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  2. Digital Signature Standard - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Standard

    It defines the Digital Signature Algorithm, contains a definition of RSA signatures based on the definitions contained within PKCS #1 version 2.1 and in American National Standard X9.31 with some additional requirements, and contains a definition of the Elliptic Curve Digital Signature Algorithm based on the definition provided by American National Standard X9.62 with some additional ...

  3. Digital Signature Algorithm - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Algorithm

    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 1864 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 ...

  4. NSA Suite B Cryptography - Wikipedia

    en.wikipedia.org/wiki/NSA_Suite_B_Cryptography

    As of October 2012, CNSSP-15 [4] stated that the 256-bit elliptic curve (specified in FIPS 186-2), SHA-256, and AES with 128-bit keys are sufficient for protecting classified information up to the Secret level, while the 384-bit elliptic curve (specified in FIPS 186-2), SHA-384, and AES with 256-bit keys are necessary for the protection of Top ...

  5. Federal Information Processing Standards - Wikipedia

    en.wikipedia.org/wiki/Federal_Information...

    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 ]

  6. NSA cryptography - Wikipedia

    en.wikipedia.org/wiki/NSA_Cryptography

    A Type 4 Algorithm refers to algorithms that are registered by the NIST but are not FIPS published. Unevaluated commercial cryptographic equipment, assemblies, or components that are neither NSA nor NIST certified for any Government usage.

  7. Commercial National Security Algorithm Suite - Wikipedia

    en.wikipedia.org/wiki/Commercial_National...

    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

  8. NSA product types - Wikipedia

    en.wikipedia.org/wiki/NSA_product_types

    A Type 4 product was an encryption algorithm that was registered with NIST but is not a Federal Information Processing Standard (FIPS), defined as: Unevaluated commercial cryptographic equipment, assemblies, or components that neither NSA nor NIST certify for any Government usage.

  9. Curve25519 - Wikipedia

    en.wikipedia.org/wiki/Curve25519

    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 ...