Serpent.sp.sop: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend as Serpent
Lines 158-163 of bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend&start_line=158&end_line=163

import Base
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M

# the S-box layer (or its inverse) on the state X0..X3
def sp.sop(+b: LcSpBox, +inv: Bool, s: M.CmBlock) -> M.CmBlock:
  match s:
    case M.CmBlock{U32{w0}, U32{w1}, U32{w2}, U32{w3}}:
      +r = sp.layer(b, inv, 32n, LcSpQ{w0, w1, w2, w3})
      M.CmBlock{U32{sp.qa(32n, r)}, U32{sp.qb(32n, r)}, U32{sp.qc(32n, r)}, U32{sp.qd(32n, r)}}

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  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/serpent.bend&name=LcSpBox
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend&name=LcSpQ
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend&name=sp.layer
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend&name=sp.qa
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend&name=sp.qb
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend&name=sp.qc
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/serpent.bend&name=sp.qd