Kea 2.5.7
crypto_hmac.cc
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1// Copyright (C) 2011-2015 Internet Systems Consortium, Inc. ("ISC")
2//
3// This Source Code Form is subject to the terms of the Mozilla Public
4// License, v. 2.0. If a copy of the MPL was not distributed with this
5// file, You can obtain one at http://mozilla.org/MPL/2.0/.
6
7#include <config.h>
8
9#include <cryptolink.h>
11
12#include <boost/scoped_ptr.hpp>
13
14#include <cstring>
15
16namespace isc {
17namespace cryptolink {
18
19void
20signHMAC(const void* data, const size_t data_len, const void* secret,
21 size_t secret_len, const HashAlgorithm hash_algorithm,
22 isc::util::OutputBuffer& result, size_t len)
23{
24 boost::scoped_ptr<HMAC> hmac(
25 CryptoLink::getCryptoLink().createHMAC(secret,
26 secret_len,
27 hash_algorithm));
28 hmac->update(data, data_len);
29 if (len == 0) {
30 len = hmac->getOutputLength();
31 }
32 hmac->sign(result, len);
33}
34
35
36bool
37verifyHMAC(const void* data, const size_t data_len, const void* secret,
38 size_t secret_len, const HashAlgorithm hash_algorithm,
39 const void* sig, const size_t sig_len)
40{
41 boost::scoped_ptr<HMAC> hmac(
42 CryptoLink::getCryptoLink().createHMAC(secret,
43 secret_len,
44 hash_algorithm));
45 hmac->update(data, data_len);
46 size_t len = sig_len;
47 if (len == 0) {
48 len = hmac->getOutputLength();
49 }
50 return (hmac->verify(sig, len));
51}
52
53void
55 delete hmac;
56}
57
58} // namespace cryptolink
59} // namespace isc
The OutputBuffer class is a buffer abstraction for manipulating mutable data.
Definition: buffer.h:294
Defines the logger used by the top-level component of kea-lfc.