law tea_block_round_trip_dual

bend-osdev-crypto@0.1.0.0 · LAWS.bend:1047

import Base
import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as L
import bend-osdev-legacy-ciphers@0.1.0.0/tea.bend as Te

1047# TEA, little-endian words (legacy-ciphers): encryption undoes decryption (a permutation of the blocks)
1048law tea_block_round_trip_dual:
1049  for k: Te.LcTeaKey
1050  for +b: L.LcBlock64
1051  {Te.LcTea.encrypt(k, Te.LcTea.decrypt(k, b)) == b : L.LcBlock64}