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/*
* Copyright (C) 2008-2010 The QXmpp developers
*
* Authors:
* Manjeet Dahiya
* Jeremy Lainé
*
* Source:
* http://code.google.com/p/qxmpp
*
* This file is a part of QXmpp library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
*/
#include <cstdlib>
#include <QCryptographicHash>
#include "QXmppSaslAuth.h"
#include "QXmppUtils.h"
QByteArray QXmppSaslDigestMd5::authzid() const
{
return m_authzid;
}
void QXmppSaslDigestMd5::setAuthzid(const QByteArray &authzid)
{
m_authzid = authzid;
}
QByteArray QXmppSaslDigestMd5::cnonce() const
{
return m_cnonce;
}
void QXmppSaslDigestMd5::setCnonce(const QByteArray &cnonce)
{
m_cnonce = cnonce;
}
QByteArray QXmppSaslDigestMd5::digestUri() const
{
return m_digestUri;
}
void QXmppSaslDigestMd5::setDigestUri(const QByteArray &digestUri)
{
m_digestUri = digestUri;
}
QByteArray QXmppSaslDigestMd5::nc() const
{
return m_nc;
}
void QXmppSaslDigestMd5::setNc(const QByteArray &nc)
{
m_nc = nc;
}
QByteArray QXmppSaslDigestMd5::nonce() const
{
return m_nonce;
}
void QXmppSaslDigestMd5::setNonce(const QByteArray &nonce)
{
m_nonce = nonce;
}
QByteArray QXmppSaslDigestMd5::realm() const
{
return m_realm;
}
void QXmppSaslDigestMd5::setRealm(const QByteArray &realm)
{
m_realm = realm;
}
QByteArray QXmppSaslDigestMd5::username() const
{
return m_username;
}
void QXmppSaslDigestMd5::setUsername(const QByteArray &username)
{
m_username = username;
}
void QXmppSaslDigestMd5::setPassword(const QByteArray &password)
{
m_password = password;
}
QByteArray QXmppSaslDigestMd5::generateNonce()
{
QByteArray nonce(32, 'm');
for(int n = 0; n < nonce.size(); ++n)
nonce[n] = (char)(256.0*qrand()/(RAND_MAX+1.0));
// The random data can the '=' char is not valid as it is a delimiter,
// so to be safe, base64 the nonce
return nonce.toBase64();
}
QByteArray QXmppSaslDigestMd5::calculateDigest(const QByteArray &A2) const
{
const QByteArray a1 = m_username + ':' + m_realm + ':' + m_password;
QByteArray ha1 = QCryptographicHash::hash(a1, QCryptographicHash::Md5);
ha1 += ':' + m_nonce + ':' + m_cnonce;
if (!m_authzid.isEmpty())
ha1 += ':' + m_authzid;
QByteArray A1(ha1);
QByteArray HA1 = QCryptographicHash::hash(A1, QCryptographicHash::Md5).toHex();
QByteArray HA2 = QCryptographicHash::hash(A2, QCryptographicHash::Md5).toHex();
QByteArray KD = HA1 + ':' + m_nonce + ':' + m_nc + ':' + m_cnonce + ':'
+ "auth" + ':' + HA2;
return QCryptographicHash::hash(KD, QCryptographicHash::Md5).toHex();
}
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