An Improved ZS Algorithm for High - Speed Synchronous Stream Ciphers


The KIPS Transactions:PartC, Vol. 9, No. 3, pp. 307-312, Jun. 2002
10.3745/KIPSTC.2002.9.3.307,   PDF Download:

Abstract

Among the various zero suppression (ZS) algorithms used in a for synchronous stream cipher system, a ZS-2 exhibits certain good properties, including the omission of the block synchronization, easy implementation, etc., yet also a weakness in channel error propagation. Accordingly, This paper proposes a new method by minimizing the bit-wide substitution in the substitution blocks of ZS-2 to improve the degenerated error property in a noisy channel. As a result, the proposed ZS-3 algorithm can decrease the mean error propagation by about 18.7% over that of ZS-2 at n = 8.


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Cite this article
[IEEE Style]
H. J. Lee, "An Improved ZS Algorithm for High - Speed Synchronous Stream Ciphers," The KIPS Transactions:PartC, vol. 9, no. 3, pp. 307-312, 2002. DOI: 10.3745/KIPSTC.2002.9.3.307.

[ACM Style]
Hoon Jae Lee. 2002. An Improved ZS Algorithm for High - Speed Synchronous Stream Ciphers. The KIPS Transactions:PartC, 9, 3, (2002), 307-312. DOI: 10.3745/KIPSTC.2002.9.3.307.