Russian copulation

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English[edit]

English Wikipedia has an article on:
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Etymology[edit]

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun[edit]

Russian copulation (uncountable)

  1. (cryptography) A method of rearranging plaintext before encryption by breaking it into two parts and inverting their order, so as to conceal obvious headers, salutations, signatures, etc.
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