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Algorithm Output size (bits) Internal state size [note 1] Block size Length size Word size Rounds; BLAKE2b: 512 512 1024 128 [note 2]: 64 12 BLAKE2s: 256 256 512 64 [note 3]: 32 10
Intel Cannon Lake [4] (2018/2019), Ice Lake [5] (2019) and later processors for laptops ("mainstream mobile"). Intel Rocket Lake (2021) and later processors for desktop computers. The following Intel processors will support the newer SHA-512 instruction set: Intel Arrow Lake and Lunar Lake processors.
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. There are also truncated versions of each standard, known as SHA-224, SHA-384, SHA-512/224 and SHA-512/256. These were also designed by the NSA.
8.4 cpb on Core 2 for BLAKE-256; 7.8 cpb for BLAKE-512 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.
The data produced in the previous step is hashed with a cryptographic hash function such as SHA-1 or SHA-2. If desired, the hash function output can be truncated to provide a shorter, more convenient fingerprint. This process produces a short fingerprint which can be used to authenticate a much larger public key.
In cryptography, security level is a measure of the strength that a cryptographic primitive — such as a cipher or hash function — achieves. Security level is usually expressed as a number of "bits of security" (also security strength), [1] where n-bit security means that the attacker would have to perform 2 n operations to break it, [2] but other methods have been proposed that more ...
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.
[4] To ensure that k {\displaystyle k} is unique for each message, one may bypass random number generation completely and generate deterministic signatures by deriving k {\displaystyle k} from both the message and the private key.