Title :
Extended Period LFSR Using Variable TAP Function
Author :
Molina-Rueda, Ariel ; Uceda-Ponga, Fernando ; Uribe, Claudia Feregrino
Author_Institution :
Inst. Nacional de Astrofisica Opt. y Electron., Puebla
Abstract :
This paper presents a method to extend the period of a linear feedback shift register (LFSR) by proposing an algorithm to generate primitive polynomials, this is archived by using basic LFSR with a maximum period equal to a prime number. The period extension achieved with our proposed method is statistically robust and has a very long extension of the LFSR period, as long of (2120)!(2N - 1) for a 127 bit length register. Also by separating the phases of setup and running in the algorithm avoid losing the characteristically speed of the LFSRs.
Keywords :
shift registers; TAP function; basic LFSR; extended period LFSR; linear feedback shift register; primitive polynomials; word length 127 bit; Clocks; Hardware; Information security; Internet; Linear feedback shift registers; Polynomials; Public key; Public key cryptography; Robustness; Writing; criptosystems; embeeded; extension; lfsr; period;
Conference_Titel :
Electronics, Communications and Computers, 2008. CONIELECOMP 2008, 18th International Conference on
Conference_Location :
Puebla
Print_ISBN :
978-0-7695-3120-5
DOI :
10.1109/CONIELECOMP.2008.8