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// Copyright (C) 2011-2015 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <cryptolink.h>
#include <cryptolink/crypto_hmac.h>
#include <boost/scoped_ptr.hpp>
#include <cstring>
namespace isc {
namespace cryptolink {
void
signHMAC(const void* data, const size_t data_len, const void* secret,
size_t secret_len, const HashAlgorithm hash_algorithm,
isc::util::OutputBuffer& result, size_t len)
{
boost::scoped_ptr<HMAC> hmac(
CryptoLink::getCryptoLink().createHMAC(secret,
secret_len,
hash_algorithm));
hmac->update(data, data_len);
if (len == 0) {
len = hmac->getOutputLength();
}
hmac->sign(result, len);
}
bool
verifyHMAC(const void* data, const size_t data_len, const void* secret,
size_t secret_len, const HashAlgorithm hash_algorithm,
const void* sig, const size_t sig_len)
{
boost::scoped_ptr<HMAC> hmac(
CryptoLink::getCryptoLink().createHMAC(secret,
secret_len,
hash_algorithm));
hmac->update(data, data_len);
size_t len = sig_len;
if (len == 0) {
len = hmac->getOutputLength();
}
return (hmac->verify(sig, len));
}
void
deleteHMAC(HMAC* hmac) {
delete hmac;
}
} // namespace cryptolink
} // namespace isc
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