law mac_length

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/poly1305/mac.bend:365

import Base
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/poly1305.bend as R

365# The tag has 16 bytes.
366law mac_length:
367  for +key: List<&2, U32>
368  for +msg: List<&2, U32>
369  {List.length(&2, U32, R.mac(key, msg)) == 16n : Nat}