Pseudorandom function (PRF)

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Abbreviation(s) and Synonym(s):

PRF

NIST SP 800-135 Rev. 1, NIST SP 800-53A Rev. 4, NIST SP 800-77 Rev. 1

Definition(s):

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NIST SP 800-56C [Superseded] under PRF

  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NIST SP 800-56C [Superseded] under Pseudorandom function

Glossary Comments

Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.

Comments about the glossary's presentation and functionality should be sent to secglossary@nist.gov.

See NISTIR 7298 Rev. 3 for additional details.

Information Technology Laboratory

Computer Security Resource Center

Computer Security Resource Center

Pseudorandom function (PRF)

Glossary Comments