The Digital Signature Standard (DSS) is a
Federal Information Processing Standard
The Federal Information Processing Standards (FIPS) of the United States are a set of publicly announced standards that the National Institute of Standards and Technology (NIST) has developed for use in computer systems of non-military, American ...
specifying a suite of algorithms that can be used to generate
digital signature
A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature, where the prerequisites are satisfied, gives a recipient very high confidence that the message was created b ...
s established by the U.S.
National Institute of Standards and Technology
The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness. NIST's activities are organized into physical sci ...
(NIST) in 1994. Four revisions to the initial specification have been released: FIPS in 1996,
FIPS in 2000,
FIPS in 2009,
and FIPS in 2013.
It defines the
Digital Signature Algorithm
The Digital Signature Algorithm (DSA) is a public-key cryptosystem and Federal Information Processing Standard for digital signatures, based on the mathematical concept of modular exponentiation and the discrete logarithm problem. DSA is a variant ...
, contains a definition of
RSA signatures based on the definitions contained within
PKCS #1 version 2.1 and in
American National Standard
The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...
X9.31 with some additional requirements, and contains a definition of the
Elliptic Curve Digital Signature Algorithm
In cryptography, the Elliptic Curve Digital Signature Algorithm (ECDSA) offers a variant of the Digital Signature Algorithm (DSA) which uses elliptic-curve cryptography.
Key and signature-size
As with elliptic-curve cryptography in general, the b ...
based on the definition provided by
American National Standard
The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...
X9.62 with some additional requirements and some recommended elliptic curves. It also approves the use of all three algorithms.
References
Digital signature schemes
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