Added QMessageAuthenticationCode

QMessageAuthenticationCode is HMAC implementation based on
QCryptographicHash abilities. HMAC is often used in OAuth and similar
authentication protocols.

Change-Id: Ifc73947ad06c36a1b770315b7e89ba5c01c5e79e
Reviewed-by: Richard J. Moore <rich@kde.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/src/corelib/tools/qmessageauthenticationcode.h b/src/corelib/tools/qmessageauthenticationcode.h
new file mode 100644
index 0000000000..e84a1c84b4
--- /dev/null
+++ b/src/corelib/tools/qmessageauthenticationcode.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Ruslan Nigmatullin <euroelessar@yandex.ru>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMESSAGEAUTHENTICATIONCODE_H
+#define QMESSAGEAUTHENTICATIONCODE_H
+
+#include <QtCore/qcryptographichash.h>
+
+QT_BEGIN_HEADER
+
+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
+
+QT_END_HEADER
+
+#endif