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SHA-1

Abbreviations / Acronyms / Synonyms:

Secure Hash Algorithm
Secure Hash Algorithm 1
Secure Hash Algorithm, version 1
Secure Hash Algorithm, Version 1
Secure Hash Algorithm-1
SHA1

Definitions:

  The Secure Hash Algorithm defined in Federal Information Processing Standard 180-1.
Sources:
NIST SP 800-22 Rev. 1a

  A hash function specified in FIPS 180-2, the Secure Hash Standard.
Sources:
NIST SP 1800-16B under Secure Hash Algorithm 1 from NIST SP 800-89
NIST SP 1800-16C under Secure Hash Algorithm 1 from NIST SP 800-89
NIST SP 800-89

  A hash algorithm with the property that it is computationally infeasible 1) to find a message that corresponds to a given message digest, or 2) to find two different messages that produce the same message digest.
Sources:
CNSSI 4009-2015 under Secure Hash Algorithm from FIPS 180-4