PROOF.cam_f2d: 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 327-332 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=327&end_line=332

import Base
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as L
import bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend as C

def cam_f2d(+t: C.LcCamTabs, +k: L.LcBlock64, s: M.CmBlock) -> {s == C.cam.op(C.LcCamF2{t, k}, C.cam.unop(C.LcCamF2{t, k}, s)) : M.CmBlock}:
  match s:
    case M.CmBlock{+s0, +s1, +s2, +s3}:
      %u32_xx(s0, C.cam.hi(C.cam.f(t, L.LcBlock64{s2, s3}, k))) : {M.CmBlock{s0, s1, s2, s3} == M.CmBlock{_, U32.xor(U32.xor(s1, C.cam.lo(C.cam.f(t, L.LcBlock64{s2, s3}, k))), C.cam.lo(C.cam.f(t, L.LcBlock64{s2, s3}, k))), s2, s3} : M.CmBlock}
      %u32_xx(s1, C.cam.lo(C.cam.f(t, L.LcBlock64{s2, s3}, k))) : {M.CmBlock{s0, s1, s2, s3} == M.CmBlock{s0, _, s2, s3} : M.CmBlock}
      {==}

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.xor
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend&name=CmBlock
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/PROOF.bend&name=u32_xx
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend&name=LcCamOp
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend&name=LcCamTabs
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend&name=cam.f
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend&name=cam.hi
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend&name=cam.lo
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend&name=cam.op
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend&name=cam.unop
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=LcBlock64