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SHA-2: A family of two similar hash functions, with different block sizes, known as SHA-256 and SHA-512. They differ in the word size; SHA-256 uses 32-bit words where SHA-512 uses 64-bit words. They differ in the word size; SHA-256 uses 32-bit words where SHA-512 uses 64-bit words.
[40]: 7 SHA-3 has been criticized for being slow on instruction set architectures (CPUs) which do not have instructions meant specially for computing Keccak functions faster – SHA2-512 is more than twice as fast as SHA3-512, and SHA-1 is more than three times as fast on an Intel Skylake processor clocked at 3.2 GHz. [41]
SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the United States National Security Agency (NSA) and first published in 2001. [3] [4] They are built using the Merkle–Damgård construction, from a one-way compression function itself built using the Davies–Meyer structure from a specialized block cipher.
SHA-384 and the lesser-known SHA-512/224 and SHA-512/256 are all variants of SHA-512. SHA-512 is more secure than SHA-256 and is commonly faster than SHA-256 on 64-bit machines such as AMD64. The output size in bits is given by the extension to the "SHA" name, so SHA-224 has an output size of 224 bits (28 bytes); SHA-256, 32 bytes; SHA-384, 48 ...
512 64 32 3 MD5: 128 128 512 64 32 64 PANAMA: 256 8736 256 – 32 – RadioGatún: Unlimited [note 6] 58 words 19 words [note 7] – 1–64 [note 8] 18 [note 9] RIPEMD: 128 128 512 64 32 48 RIPEMD-128, -256: 128/256 128/256 512 64 32 64 RIPEMD-160: 160 160 512 64 32 80 RIPEMD-320: 320 320 512 64 32 80 SHA-0: 160 160 512 64 32 80 SHA-1: 160 160 ...
Like SHA-2, BLAKE comes in two variants: one that uses 32-bit words, used for computing hashes up to 256 bits long, and one that uses 64-bit words, used for computing hashes up to 512 bits long. The core block transformation combines 16 words of input with 16 working variables, but only 8 words (256 or 512 bits) are preserved between blocks.
up to 512 bits HAIFA structure [17] BLAKE2X: arbitrary HAIFA structure, [17] extendable-output functions (XOFs) design [18] BLAKE3: arbitrary Merkle tree: ECOH: 224 to 512 bits hash FSB: 160 to 512 bits hash GOST: 256 bits hash Grøstl: up to 512 bits hash HAS-160: 160 bits hash HAVAL: 128 to 256 bits hash JH: 224 to 512 bits hash LSH [19] 256 ...
SHA-512: 512: 256: 0 [4] 5.06: 135.50: 2001 SHA-512/224 SHA-512/256: 224 256: 112 128: 288 256: ≈ SHA-384: ≈ SHA-384: 2012 SHA-3: SHA3-224 SHA3-256 SHA3-384 SHA3-512: 224 256 384 512: 1600 (5 × 5 × 64) 1152 1088 832 576: 24 [5] And, Xor, Rot, Not: 112 128 192 256: 448 512 768 1024: 8.12 8.59 11.06 15.88: 154.25 155.50 164.00 164.00: 2015 ...