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Skein was created by Bruce Schneier, Niels Ferguson, Stefan Lucks, Doug Whiting, Mihir Bellare, Tadayoshi Kohno, Jon Callas and Jesse Walker.. Skein is based on the Threefish tweakable block cipher compressed using Unique Block Iteration (UBI) chaining mode, a variant of the Matyas–Meyer–Oseas hash mode, [3] while leveraging an optional low-overhead argument-system for flexibility.
Shabal function mode of operation. The chaining mode of Shabal works as follows: (A, B) ← PM,C (A, B, C) ← (A, C – M, B), (A ⊕ W, B + M), where M is the message block, and W is the counter. After processing all message blocks, three finalization rounds are applied in which the message block and the counter values are fixed.
HAS-V is a cryptographic hash function with a variable output length. HAS-V is a hash function based on a block cipher . The hash function can produce hash values with lengths from 16 to 40 bytes .
see Jenkins hash function: CityHash [4] 32, 64, 128, or 256 bits FarmHash [5] 32, 64 or 128 bits MetroHash [6] 64 or 128 bits numeric hash (nhash) [7] variable division/modulo xxHash [8] 32, 64 or 128 bits product/rotation t1ha (Fast Positive Hash) [9] 64 or 128 bits product/rotation/XOR/add GxHash [10] 32, 64 or 128 bits AES block cipher pHash ...
Synthetic initialization vector (SIV) is a nonce-misuse resistant block cipher mode. SIV synthesizes an internal IV using the pseudorandom function S2V. S2V is a keyed hash based on CMAC, and the input to the function is: Additional authenticated data (zero, one or many AAD fields are supported) Plaintext; Authentication key (K 1).
In the case of high-quality block ciphers, such a small change in either the key or the plaintext should cause a drastic change in the ciphertext. The actual term was first used by Horst Feistel, [1] although the concept dates back to at least Shannon's diffusion. The SHA-1 hash function exhibits good avalanche effect. When a single bit is ...
BLAKE is a cryptographic hash function based on Daniel J. Bernstein's ChaCha stream cipher, but a permuted copy of the input 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 4×4 array of words.
In cryptography, MDC-2 (Modification Detection Code 2, sometimes called Meyer–Schilling, [citation needed] standardized in ISO 10118-2) is a cryptographic hash function. MDC-2 is a hash function based on a block cipher with a proof of security in the ideal-cipher model. [1] The length of the output hash depends on the underlying block cipher ...