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Linear-feedback shift register and Stream cipher

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Linear-feedback shift register and Stream cipher

Linear-feedback shift register vs. Stream cipher

In computing, a linear-feedback shift register (LFSR) is a shift register whose input bit is a linear function of its previous state. A stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream).

Similarities between Linear-feedback shift register and Stream cipher

Linear-feedback shift register and Stream cipher have 14 things in common (in Unionpedia): A5/1, A5/2, Alternating step generator, Bit, Cipher, Cryptanalysis, Exclusive or, Known-plaintext attack, Nonlinear-feedback shift register, Periodic function, Pseudorandom number generator, Pseudorandomness, Shift register, Shrinking generator.

A5/1

A5/1 is a stream cipher used to provide over-the-air communication privacy in the GSM cellular telephone standard.

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A5/2

A5/2 is a stream cipher used to provide voice privacy in the GSM cellular telephone protocol.

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Alternating step generator

In cryptography, an alternating step generator (ASG) is a cryptographic pseudorandom number generator intended to be used in a stream cipher.

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Bit

The bit (a portmanteau of binary digit) is a basic unit of information used in computing and digital communications.

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Cipher

In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a procedure.

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Cryptanalysis

Cryptanalysis (from the Greek kryptós, "hidden", and analýein, "to loosen" or "to untie") is the study of analyzing information systems in order to study the hidden aspects of the systems.

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Exclusive or

Exclusive or or exclusive disjunction is a logical operation that outputs true only when inputs differ (one is true, the other is false).

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Known-plaintext attack

The known-plaintext attack (KPA) is an attack model for cryptanalysis where the attacker has access to both the plaintext (called a crib), and its encrypted version (ciphertext).

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Nonlinear-feedback shift register

A nonlinear-feedback shift register (NLFSR) is a shift register whose input bit is a non-linear function of its previous state.

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Periodic function

In mathematics, a periodic function is a function that repeats its values in regular intervals or periods.

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Pseudorandom number generator

A pseudorandom number generator (PRNG), also known as a deterministic random bit generator (DRBG), is an algorithm for generating a sequence of numbers whose properties approximate the properties of sequences of random numbers.

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Pseudorandomness

A pseudorandom process is a process that appears to be random but is not.

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Shift register

In digital circuits, a shift register is a cascade of flip flops, sharing the same clock, in which the output of each flip-flop is connected to the 'data' input of the next flip-flop in the chain, resulting in a circuit that shifts by one position the 'bit array' stored in it, 'shifting in' the data present at its input and 'shifting out' the last bit in the array, at each transition of the clock input.

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Shrinking generator

In cryptography, the shrinking generator is a form of pseudorandom number generator intended to be used in a stream cipher.

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The list above answers the following questions

Linear-feedback shift register and Stream cipher Comparison

Linear-feedback shift register has 89 relations, while Stream cipher has 86. As they have in common 14, the Jaccard index is 8.00% = 14 / (89 + 86).

References

This article shows the relationship between Linear-feedback shift register and Stream cipher. To access each article from which the information was extracted, please visit:

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