law md4_streaming

bend-osdev-hashes@0.1.0.0 · LAWS.bend:33

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/md4.bend as M4

33# MD4 (RFC 1320): update over a ++ b is update over a, then b, from every state
34law md4_streaming:
35  for s: Hs.HsMdState<Hs.HsW4>
36  for +a: B.Octets
37  for +b: B.Octets
38  {M4.HsMd4.update(s, B.Octets.append(a, b)) == M4.HsMd4.update(M4.HsMd4.update(s, a), b) : Hs.HsMdState<Hs.HsW4>}