Block Cipher Algorithm

{
  "id": "MLC-T-CYB-000476",
  "term": "Block Cipher Algorithm",
  "field": "Cybersecurity",
  "definition": "1. A family of functions and their inverse functions that is parameterized by cryptographic keys; the functions map bit strings of a fixed length to bit strings of the same length.\n\n2. A family of functions and their inverses that is parameterized by cryptographic keys; the functions map bit strings of a fixed length to bit strings of the same length.\n\n3. A family of functions and their inverses that is parameterized by a cryptographic key; the function maps bit strings of a fixed length to bit strings of the same length.\n\n4. A symmetric-key cryptographic algorithm that transforms one block of information at a time using a cryptographic key. For a block cipher algorithm, the length of the input block is the same as the length of the output block.",
  "references": [
    "NIST SP 800-175B Rev. 1",
    "NIST SP 800-38C",
    "NIST SP 800-67 Rev. 2; NIST SP 800-67 Rev. 1 [Superseded]",
    "NIST SP 800-57 Part 1 Rev. 5",
    "NIST CSRC Glossary"
  ],
  "url": "https://mlchart.com/terminology/cybersecurity/block-cipher-algorithm/"
}