• SHA-2
    that are 224, 256, 384 or 512 bits: SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, SHA-512/256. SHA-256 and SHA-512 are novel hash functions whose digests...
    51 KB (4,952 words) - 05:27, 24 September 2024
  • SHA-1
    against SHA-1 are practical. As such, it is recommended to remove SHA-1 from products as soon as possible and instead use SHA-2 or SHA-3. Replacing SHA-1 is...
    51 KB (5,771 words) - 15:25, 17 September 2024
  • SHA-3
    of the same series of standards, SHA-3 is internally different from the MD5-like structure of SHA-1 and SHA-2. SHA-3 is a subset of the broader cryptographic...
    51 KB (5,689 words) - 03:20, 25 September 2024
  • Thumbnail for Cryptographic hash function
    Cryptographic hash function (section SHA-2)
    Documents may refer to SHA-1 as just "SHA", even though this may conflict with the other Secure Hash Algorithms such as SHA-0, SHA-2, and SHA-3. RIPEMD (RACE...
    48 KB (6,228 words) - 08:46, 27 September 2024
  • Secure Hash Algorithms (redirect from SHA family)
    SHA), FIPS PUB 180-1 (SHA-1), FIPS PUB 180-2 (SHA-1, SHA-256, SHA-384, and SHA-512). NIST has updated Draft FIPS Publication 202, SHA-3 Standard separate...
    3 KB (464 words) - 13:15, 22 July 2024
  • Thumbnail for HMAC
    HMAC (redirect from HMAC-SHA-256)
    key prior to communication. Any cryptographic hash function, such as SHA-2 or SHA-3, may be used in the calculation of an HMAC; the resulting MAC algorithm...
    18 KB (2,335 words) - 15:54, 19 September 2024
  • NIST hash function competition (redirect from SHA-3 competition)
    function called SHA-3 to complement the older SHA-1 and SHA-2. The competition was formally announced in the Federal Register on November 2, 2007. "NIST...
    27 KB (2,244 words) - 20:34, 28 February 2024
  • Length extension attack
    MD5, SHA-1 and most of SHA-2 that are based on the Merkle–Damgård construction are susceptible to this kind of attack. Truncated versions of SHA-2, including...
    7 KB (1,046 words) - 12:26, 6 June 2024
  • Simple Network Management Protocol (section Version 2)
    (Proposed|Historic) — HMAC-SHA-2 Authentication Protocols in the User-based Security Model (USM) for SNMPv3 RFC 7860 (Proposed) — HMAC-SHA-2 Authentication Protocols...
    40 KB (5,042 words) - 03:34, 27 September 2024
  • BLAKE (hash function)
    block, XORed with round constants, is added before each ChaCha round. Like SHA-2, there are two variants differing in the word size. ChaCha operates on a...
    30 KB (2,848 words) - 05:59, 18 August 2024