def ccmp.len_tag

bend-osdev-cipher-modes@0.1.0.0 · PROOF.bend:1826

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
import bend-osdev-cipher-modes@0.1.0.0/ccm.bend as CC

1826def ccmp.len_tag(~K: Data, ~enc: K -> M.CmBlock -> M.CmBlock, +k: K, +m: Nat, +l: Nat, +nv: List<&2, U32>, +av: List<&2, U32>, +pv: List<&2, U32>, h: {Nat.is_le(m, 16n) == True{} : Bool}) -> {B.len(CC.ccm.tag(~K, ~enc, k, m, l, nv, av, pv)) == m : Nat}:
1827  li.len_take(m, M.cm.bytes_of(CC.ccm.mac(~K, ~enc, k, m, l, nv, av, pv)))(h)