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Computer Security Resource Center

Computer Security Resource Center

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Mode of Operation (Mode)

Abbreviation(s) and Synonym(s):

block cipher mode of operation

Definition(s):

  An algorithm for the cryptographic transformation of data that features a symmetric key block cipher algorithm.
Source(s):
NIST SP 800-38A
NIST SP 800-38C

  An algorithm for the cryptographic transformation of data that features a symmetric key block cipher.
Source(s):
NIST SP 800-38B

  An algorithm for the cryptographic transformation of data that is based on a block cipher.
Source(s):
NIST SP 800-38D
NIST SP 800-38F under block cipher mode of operation

  See “block cipher mode of operation.”
Source(s):
NIST SP 800-38F under mode

  An algorithm that uses a block cipher algorithm as a cryptographic primitive to provide a cryptographic service, such as confidentiality or authentication.
Source(s):
NIST SP 800-175B Rev. 1 under Mode of operation