def cr.vm.kdf.go

bend-osdev-crypto@0.1.0.0 · vmac.bend:133

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

133def cr.vm.kdf.go(~K: Data, ~Blk: Data, ~bsize: Nat, ~enc: K -> Blk -> Blk, ~blk_of: B.Octets -> Maybe<&2, Blk>, ~blk_to: Blk -> B.Octets, blocks: Nat, +k: K, +index: U32, +c: U32) -> List<&2, U32>:
134  match blocks:
135    case 0n:
136      Nil{}
137    case 1n+p:
138      +o = B.Octets.of_list(Con{index, B.append(B.zeros(Nat.sub(bsize, 5n)), B.be32(c))})
139      B.append(cr.vm.e(~K, ~Blk, ~enc, ~blk_of, ~blk_to, k, o), cr.vm.kdf.go(~K, ~Blk, ~bsize, ~enc, ~blk_of, ~blk_to, p, k, index, U32.add(c, 1)))