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Computer Security Resource Center

Computer Security
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password

Abbreviation(s) and Synonym(s): Definition(s):

  A secret that a Claimant memorizes and uses to authenticate his or her identity. Passwords are typically character strings.
Source(s):
NIST SP 800-63-2 under Password [Superseded]

  A string of characters (letters, numbers, and other symbols) used to authenticate an identity or to verify access authorization.
Source(s):
NIST SP 800-12 Rev. 1 under Password (FIPS 140-2)
NIST SP 800-82 Rev. 2 under Password

  A string of characters (letters, numbers and other symbols) that are used to authenticate an identity or to verify access authorization. A passphrase is a special case of a password that is a sequence of words or other text. In this document, the use of the term “password' includes this special case.
Source(s):
NIST SP 800-133 under Password

  A string of characters (letters, numbers and other symbols) that are used to authenticate an identity, to verify access authorization or to derive cryptographic keys.
Source(s):
NIST SP 800-57 Part 1 Rev. 3 under Password [Superseded]
NIST SP 800-57 Part 1 Rev. 4 under Password
NISTIR 7621 Rev. 1 under Password (NIST SP 800-57 Part 1 Rev. 3)

  A protected/private string of letters, numbers, and/or special characters used to authenticate an identity or to authorize access to data.
Source(s):
CNSSI 4009-2015 (NSA/CSS Manual Number 3-16 (COMSEC))

  A string of characters (letters, numbers and other symbols) that are used to authenticate an identity or to verify access authorization.
Source(s):
NIST SP 800-57 Part 2 under Password

  See memorized secret.
Source(s):
NIST SP 800-63-3 under Password

  Confidential authentication information, usually composed of a string of characters.
Source(s):
NISTIR 5153 under Password (ISO DIS 10181-2)