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diff --git a/kftpgrabber/src/misc/kftpotpgenerator.h b/kftpgrabber/src/misc/kftpotpgenerator.h
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+/*
+ * This file is part of the KFTPGrabber project
+ *
+ * Copyright (C) 2003-2004 by the KFTPGrabber developers
+ * Copyright (C) 2003-2004 Jernej Kos <kostko@jweb-network.net>
+ *
+ * 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 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
+ * NON-INFRINGEMENT.  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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+
+#ifndef KFTPOTPGENERATOR_H
+#define KFTPOTPGENERATOR_H
+
+#include <qstring.h>
+
+enum AlgType {
+  ALG_MD4,
+  ALG_MD5,
+  ALG_RMD160,
+  ALG_SHA1,
+  ALG_NONE
+};
+
+/*
+  KFTPOTPGenerator - OTP generator for purpuse of FTP auth, based on code from
+  otpCalc copyright (C) 2001 by Anthony D. Urso
+*/
+
+/**
+@author Jernej Kos
+*/
+class KFTPOTPGenerator{
+public:
+    KFTPOTPGenerator(const QString &challenge, const QString &password);
+    QString generateOTP();
+private:
+    QString m_seed;
+    QString m_password;
+    AlgType m_alg;
+    int m_seq;
+
+    void genDigest(char *msg, unsigned int len);
+    void genDigestMD(int type, char *msg, unsigned int len);
+    void genDigestRS(int type, char *msg, unsigned int len);
+    static unsigned short extract(char *s, int start, int len);
+    unsigned char parity(unsigned char *msg);
+    unsigned char *sixWords(unsigned char *msg, char *response);
+};
+
+#endif