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Pseudorandom function (PRF)

Abbreviation(s) and Synonym(s):

PRF

Definition(s):

  Pseudorandom Function.
Source(s):
NIST SP 800-108 under PRF
NIST SP 800-56C under PRF [Superseded]

  A function that can be used to generate output from a random seed and a data variable such that the output is computationally indistinguishable from truly random output.
Source(s):
NIST SP 800-108 under Pseudorandom  function

  A function that can be used to generate output from a random seed and a data variable, such that the output is computationally indistinguishable from truly random output.
Source(s):
NIST SP 800-135 Rev. 1

  See Pseudorandom Function.
Source(s):
NIST SP 800-185 under PRF

  A function that can be used to generate output from a random seed such that the output is computationally indistinguishable from truly random output.
Source(s):
NIST SP 800-185 under Pseudorandom Function (PRF)

  A function that can be used to generate output from a secret random seed and a data variable, such that the output is computationally indistinguishable from truly random output. In this Recommendation, an approved message authentication code (MAC) is used as a pseudorandom function in the key expansion step, where a key derivation key is used as the secret random seed.
Source(s):
NIST SP 800-56C under Pseudorandom function [Superseded]