PROOF.cbc_dec_ref: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/PROOF.bend as PROOF
Lines 8615-8620 of bend-osdev-legacy-ciphers@0.1.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/PROOF.bend&start_line=8615&end_line=8620

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/modes64.bend as X

def cbc_dec_ref(~K: Data, ~dec: K -> L.LcBlock64 -> L.LcBlock64, +k: K, bs: List<&2, L.LcBlock64>, +iv: L.LcBlock64, +acc: List<&2, L.LcBlock64>) -> {X.m64.cbc.dec.go(~K, ~dec, k, bs, iv, acc) == X.m64.rev_onto(acc, X.m64.cbc.dec(~K, ~dec, k, bs, iv)) : List<&2, L.LcBlock64>}:
  match bs:
    case Nil{}:
      {==}
    case Con{+c, t}:
      cbc_dec_ref(~K, ~dec, k, t, c, Con{L.LcBlock64.xor(iv, dec(k, c)), acc})

Uses (6):
  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
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/modes64.bend&name=m64.cbc.dec
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/modes64.bend&name=m64.cbc.dec.go
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/modes64.bend&name=m64.rev_onto