ciphertext autokey cipher

ciphertext autokey cipher

[′sī·fər‚tekst ′ȯd·ō‚kē ‚si·fər]
(communications)
A stream cipher in which the cryptographic bit stream generated at a given time is determined by the ciphertext generated at earlier times.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.