def sign

bend-collections-laws-crypto@1.0.0.0 · src/crypto/mac.bend:55

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/sha/sha256.bend as SHA

55def sign(+key: List<&2, U32>, msg: List<&2, U32>) -> List<&2, U32>:
56  +k = block_key(key)
57  SHA.sha256_bytes(List.append(&2, U32, mask(k, block_len(), 92),
58    SHA.sha256_bytes(List.append(&2, U32, mask(k, block_len(), 54), msg))))