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/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <hicn/transport/auth/crypto_hash.h>
extern "C" {
#include <parc/security/parc_CryptoHasher.h>
};
namespace transport {
namespace auth {
class CryptoHasher {
public:
CryptoHasher(CryptoHashType hash_type)
: hasher_(parcCryptoHasher_Create(
static_cast<PARCCryptoHashType>(hash_type))),
managed_(true) {}
CryptoHasher(PARCCryptoHasher* hasher) : hasher_(hasher), managed_(false) {}
~CryptoHasher() {
if (managed_) {
parcCryptoHasher_Release(&hasher_);
}
}
CryptoHasher& init() {
if (parcCryptoHasher_Init(hasher_) == -1) {
throw errors::RuntimeException("Cryptohash init failed.");
}
return *this;
}
template <typename T>
CryptoHasher& updateBytes(const T* buffer, std::size_t length) {
if (parcCryptoHasher_UpdateBytes(hasher_, buffer, length) == -1) {
throw errors::RuntimeException("Cryptohash updateBytes failed.");
}
return *this;
}
CryptoHash finalize() {
CryptoHash hash;
hash.hash_ = parcCryptoHasher_Finalize(hasher_);
return hash;
}
private:
PARCCryptoHasher* hasher_;
bool managed_;
};
} // namespace auth
} // namespace transport
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