Des.des.unrounds: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/des.bend as Des
Lines 266-272 of bend-osdev-legacy-ciphers@0.1.0.0/des.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/des.bend&start_line=266&end_line=272

import Base

# the rounds of ks undone, last to first
def des.unrounds(ks: List<&2, LcDesRk>, h: LcDesHalves) -> LcDesHalves:
  match ks:
    case Nil{}:
      h
    case Con{k, t}:
      des.unstep(k, des.unrounds(t, h))

Uses (4):
  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/des.bend&name=LcDesHalves
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/des.bend&name=LcDesRk
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/des.bend&name=des.unstep