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/*
* Copyright (C) 2017 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 "Kdf.h"
#include "Kdf_p.h"
#include <QtConcurrent>
#include "crypto/Random.h"
Kdf::Kdf(Uuid uuid)
: m_rounds(KDF_DEFAULT_ROUNDS)
, m_seed(QByteArray(KDF_DEFAULT_SEED_SIZE, 0))
, m_uuid(uuid)
{
}
Uuid Kdf::uuid() const
{
return m_uuid;
}
int Kdf::rounds() const
{
return m_rounds;
}
QByteArray Kdf::seed() const
{
return m_seed;
}
bool Kdf::setRounds(int rounds)
{
m_rounds = rounds;
return true;
}
bool Kdf::setSeed(const QByteArray& seed)
{
if (seed.size() != m_seed.size()) {
return false;
}
m_seed = seed;
return true;
}
void Kdf::randomizeSeed()
{
setSeed(randomGen()->randomArray(m_seed.size()));
}
int Kdf::benchmark(int msec) const
{
BenchmarkThread thread1(msec, this);
BenchmarkThread thread2(msec, this);
thread1.start();
thread2.start();
thread1.wait();
thread2.wait();
return qMax(1, qMin(thread1.rounds(), thread2.rounds()));
}
Kdf::BenchmarkThread::BenchmarkThread(int msec, const Kdf* kdf)
: m_msec(msec)
, m_kdf(kdf)
{
}
int Kdf::BenchmarkThread::rounds()
{
return m_rounds;
}
void Kdf::BenchmarkThread::run()
{
m_rounds = m_kdf->benchmarkImpl(m_msec);
}
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