Gilbert Vernam

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Gilbert Sandford Vernam (born April 4, 1890 in Brooklyn , New York , † February 7, 1960 ) was an American engineer employed by AT&T ( Bell Labs ) . In 1917 he invented the Vernam cipher , a stream cipher , and was then involved with Joseph O. Mauborgne in the reinvention of the one-time pad encryption method, originally invented in 1882 by the American cryptologist Frank Miller (1842-1925) but was forgotten again.


  • John William Leonard (Ed.): Who's Who in Engineering. A Biographical Dictionary of Contemporaries 1922-1923. Leonard, Brooklyn Borough [et al.] [1922]