EVP_blake2b5123ssl
Blake2 for evp
Usage
#include <openssl/evp.h>const EVP_MD *EVP_blake2b512(void);const EVP_MD *EVP_blake2s256(void);
Overview
BLAKE2 is an improved version of BLAKE, which was submitted to the NIST SHA-3 algorithm competition. The BLAKE2s and BLAKE2b algorithms are described in RFC 7693.
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The BLAKE2s algorithm that produces a 256-bit output from a given input. |
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The BLAKE2b algorithm that produces a 512-bit output from a given input. |
Notes
Developers should be aware of the negative performance implications of calling these functions multiple times and should consider using EVP_MD_fetch(3) with EVP_MD-BLAKE2(7) instead. See "Performance" in crypto(7) for further information.
Both algorithms support a variable-length digest, but this is only available through EVP_MD-BLAKE2(7).
Return values
These functions return a EVP_MD structure that contains the implementation of the message digest. See EVP_MD_meth_new(3) for details of the EVP_MD structure.
Releases
6 releases since Debian 9 (Stretch); the text changed 5 times.