law open_seal

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/aead/proof.bend:191

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/aead.bend as A

191law open_seal:
192  for +alg: A.Alg
193  for +key: List<&2, U32>
194  for +nonce: List<&2, U32>
195  for +aad: List<&2, U32>
196  for +pt: List<&2, U32>
197  for +hk: {List.length(&2, U32, key) == A.key_size(alg) : Nat}
198  for +hn: {List.length(&2, U32, nonce) == A.nonce_size(alg) : Nat}
199  {open_sealed(alg, key, nonce, aad, A.seal(alg, key, nonce, aad, pt)) == Some{pt} : Maybe<&2, List<&2, U32>>}