PRF

{
  "id": "MLC-T-CYB-003225",
  "term": "PRF",
  "field": "Cybersecurity",
  "definition": "1. 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.\n\n2. Pseudorandom Function.\n\n3. 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.",
  "expansions": [
    "Pseudorandom function",
    "Pseudo-random Function"
  ],
  "references": [
    "NIST SP 800-108 [Superseded]",
    "NIST SP 800-108 [Superseded]; NIST SP 800-56C [Superseded]",
    "NIST SP 800-56C [Superseded]",
    "NIST CSRC Glossary"
  ],
  "url": "https://mlchart.com/terminology/cybersecurity/prf/"
}