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The Digital Signature Standard (DSS) is a Federal Information Processing Standard specifying a suite of algorithms that can be used to generate digital signatures established by the U.S. National Institute of Standards and Technology (NIST) in 1994.
Elliptic Curve Digital Signature Algorithm (ECDSA), per FIPS 186-4; Secure Hash Algorithm (SHA), per FIPS 180-4, using SHA-384 to protect up to TOP SECRET. Diffie-Hellman (DH) Key Exchange, per RFC 3526, minimum 3072-bit modulus to protect up to TOP SECRET; RSA for key establishment (NIST SP 800-56B rev 1) and digital signatures (FIPS 186-4 ...
In 2002, the National Institute of Standards and Technology (NIST) withdrew several geographic FIPS code standards, including those for countries (FIPS 10-4), U.S. states (FIPS 5-2), and counties . [7] [8] These are to be replaced by ISO 3166 and INCITS standards 38 and 31, respectively. [9]
Five revisions to the initial specification have been released: FIPS 186–1 in 1998, [4] FIPS 186–2 in 2000, [5] FIPS 186–3 in 2009, [6] FIPS 186–4 in 2013, [3] and FIPS 186–5 in 2023. [7] Standard FIPS 186-5 forbids signing with DSA, while allowing verification of signatures generated prior to the implementation date of the standard ...
NIST SP 800-56A: Use Curve P-384 for all classification levels. Elliptic Curve Digital Signature Algorithm (ECDSA) Asymmetric algorithm for digital signatures FIPS PUB 186-4: Use Curve P-384 for all classification levels. Secure Hash Algorithm (SHA) Algorithm for computing a condensed representation of information FIPS PUB 180-4
The curves over with pseudo-Mersenne p are recommended by NIST. Yet another advantage of the NIST curves is that they use a = −3, which improves addition in Jacobian coordinates. According to Bernstein and Lange, many of the efficiency-related decisions in NIST FIPS 186-2 are suboptimal.
In 2017, NIST announced that Curve25519 and Curve448 would be added to Special Publication 800-186, which specifies approved elliptic curves for use by the US Federal Government. [22] Both are described in RFC 7748. [23] A 2019 draft of "FIPS 186-5" notes the intention to allow usage of Ed25519 [24] for digital signatures. The 2023 update of ...
On September 2, 2008, FIPS 10-4 was one of ten standards withdrawn by NIST as a Federal Information Processing Standard. [1] [2] It was replaced in the U.S. Government by the Geopolitical Entities, Names, and Codes (GENC), which is based on ISO 3166. [3]
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