Overview[1]#

Digital Signature Algorithm (DSA), is an algorithm defined by the Federal Information Processing Standard for Digital Signatures.

Digital Signature Algorithm was proposed by the National Institute of Standards and Technology (NIST) in August 1991 for use in their Digital Signature Standard (DSS) and adopted as FIPS 186 in 1993.

Four revisions to the initial specification have been released:

Digital Signature Algorithm is covered by U.S. Patent 5,231,668, filed July 26, 1991 and attributed to David W. Kravitz,[6] a former NSA employee. This patent was given to "The United States of America as represented by the Secretary of Commerce, Washington, D.C.", and NIST has made this patent available worldwide royalty-free.[7] Claus P. Schnorr claims that his U.S. Patent 4,995,082 (expired) covered DSA; this claim is disputed.[8]

Digital Signature Algorithm is a variant of the ElGamal Signature Scheme.

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« This page (revision-4) was last changed on 10-Jan-2017 11:06 by jim