def cr.vm.iters

bend-osdev-crypto@0.1.0.0 · vmac.bend:361

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B

361def cr.vm.iters(~K: Data, ~Blk: Data, ~bsize: Nat, ~enc: K -> Blk -> Blk, ~blk_of: B.Octets -> Maybe<&2, Blk>, ~blk_to: Blk -> B.Octets, n: Nat, +k: K, +i: Nat, +l3: List<&2, CrU128>) -> List<&2, CrVmIter>:
362  match n:
363    case 0n:
364      Nil{}
365    case 1n+p:
366      +nh = cr.vm.words(16n, True{}, B.drop(Nat.mul(16n, i), cr.vm.kdf(~K, ~Blk, ~bsize, ~enc, ~blk_of, ~blk_to, k, 128, Nat.add(128n, Nat.mul(16n, i)))), 0n)
367      +poly = cr.vm.pmask(cr.vm.u128.of(B.drop(Nat.mul(16n, i), cr.vm.kdf(~K, ~Blk, ~bsize, ~enc, ~blk_of, ~blk_to, k, 192, Nat.mul(16n, Nat.add(i, 1n))))))
368      Con{cr.vm.iter.of(nh, poly, cr.vm.nth.pair(l3, i)), cr.vm.iters(~K, ~Blk, ~bsize, ~enc, ~blk_of, ~blk_to, p, k, Nat.add(i, 1n), l3)}