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From WikiChip
Linear Feedback Shift Register (LFSR)
Revision as of 23:56, 10 March 2023 by 90.219.59.92 (talk) (Undoing spam Undo revision 101162 by 117.71.110.171 (talk))
Linear feedback shift register (aka LFSR) is a finite-state machine made of a linear shift register in which the output is fed back into itself as part of the input. LFSRs are typically made of an adder, shift register, and a constant multiplier (often a simple XOR gate). LFSRs are also called Autonomous LFSR or ALFSR because besides the clock, it doesn't need any other input. LFSRs are the basic components of many keystream generators.