Serpent.sp.prekeys: 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 314-324 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=314&end_line=324

import Base
import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as L

def sp.prekeys(n: Nat, +i: U32, win: List<&2, U32>) -> List<&2, U32>:
  match n:
    case 0n:
      Nil{}
    case 1n+p:
      match win:
        case Con{a, Con{b, Con{c, Con{+d, Con{e, Con{+f, Con{g, Con{+h, t}}}}}}}}:
          +w = L.lc.rotl(U32.xor(U32.xor(U32.xor(a, d), U32.xor(f, h)), U32.xor(2654435769, i)), 11n)
          Con{w, sp.prekeys(p, U32.add(i, 1), [b, c, d, e, f, g, h, w])}
        case _:
          Nil{}

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.xor
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=lc.rotl