law sha1_length

bend-osdev-hashes@0.1.0.0 · LAWS.bend:173

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/sha1.bend as S1

173# SHA-1 (FIPS 180-4): the digest of every state has 20 bytes
174law sha1_length:
175  for +s: Hs.HsMdState<Hs.HsW5>
176  {B.Octets.len(S1.HsSha1.final(s)) == 20n : Nat}