def des.schedule

bend-osdev-legacy-ciphers@0.1.0.0 · des.bend:318

import Base

318# K_1 .. K_16 from C_0, D_0
319def des.schedule(shifts: List<&2, Nat>, +sp: LcDesSp, +c: U32, +d: U32) -> List<&2, LcDesRk>:
320  match shifts:
321    case Nil{}:
322      Nil{}
323    case Con{+s, t}:
324      +c2 = des.rot28(c, s)
325      +d2 = des.rot28(d, s)
326      Con{des.subkey(sp, c2, d2), des.schedule(t, sp, c2, d2)}