PROOF.mask_eout: def of bend-osdev-aead@0.1.0.0
Import: import bend-osdev-aead@0.1.0.0/PROOF.bend as PROOF
Lines 285-293 of bend-osdev-aead@0.1.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-aead@0.1.0.0/PROOF.bend&start_line=285&end_line=293

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-aead@0.1.0.0/aesround.bend as R
import bend-osdev-aead@0.1.0.0/aegis128.bend as G

# the ciphertext's bytes are bytes, and as many as the message's
def mask_eout(xs: List<&2, U32>, +sb: R.AdSbox, +r: G.AdAegisRun) -> {G.ad.ae.eout(xs, sb, r) == B.mask(G.ad.ae.eout(xs, sb, r)) : List<&2, U32>}:
  match xs:
    case Nil{}:
      {==}
    case Con{+x, t}:
      %byte_byte(U32.xor(x, G.ad.ae.zhead(r))) : {Con{B.byte(U32.xor(x, G.ad.ae.zhead(r))), G.ad.ae.eout(t, sb, G.ad.ae.step(sb, r, B.byte(x)))} == Con{_, B.mask(G.ad.ae.eout(t, sb, G.ad.ae.step(sb, r, B.byte(x))))} : List<&2, U32>}
      %mask_eout(t, sb, G.ad.ae.step(sb, r, B.byte(x))) : {Con{B.byte(U32.xor(x, G.ad.ae.zhead(r))), G.ad.ae.eout(t, sb, G.ad.ae.step(sb, r, B.byte(x)))} == Con{B.byte(U32.xor(x, G.ad.ae.zhead(r))), _} : List<&2, U32>}
      {==}

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.xor
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/PROOF.bend&name=byte_byte
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/aegis128.bend&name=AdAegisRun
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/aegis128.bend&name=ad.ae.eout
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/aegis128.bend&name=ad.ae.step
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/aegis128.bend&name=ad.ae.zhead
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/aesround.bend&name=AdSbox
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=byte
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=mask