Title :
Design of keystream generator
Author :
Chan, Chi-Kwong ; Cheng, L.M.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
fDate :
6/11/1998 12:00:00 AM
Abstract :
A new design of nonlinear combination generator is proposed. The nonlinear combining function employed is changed dynamically by permuting the variables in the nonlinear function. Simulated results show that the linear complexity of the resulting keystream is lower bounded by half the period of the keystream
Keywords :
computational complexity; functions; security of data; sequences; shift registers; LFSR; data security; keystream generator; linear complexity; linear feedback shift registers; nonlinear combination generator; nonlinear combining function; nonlinear function variables permutation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980824
