LAWS.cast6_block_round_trip: law of bend-osdev-crypto@0.1.0.0
Import: import bend-osdev-crypto@0.1.0.0/LAWS.bend as LAWS
Lines 925-929 of bend-osdev-crypto@0.1.0.0/LAWS.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-crypto@0.1.0.0/LAWS.bend&start_line=925&end_line=929

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/cast6.bend as C6

# CAST-256 (legacy-ciphers): decryption undoes encryption, for every key and block
law cast6_block_round_trip:
  for k: C6.LcCast6Key
  for +b: M.CmBlock
  {C6.LcCast6.decrypt(k, C6.LcCast6.encrypt(k, b)) == b : M.CmBlock}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend&name=CmBlock
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/LAWS.bend&name=cast6_round_trip
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/cast6.bend&name=LcCast6.decrypt
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/cast6.bend&name=LcCast6.encrypt
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/cast6.bend&name=LcCast6Key