def cbc64

bend-osdev-legacy-ciphers@0.1.0.0 · check.bend:250

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as L
import bend-osdev-legacy-ciphers@0.1.0.0/modes64.bend as X

250def cbc64(~K: Data, ~enc: K -> L.LcBlock64 -> L.LcBlock64, ~dec: K -> L.LcBlock64 -> L.LcBlock64, +k: K, n: Nat) -> String:
251  +m = big(n)
252  +c = X.Lc64.cbc_encrypt(~K, ~enc, k, B.Octets.zeros(8n), m)
253  last8(c) ++ " " ++ same64(Result.bind(&2, &2, L.LcError, B.Octets, B.Octets, c, x => X.Lc64.cbc_decrypt(~K, ~dec, k, B.Octets.zeros(8n), x)), m)