gilbert Sandford Vernam (1890-7 de febrero de 1960) fue un ingeniero de los laboratorios Bell y de AT&T. En 1917 inventó un cifrado en flujo y más tarde coinventó un cifrado de libreta de un solo uso. Vernam propuso un teletipo cifrado en el cual una clave previamente preparada y almacenada en cinta perforada se combina carácter por carácter con el mensaje en texto plano para obtener un texto cifrado. Para descifrar el texto cifrado, debe combinarse de nuevo con la clave carácter a carácter para producir el mensaje en texto plano. Vernam más tarde trabajó para la Postal Telegraph Co., y se convirtió en empleado de Western Union cuando ésta la adquirió en 1943. (es)
  • Gilbert Sandford Vernam (1890 – 7 febbraio 1960) era un ingegnere dei laboratori Bell Labs della AT&T che, nel 1917, inventò un cifrario a scorrimento e successivamente partecipò all'invenzione del cifrario One Time Pad. Vernam propose la costruzione di una telescrivente a cifre in cui una chiave determinata precedentemente, fornita attraverso un nastro perforato, consente di modificareviene combinata carattere per carattere con un messaggio di riferimento per costruire il corrispondente testo cifrato. Per decifrare il testo cifrato, deve essere utilizzata ancora la chiave combinandola carattere per carattere, in modo da riottenere il testo di riferimento. (it)
  • Gilbert Sandford Vernam (* 1890; † 7. Februar 1960) war ein bei AT&T angestellter US-amerikanischer Ingenieur. 1917 erfand er die Stromchiffre und war danach an der Erfindung des One-Time-Pad-Verschlüsselungsverfahrens beteiligt. (de)
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  • Gilbert Sandford Vernam (1890 – 7 February 1960) was a AT&T Bell Labs engineer who, in 1917, invented the stream cipher and later co-invented the one-time pad cipher. Vernam proposed a teletype cipher in which a previously-prepared key, kept on paper tape, is combined character by character with the plaintext message to produce the cyphertext. To decipher the ciphertext, the same key would be again combined character by character, producing the plaintext. (en)
  • Gilbert Sandford Vernam (1890-7 de febrero de 1960) fue un ingeniero de los laboratorios Bell y de AT&T. (es)
  • Gilbert Sandford Vernam (1890 – 7 febbraio 1960) era un ingegnere dei laboratori Bell Labs della AT&T che, nel 1917, inventò un cifrario a scorrimento e successivamente partecipò all'invenzione del cifrario One Time Pad. (it)
  • Gilbert Sandford Vernam (* 1890; � 7. Februar 1960) war ein bei AT&T angestellter US-amerikanischer Ingenieur. (de)
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  • Gilbert Vernam (en)
  • Gilbert Vernam (es)
  • Gilbert Vernam (it)
  • Gilbert Vernam (de)
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