law sm3_hash_streaming

bend-osdev-crypto@0.1.0.0 · LAWS.bend:1386

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-hashes@0.1.0.0/hashes.bend as Hs
import bend-osdev-hashes@0.1.0.0/sm3.bend as HSM

1386# SM3 (hashes): update over a ++ b is update over a, then b, for every state
1387law sm3_hash_streaming:
1388  for s: Hs.HsMdState<Hs.HsW8>
1389  for +a: B.Octets
1390  for +b: B.Octets
1391  {HSM.HsSm3.update(s, B.Octets.append(a, b)) == HSM.HsSm3.update(HSM.HsSm3.update(s, a), b) : Hs.HsMdState<Hs.HsW8>}