W.G. Chambers, Simon J. Shepherd
Abstract
Two keystream generators are described that use mutual clock control between a number of sequence generators. One is the T52e cipher, and the other uses three linear feedback shift registers. In the latter the register periods can lock together, giving an anomalously short period. Methods for avoiding this are described.
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Two keystream generators are described that use mutual clock control between a number of sequence generators. One is the T52e cipher, and the other uses three linear feedback shift registers. In the latter the register periods can lock together, giving an anomalously short period. Methods for avoiding this are described.
Key concepts: Keystream, Stream cipher, Cipher, Shift register, Running key cipher, Computer science, Linear feedback shift register, Lock (firearm)