Sha-256 input data type

• constantine

  14 251 8.6 Nim

  Constantine: modular, high-performance, zero-dependency cryptography stack for proof systems and blockchain protocols.

For reference, here is mine: - https://github.com/mratsim/constantine/blob/8a7c35af598d3a1d08c7b31c85234853d849eea7/constantine/hashes/h_sha256.nim#L219

• blst

  3 434 8.7 Assembly

  Multilingual BLS12-381 signature library

  

Here is one I use in production (the same as OpenSSL but just SSE3, audited by NCC): - https://github.com/supranational/blst/blob/master/src/sha256.h - https://github.com/supranational/blst/blob/5435c307e5b3540a6600b816a6d01bdb13a81869/src/no_asm.h#L1089 - https://github.com/supranational/blst/blob/master/src/asm/sha256-x86_64.pl

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• secp256k1

  9 1,960 9.1 C

  Optimized C library for EC operations on curve secp256k1

  

And the one from libsecp256k1 (which underlies Bitcoin) and is optimized for HMAC: - https://github.com/bitcoin-core/secp256k1/blob/master/src/hash_impl.h

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