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/* Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
*
* 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
*
*
* @file key-aes-impl.cpp
* @author Maciej Karpiuk (m.karpiuk2@samsung.com)
* @version 1.0
* @brief AES key implementation.
*/
#include <dpl/log/log.h>
#include <ckm/ckm-type.h>
#include <key-aes-impl.h>
namespace CKM {
KeyAESImpl::KeyAESImpl(const RawBuffer &buf) : m_key(buf)
{
// buf stores bytes -> compare the bit sizes
switch (buf.size() * 8) {
case 128:
case 192:
case 256:
break;
default:
throw std::invalid_argument("invalid AES key size");
}
}
bool KeyAESImpl::empty() const
{
return (getSize() == 0);
}
KeyType KeyAESImpl::getType() const
{
return KeyType::KEY_AES;
}
RawBuffer KeyAESImpl::getDER() const
{
return m_key;
}
int KeyAESImpl::getSize() const
{
return m_key.size();
}
KeyShPtr Key::createAES(const RawBuffer &raw)
{
try {
KeyShPtr output = std::make_shared<KeyAESImpl>(raw);
if (output->empty())
output.reset();
return output;
} catch (const std::bad_alloc &) {
LogDebug("Bad alloc during KeyAESImpl creation");
} catch (const std::invalid_argument &e) {
LogDebug(e.what());
} catch (...) {
LogError("Critical error: Unknown exception was caught during KeyAESImpl creation");
}
return KeyShPtr();
}
} // namespace CKM
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