law serpent_ecb_round_trip

bend-osdev-crypto@0.1.0.0 · LAWS.bend:809

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/serpent.bend as Sp
import bend-osdev-crypto@0.1.0.0/modes.bend as Md

809# Serpent (legacy-ciphers) in ECB (modes.bend): decryption undoes encryption, for every key and list of blocks
810law serpent_ecb_round_trip:
811  for +k: Sp.LcSerpentKey
812  for +bs: List<&2, M.CmBlock>
813  {Md.CrEcb.decrypt_blocks(~Sp.LcSerpentKey, ~M.CmBlock, ~Sp.LcSerpent.decrypt, k, Md.CrEcb.encrypt_blocks(~Sp.LcSerpentKey, ~M.CmBlock, ~Sp.LcSerpent.encrypt, k, bs)) == bs : List<&2, M.CmBlock>}