Feedback Shift Registers

Linear-feedback shift register

Linear-feedback shift registers (LFSRs) are shift registers whose input bit is a linear function of its previous state, usually XOR. They are used to generate pseudo-random numbers, counters, and whitening sequences, and their mathematics are related to those of cyclic redundancy checks. LFSRs are elegant objects to study and implement, but other methods may perform better.

1 courses cover this concept

15-354 Computation & Discrete Math

Carnegie Mellon University

Spring 2021

This advanced course reexamines traditional concepts of discrete mathematics (relations, functions, logic, graphs, algebra, automata) in the context of computation and algorithms, necessitating a strong background in discrete math.

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