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def ccm.ebody

bend-osdev-cipher-modes@0.1.0.0 · ccm.bend:131

import bend-osdev-cipher-modes@0.1.0.0/ccm.bend as Ccm
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

131# the ciphertext of pv, then the tag
132def ccm.ebody(~K: Data, ~enc: K -> M.CmBlock -> M.CmBlock, +k: K, +m: Nat, +nv: List<&2, U32>, +av: List<&2, U32>, +pv: List<&2, U32>) -> List<&2, U32>:
133  +l = Nat.sub(15n, B.len(nv))
134  +a0 = ccm.a0(l, nv)
135  B.append(ccm.xcrypt(~K, ~enc, k, a0, M.cm.split(pv)), M.cm.xor_bytes(ccm.tag(~K, ~enc, k, m, l, nv, av, pv), M.cm.bytes_of(enc(k, a0))))

Uses (13)

Used by (3)