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/*
* Copyright (C) 2019 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "PasswordKey.h"
#include "core/Tools.h"
#include "crypto/CryptoHash.h"
#include <gcrypt.h>
#include <algorithm>
#include <cstring>
QUuid PasswordKey::UUID("77e90411-303a-43f2-b773-853b05635ead");
constexpr int PasswordKey::SHA256_SIZE;
PasswordKey::PasswordKey()
: Key(UUID)
, m_key(static_cast<char*>(gcry_malloc_secure(SHA256_SIZE)))
{
}
PasswordKey::PasswordKey(const QString& password)
: Key(UUID)
, m_key(static_cast<char*>(gcry_malloc_secure(SHA256_SIZE)))
{
setPassword(password);
}
PasswordKey::~PasswordKey()
{
if (m_key) {
gcry_free(m_key);
m_key = nullptr;
}
}
QSharedPointer<PasswordKey> PasswordKey::fromRawKey(const QByteArray& rawKey)
{
auto result = QSharedPointer<PasswordKey>::create();
std::memcpy(result->m_key, rawKey.data(), std::min(SHA256_SIZE, rawKey.size()));
return result;
}
QByteArray PasswordKey::rawKey() const
{
return QByteArray::fromRawData(m_key, SHA256_SIZE);
}
void PasswordKey::setPassword(const QString& password)
{
std::memcpy(m_key, CryptoHash::hash(password.toUtf8(), CryptoHash::Sha256).data(), SHA256_SIZE);
}
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