Semiconductor & Computer Engineering
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Difference between revisions of "linear feedback shift register"
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'''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 generator|keystream generators]]. | '''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 generator|keystream generators]]. | ||
Revision as of 19:36, 31 July 2017
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.