law tdes_key_length

bend-osdev-crypto@0.1.0.0 · LAWS.bend:681

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-legacy-ciphers@0.1.0.0/tdes.bend as T
import bend-osdev-crypto@0.1.0.0/crypto.bend as Cr
import bend-osdev-crypto@0.1.0.0/inst_lc.bend as LC

681# Triple DES (legacy-ciphers): a key of 8 bytes is refused
682law tdes_key_length:
683  {Result.map(&2, &2, Cr.CrError, T.LcTdesKey, Unit, k => Unit{}, LC.CrLc.key(~T.LcTdesKey, ~T.LcTdes.key, B.Octets.zeros(8n))) == Fail{Cr.CrBadKeyLength{8n}} : Result<&2, &2, Cr.CrError, Unit>}