def ecb_rt.fcrypt

bend-osdev-crypto@0.1.0.0 · PROOF.bend:1548

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/fcrypt.bend as Fc
import bend-osdev-legacy-ciphers@0.1.0.0/LAWS.bend as LL
import bend-osdev-crypto@0.1.0.0/modes.bend as Md

1548def ecb_rt.fcrypt(+k: Fc.LcFcryptKey, bs: List<&2, L.LcBlock64>) -> {bs == Md.cr.ecb(~Fc.LcFcryptKey, ~L.LcBlock64, ~Fc.LcFcrypt.decrypt, k, Md.cr.ecb(~Fc.LcFcryptKey, ~L.LcBlock64, ~Fc.LcFcrypt.encrypt, k, bs)) : List<&2, L.LcBlock64>}:
1549  match bs:
1550    case Nil{}:
1551      {==}
1552    case Con{b, t}:
1553      %Equal.sym(L.LcBlock64, Fc.LcFcrypt.decrypt(k, Fc.LcFcrypt.encrypt(k, b)), b, LL.fcrypt_round_trip(k, b)) : {Con{b, t} == Con{_, Md.cr.ecb(~Fc.LcFcryptKey, ~L.LcBlock64, ~Fc.LcFcrypt.decrypt, k, Md.cr.ecb(~Fc.LcFcryptKey, ~L.LcBlock64, ~Fc.LcFcrypt.encrypt, k, t))} : List<&2, L.LcBlock64>}
1554      %ecb_rt.fcrypt(k, t) : {Con{b, t} == Con{b, _} : List<&2, L.LcBlock64>}
1555      {==}