anytun: authAlgo.h Source File

00001 /*
+00002  *  anytun
+00003  *
+00004  *  The secure anycast tunneling protocol (satp) defines a protocol used
+00005  *  for communication between any combination of unicast and anycast
+00006  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
+00007  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
+00008  *  ethernet, ip, arp ...). satp directly includes cryptography and
+00009  *  message authentication based on the methodes used by SRTP.  It is
+00010  *  intended to deliver a generic, scaleable and secure solution for
+00011  *  tunneling and relaying of packets of any protocol.
+00012  *
+00013  *
+00014  *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
+00015  *
+00016  *  This program is free software; you can redistribute it and/or modify
+00017  *  it under the terms of the GNU General Public License version 2
+00018  *  as published by the Free Software Foundation.
+00019  *
+00020  *  This program is distributed in the hope that it will be useful,
+00021  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+00022  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+00023  *  GNU General Public License for more details.
+00024  *
+00025  *  You should have received a copy of the GNU General Public License
+00026  *  along with this program (see the file COPYING included with this
+00027  *  distribution); if not, write to the Free Software Foundation, Inc.,
+00028  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+00029  */
+00030 
+00031 #ifndef _AUTHALGO_H_
+00032 #define _AUTHALGO_H_
+00033 
+00034 #include "datatypes.h"
+00035 #include "buffer.h"
+00036 
+00037 class AuthAlgo
+00038 {
+00039 public:
+00040   AuthAlgo() {};
+00041   virtual ~AuthAlgo() {};
+00042 
+00043   virtual auth_tag_t calc(const Buffer& buf) = 0;
+00044 };
+00045 
+00046 class NullAuthAlgo : public AuthAlgo
+00047 {
+00048 public:
+00049   auth_tag_t calc(const Buffer& buf);
+00050 };
+00051 
+00052 
+00053 // HMAC_SHA1
+00054 class HmacAuthAlgo : public AuthAlgo
+00055 {
+00056 public:
+00057   auth_tag_t calc(const Buffer& buf);
+00058 };
+00059 
+00060 #endif
+