Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Digital Signature Standard (DSS)



Elaine B. Barker


[Superseded by FIPS 186-3 (June 2009):] This standard specifies a suite of algorithms which can be used to generate a digital signature.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. [Supersedes FIPS 186-1 (December 15, 1998):]
Federal Inf. Process. Stds. (NIST FIPS) - 186-2
Report Number


ADP security, computer security, digital signatures, public-key cryptography, Federal Information Processing Standards
Created January 27, 2000, Updated February 19, 2017