Secret key

{
  "id": "MLC-T-CYB-003749",
  "term": "Secret key",
  "field": "Cybersecurity",
  "definition": "1. A single cryptographic key that is used with a symmetric-key algorithm; also called a secret key. A symmetric-key algorithm is a cryptographic algorithm that uses the same secret key for an operation and its complement (e.g., encryption and decryption).\n\n2. A cryptographic key that is used by a secret-key (i.e., symmetric) cryptographic algorithm and not made public.\n\n3. A cryptographic key that is used with a (symmetric) cryptographic algorithm that is uniquely associated with one or more entities and is not made public. The use of the term “secret” in this context does not imply a classification level, but rather implies the need to protect the key from disclosure.\n\n4. A cryptographic key, used with a secret key cryptographic algorithm, that is uniquely associated with one or more entities and should not be made public.\n\n5. A cryptographic key used by one or more (authorized) entities in a symmetric-key cryptographic algorithm; the key is not made public.\n\n6. See Secret key.\n\n7. A cryptographic key used by a secret-key (symmetric) cryptographic algorithm and that is not made public.\n\n8. A single cryptographic key that is used with a secret (symmetric) key algorithm.\n\n9. A cryptographic key that is used with a secret-key (symmetric) cryptographic algorithm that is uniquely associated with one or more entities and is not made public. The use of the term “secret” in this context does not imply a classification level, but rather implies the need to protect the key from disclosure.\n\n10. A cryptographic key that is used with a secret key (also known as a symmetric key) cryptographic algorithm that is uniquely associated with one or more entities and shall not be made public. The use of the term “secret” in this context does not imply a classification level, but rather implies the need to protect the key from disclosure.\n\n11. A single cryptographic key that is shared by both originator and recipient (see symmetric key algorithm)\n\n12. A cryptographic key that is shared between two or more entities and used with a cryptographic application to process information.\n\n13. A single cryptographic key that is used by one or more entities with a symmetric key algorithm.\n\n14. A single cryptographic key that is used with a symmetric (secret key) cryptographic algorithm and is not made public (i.e., the key is kept secret). A secret key is also called a symmetric key.\n\n15. The use of the term “secret” in this context does not imply a classification level, but rather implies the need to protect the key from disclosure.\n\n16. Compare with a private key, which is used with a public-key (asymmetric-key) algorithm.\n\n17. A single cryptographic key that is used with a symmetric (secret key) algorithm, is uniquely associated with one or more entities, and is not made public (i.e., the key is kept secret); a symmetric key is often called a secret key.\n\n18. A single cryptographic key that is used with a symmetric-key cryptographic algorithm, is uniquely associated with one or more entities and is not made public (i.e., the key is kept secret). A secret key is also called a Symmetric key. The use of the term “secret” in this context does not imply a classification level but rather implies the need to protect the key from disclosure.\n\n19. A single cryptographic key that is used with a symmetric-key cryptographic algorithm, is uniquely associated with one or more entities, and is not made public (i.e., the key is kept secret). A symmetric key is often called a secret key. See Secret key.\n\n20. A cryptographic key that must be protected from unauthorized disclosure to protect data encrypted with the key. The use of the term “secret” in this context does not imply a classification level; rather, the term implies the need to protect the key from disclosure or substitution.",
  "synonyms": [
    "Symmetric key"
  ],
  "references": [
    "NIST SP 800-56C Rev. 2",
    "NIST SP 800-232",
    "CNSSI 4009-2015 from NIST SP 800-57 Part 1 Rev. 3",
    "NIST SP 800-12 Rev. 1",
    "NIST SP 800-133 [Superseded]; NIST SP 800-133 Rev.1 [Superseded]; NIST SP 800-133 Rev. 2",
    "NIST SP 800-133 [Superseded]; NIST SP 800-133 Rev.1 [Superseded]; NIST SP 800-152; NIST SP 800-133 Rev. 2",
    "NIST SP 800-152",
    "NIST SP 800-57 Part 1 Rev. 4 [Superseded]; NIST SP 800-56B Rev. 1 [Superseded]; NIST SP 800-57 Part 1 Rev. 3 [Superseded]",
    "NIST SP 800-57 Part 1 Rev. 4 [Superseded]; NIST SP 800-57 Part 1 Rev. 3 [Superseded]",
    "NIST SP 800-57 Part 2 [Superseded]",
    "NIST SP 800-56B Rev. 2",
    "NIST SP 800-57 Part 2 Rev.1",
    "NIST SP 800-175B Rev. 1",
    "NIST SP 800-57 Part 1 Rev. 5",
    "FIPS 201 [version unknown]",
    "NIST CSRC Glossary"
  ],
  "url": "https://mlchart.com/terminology/cybersecurity/secret-key/"
}