def sp.mask_join_onto

bend-osdev-cipher-modes@0.1.0.0 · PROOF.bend:1411

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

1411def sp.mask_join_onto(bs: List<&2, M.CmBlock>, +rest: List<&2, U32>) -> {B.mask(M.cm.join_onto(bs, rest)) == M.cm.join_onto(bs, B.mask(rest)) : List<&2, U32>}:
1412  match bs:
1413    case Nil{}:
1414      {==}
1415    case Con{+b, +t}:
1416      %Equal.sym(List<&2, U32>, B.mask(M.cm.bytes_onto(b, M.cm.join_onto(t, rest))), M.cm.bytes_onto(b, B.mask(M.cm.join_onto(t, rest))), sp.mask_blk(b, M.cm.join_onto(t, rest))) : {_ == M.cm.bytes_onto(b, M.cm.join_onto(t, B.mask(rest))) : List<&2, U32>}
1417      %sp.mask_join_onto(t, rest) : {M.cm.bytes_onto(b, B.mask(M.cm.join_onto(t, rest))) == M.cm.bytes_onto(b, _) : List<&2, U32>}
1418      {==}