mirror of
https://github.com/keepassxreboot/keepassxc.git
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64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
/*
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* Copyright (C) 2010 Felix Geyer <debfx@fobos.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 or (at your option)
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* version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KEEPASSX_RANDOM_H
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#define KEEPASSX_RANDOM_H
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#include <QByteArray>
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#include <QScopedPointer>
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class RandomBackend
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{
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public:
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virtual void randomize(void* data, int len) = 0;
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virtual ~RandomBackend() {}
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};
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class Random
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{
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public:
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void randomize(QByteArray& ba);
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QByteArray randomArray(int len);
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/**
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* Generate a random quint32 in the range [0, @p limit)
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*/
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quint32 randomUInt(quint32 limit);
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/**
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* Generate a random quint32 in the range [@p min, @p max)
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*/
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quint32 randomUIntRange(quint32 min, quint32 max);
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static Random* instance();
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static void createWithBackend(RandomBackend* backend);
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private:
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explicit Random(RandomBackend* backend);
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QScopedPointer<RandomBackend> m_backend;
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static Random* m_instance;
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Q_DISABLE_COPY(Random)
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};
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inline Random* randomGen() {
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return Random::instance();
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}
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#endif // KEEPASSX_RANDOM_H
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