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Secure Hash Standard (SHS)



Elaine B. Barker


[Superseded by FIPS 180-2(August 2002):] This standard specifies a Secure Hash Algorithm (SHA-1) which can be used to generate a condensed representation of a message called a message digest. The SHA-1 is required for use with the Digital Signature Algorithm (DSA) as specified in the Digital Signature Standard (DSS) and whenever a secure hash algorithm is required for federal applications. The SHA-1 is used by both the transmitter and intended receiver of a message in computing and verifying a digital signature. [Supersedes FIPS 180 (May 11, 1993):]
Federal Inf. Process. Stds. (NIST FIPS) - 180-1
Report Number


computer security, digital signatures, Federal Information Processing Standard, hash algorithm


Barker, E. (1995), Secure Hash Standard (SHS), Federal Inf. Process. Stds. (NIST FIPS), National Institute of Standards and Technology, Gaithersburg, MD (Accessed May 27, 2024)


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Created April 17, 1995, Updated February 19, 2017