Feistel cipher

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English[edit]

Etymology[edit]

Named after the German-born physicist and cryptographer Horst Feistel.

Noun[edit]

Feistel cipher (plural Feistel ciphers)

  1. (cryptography) A symmetric structure used in the construction of block ciphers. It is an iterated cipher with an internal function called a round function.
    Synonym: Feistel network
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