law chacha20_block.invalid

bend-collections-laws-crypto@1.0.0.0 · proofs/crypto/chacha/laws.bend:61

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/chacha/chacha20.bend as I

61law chacha20_block.invalid:
62  for +key: List<&2, U32>
63  for +counter: U32
64  for +nonce: List<&2, U32>
65  for +h: {Bool.and(Nat.is_eq(List.length(&2, U32, key), 32n), Nat.is_eq(List.length(&2, U32, nonce), 12n)) == False{} : Bool}
66  {I.chacha20_block(key, counter, nonce) == None{} : Maybe<&2, List<&2, U32>>}