Modes64.m64.cbc.dec: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/modes64.bend as Modes64
Lines 38-44 of bend-osdev-legacy-ciphers@0.1.0.0/modes64.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/modes64.bend&start_line=38&end_line=44

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

# P_1 = D(C_1) xor IV, P_j = D(C_j) xor C_(j-1)
def m64.cbc.dec(~K: Data, ~dec: K -> L.LcBlock64 -> L.LcBlock64, +k: K, bs: List<&2, L.LcBlock64>, iv: L.LcBlock64) -> List<&2, L.LcBlock64>:
  match bs:
    case Nil{}:
      Nil{}
    case Con{+c, t}:
      Con{L.LcBlock64.xor(iv, dec(k, c)), m64.cbc.dec(~K, ~dec, k, t, c)}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=LcBlock64
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=LcBlock64.xor