Pseudorandom Function

Pseudorandom Function definition in Computer Security terms:

Acronym(s): PRF

Definition(s): 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

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 800-132
NIST SP 800-135 Rev. 1

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

Synonym(s): None

 

reference: CSRC Glossary