Lrw.cr.lrw.benc: def of bend-osdev-crypto@0.1.0.0
Import: import bend-osdev-crypto@0.1.0.0/lrw.bend as Lrw
Lines 30-36 of bend-osdev-crypto@0.1.0.0/lrw.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-crypto@0.1.0.0/lrw.bend&start_line=30&end_line=36

import Base

# one block under a tweak
def cr.lrw.benc(~K: Data, ~Blk: Data, ~enc: K -> Blk -> Blk, ~bxor: Blk -> Blk -> Blk, +k: K, t: Maybe<&2, Blk>, p: Blk) -> Blk:
  match t:
    case None{}:
      enc(k, p)
    case Some{+x}:
      bxor(enc(k, bxor(p, x)), x)

Uses (1):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe