law twofish_ecb_round_trip

bend-osdev-crypto@0.1.0.0 · LAWS.bend:853

import Base
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
import bend-osdev-legacy-ciphers@0.1.0.0/twofish.bend as Tf
import bend-osdev-crypto@0.1.0.0/modes.bend as Md

853# Twofish (legacy-ciphers) in ECB (modes.bend): decryption undoes encryption, for every key and list of blocks
854law twofish_ecb_round_trip:
855  for +k: Tf.LcTwofishKey
856  for +bs: List<&2, M.CmBlock>
857  {Md.CrEcb.decrypt_blocks(~Tf.LcTwofishKey, ~M.CmBlock, ~Tf.LcTwofish.decrypt, k, Md.CrEcb.encrypt_blocks(~Tf.LcTwofishKey, ~M.CmBlock, ~Tf.LcTwofish.encrypt, k, bs)) == bs : List<&2, M.CmBlock>}