KDK

{
  "id": "MLC-T-CYB-002304",
  "term": "KDK",
  "field": "Cybersecurity",
  "definition": "1. A key used as an input to a key-derivation function to derive additional keying material.\n\n2. As used in this Recommendation, either a one-step key-derivation method or a key-derivation function based on a pseudorandom function as specified in [SP 800-108].\n\n3. A key used as an input to a key-derivation method to derive additional keying material.\n\n4. A function by which keying material is derived from a shared secret (or a key) and other information.\n\n5. A function that, with the input of a cryptographic key or shared secret, and possibly other data, generates a binary string, called keying material.\n\n6. As used in this Recommendation, a function used to derive secret keying material from a shared secret (or a key) and other information.\n\n7. A function that - with the input of a cryptographic key or shared secret and possibly other data - generates a binary string, called keying material.\n\n8. As used in this Recommendation, either a one-step key-derivation method or a key-derivation function based on a pseudorandom function as specified in SP 800-108.\n\n9. A function used to derive keying material from a shared secret (or a key) and other information.",
  "expansions": [
    "Key-derivation function",
    "key-derivation key"
  ],
  "references": [
    "NIST SP 800-108r1 [August 2022 (Includes updates as of 02-02-2024)]",
    "NIST SP 800-56C Rev. 2",
    "NIST SP 800-227",
    "NIST SP 800-56A Rev. 2 [Superseded]",
    "NIST SP 800-57 Part 1 Rev. 4 [Superseded]; NIST SP 800-57 Part 1 Rev. 3 [Superseded]",
    "NIST SP 800-56B Rev. 2",
    "NIST SP 800-57 Part 1 Rev. 5",
    "NIST SP 800-133 Rev. 2",
    "NIST SP 800-56B Rev. 1 [Superseded]",
    "NIST CSRC Glossary"
  ],
  "url": "https://mlchart.com/terminology/cybersecurity/kdk/"
}