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Digital Signature Standard (DSS) [includes Change Notice 1 from 12/30/1996]



Elaine B. Barker


[Superseded by FIPS 186-1 (December 15, 1998):] This standard specifies a Digital Signature Algorithm (DSA) which can be used to generate a digital signature. Digital signatures are used to detect unauthorized modifications to data and to authenticate the identity of the signatory. In addition, the recipient of signed data can use a digital signature in proving to a third party that the signature was in fact generated by the signatory. This is known as nonrepudiation since the signatory cannot, at a later time, repudiate the signature. Change Notice 1: Changes made to i) Appendix 3.2 Algorithm for Precomputing one or more k and r Values, and ii) Appendix 5, Example of the DSA (changed for use with FIPS 180-1, Secure Hash Standard).
Federal Inf. Process. Stds. (NIST FIPS) - 186
Report Number


ADP security, computer security, digital signatures, public-key cryptography, Federal Information Processing Standard


Barker, E. (1994), Digital Signature Standard (DSS) [includes Change Notice 1 from 12/30/1996], Federal Inf. Process. Stds. (NIST FIPS), National Institute of Standards and Technology, Gaithersburg, MD (Accessed April 15, 2024)
Created May 19, 1994, Updated February 19, 2017