Design of reconfigurable linear feedback shift register
Zhiyuan Wang · Journal of Computer Applications · 2009
Linear Feedback Shift Register(LFSR) is an important part of sequence cipher.This paper introduced a kind of reconfigurable LFSR design.As needed,it could be configured to be a random LFSR to run in GF(2),GF(28),GF(216) or GF(232) and in a certain length range.The prototype of the reconfigurable LFSR had been implemented in Altera's EP2S60F1020C5 FPGA and its highest run frequency was 100 MHz.It is proved through experiments that the reconfigurable LFSR design uses few hardware resources and its performance is stable.