cryptocol vs hmac-sha512 vs ahsah

A cryptographic library that includes big number arithmetic operations, hash algorithms, symmetric-key encryption/decryption algorithms, asymmetric-key (public-key) encryption/decryption algorithms, pseudo random number generators, etc. Hash algorithms includes MD4, MD5, SHA224, SHA256, SHA384, SHA512, SHA3, etc. Symmetric key encryption algorithms include DES, AES, etc. Public key encryption algorithms include RSA, ECC, etc.

A small, self-contained SHA512, HMAC-SHA512, HKDF-SHA512, SHA384, HMAC-SHA384, and HKDF-SHA384 implementation

Incremental hashing contexts for MD5 and SHA-2 with reader helpers and optional SIMD decode paths