PROOF.xtsp.mask_steal_t: def of bend-osdev-cipher-modes@0.1.0.0
Import: import bend-osdev-cipher-modes@0.1.0.0/PROOF.bend as PROOF
Lines 1481-1489 of bend-osdev-cipher-modes@0.1.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-cipher-modes@0.1.0.0/PROOF.bend&start_line=1481&end_line=1489

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
import bend-osdev-cipher-modes@0.1.0.0/xts.bend as T

# the final partial ciphertext block is masked, and splits into no blocks
def xtsp.mask_steal_t(~K: Data, ~enc: K -> M.CmBlock -> M.CmBlock, +k: K, +p: M.CmBlock, tl: List<&2, U32>, +t: M.CmBlock) -> {B.mask(T.xts.steal_t(~K, ~enc, k, p, tl, t)) == T.xts.steal_t(~K, ~enc, k, p, tl, t) : List<&2, U32>}:
  match tl:
    case Nil{}:
      {==}
    case Con{+h, +r}:
      %Equal.sym(List<&2, U32>, B.mask(B.take(B.len(Con{h, r}), M.cm.bytes_of(T.xts.benc(~K, ~enc, k, p, t)))), B.take(B.len(Con{h, r}), B.mask(M.cm.bytes_of(T.xts.benc(~K, ~enc, k, p, t)))), li.mask_take(B.len(Con{h, r}), M.cm.bytes_of(T.xts.benc(~K, ~enc, k, p, t)))) : {_ == B.take(B.len(Con{h, r}), M.cm.bytes_of(T.xts.benc(~K, ~enc, k, p, t))) : List<&2, U32>}
      %Equal.sym(List<&2, U32>, B.mask(M.cm.bytes_onto(T.xts.benc(~K, ~enc, k, p, t), Nil{})), M.cm.bytes_onto(T.xts.benc(~K, ~enc, k, p, t), B.mask(Nil{})), sp.mask_blk(T.xts.benc(~K, ~enc, k, p, t), Nil{})) : {B.take(B.len(Con{h, r}), _) == B.take(B.len(Con{h, r}), M.cm.bytes_of(T.xts.benc(~K, ~enc, k, p, t))) : List<&2, U32>}
      {==}

Uses (13):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  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=bend-osdev-bytes@0.1.1.1/bytes.bend&name=len
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=mask
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=take
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-modes@0.1.0.0/PROOF.bend&name=li.mask_take
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-modes@0.1.0.0/PROOF.bend&name=sp.mask_blk
  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-cipher-modes@0.1.0.0/cipher_modes.bend&name=cm.bytes_of
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend&name=cm.bytes_onto
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-modes@0.1.0.0/xts.bend&name=xts.benc
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-cipher-modes@0.1.0.0/xts.bend&name=xts.steal_t