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Cryptographic algorithm

Definitions:

  A well-defined computational procedure that takes variable inputs, often including a cryptographic key, and produces an output.
Sources:
NIST SP 800-152

  A well-defined computational procedure that takes variable inputs, including a cryptographic key, and produces an output.
Sources:
NIST SP 1800-21B under Cryptographic Algorithm from CNSSI 4009-2022
NIST SP 800-57 Part 1 Rev. 5

  A well-defined computational procedure that takes variable inputs, including a cryptographic key (if applicable), and produces an output.
Sources:
NIST SP 800-175A
NIST SP 800-175B Rev. 1

  A well-defined computational procedure that takes variable inputs (often including a cryptographic key) and produces an output.
Sources:
NIST SP 800-133 Rev. 2