Playfair cipher

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English[edit]

English Wikipedia has an article on:
Wikipedia

Etymology[edit]

Named after Lord Playfair, who promoted it. (It was invented in 1854 by Charles Wheatstone.)

Noun[edit]

Playfair cipher (plural Playfair ciphers)

  1. A manual symmetric encryption technique that encrypts pairs of letters (digraphs).
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