/****************************************************************************
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** Copyright (C) 2013 Ruslan Nigmatullin <euroelessar@yandex.ru>
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtCore module of the Qt Toolkit.
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****************************************************************************/

#ifndef QMESSAGEAUTHENTICATIONCODE_H
#define QMESSAGEAUTHENTICATIONCODE_H

#include <QtCore/qcryptographichash.h>

QT_BEGIN_NAMESPACE


class QMessageAuthenticationCodePrivate;
class QIODevice;

class Q_CORE_EXPORT QMessageAuthenticationCode
{
public:
    explicit QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
                                        const QByteArray &key = QByteArray());
    ~QMessageAuthenticationCode();

    void reset();

    void setKey(const QByteArray &key);

    void addData(const char *data, int length);
    void addData(const QByteArray &data);
    bool addData(QIODevice *device);

    QByteArray result() const;

    static QByteArray hash(const QByteArray &message, const QByteArray &key,
                           QCryptographicHash::Algorithm method);

private:
    Q_DISABLE_COPY(QMessageAuthenticationCode)
    QMessageAuthenticationCodePrivate *d;
};

QT_END_NAMESPACE

#endif