law md5_streaming

bend-osdev-hashes@0.1.0.0 · LAWS.bend:93

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/md5.bend as M5

93# MD5 (RFC 1321): update over a ++ b is update over a, then b, from every state
94law md5_streaming:
95  for s: Hs.HsMdState<Hs.HsW4>
96  for +a: B.Octets
97  for +b: B.Octets
98  {M5.HsMd5.update(s, B.Octets.append(a, b)) == M5.HsMd5.update(M5.HsMd5.update(s, a), b) : Hs.HsMdState<Hs.HsW4>}