1 files changed, 0 insertions, 125 deletions
diff --git a/authAlgo.cpp b/authAlgo.cpp
deleted file mode 100644
index 6b1c9ec..0000000
--- a/authAlgo.cpp
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- *  anytun
- *
- *  The secure anycast tunneling protocol (satp) defines a protocol used
- *  for communication between any combination of unicast and anycast
- *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
- *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
- *  ethernet, ip, arp ...). satp directly includes cryptography and
- *  message authentication based on the methodes used by SRTP.  It is
- *  intended to deliver a generic, scaleable and secure solution for
- *  tunneling and relaying of packets of any protocol.
- *
- *
- *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program 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 General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program (see the file COPYING included with this
- *  distribution); if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "authAlgo.h"
-#include "log.h"
-#include "buffer.h"
-#include "encryptedPacket.h"
-
-#include <iostream>
-
-#include <gcrypt.h>
-
-//****** NullAuthAlgo ******
-void NullAuthAlgo::generate(EncryptedPacket& packet)
-{
-}
-
-bool NullAuthAlgo::checkTag(EncryptedPacket& packet)
-{
-  return true;
-}
-
-u_int32_t NullAuthAlgo::getMaxLength()
-{
-  return MAX_LENGTH_;
-}
-
-//****** Sha1AuthAlgo ******
-
-Sha1AuthAlgo::Sha1AuthAlgo() : ctx_(NULL)
-{
-  gcry_error_t err = gcry_md_open( &ctx_, GCRY_MD_SHA1, GCRY_MD_FLAG_HMAC );
-  if( err )
-    cLog.msg(Log::PRIO_CRIT) << "Sha1AuthAlgo::Sha1AuthAlgo: Failed to open message digest algo";
-}
-
-Sha1AuthAlgo::~Sha1AuthAlgo()
-{
-  if(ctx_)
-    gcry_md_close( ctx_ );
-}
-
-void Sha1AuthAlgo::setKey(Buffer& key)
-{
-  if(!ctx_)
-    return;
-
-  gcry_error_t err = gcry_md_setkey( ctx_, key.getBuf(), key.getLength() );
-  if( err )
-    cLog.msg(Log::PRIO_ERR) << "Sha1AuthAlgo::setKey: Failed to set cipher key: " << gpg_strerror( err );
-}
-
-void Sha1AuthAlgo::generate(EncryptedPacket& packet)
-{
-  if(!packet.getAuthTagLength())
-    return;
-
-  gcry_md_reset( ctx_ );
-
-  gcry_md_write( ctx_, packet.getAuthenticatedPortion(), packet.getAuthenticatedPortionLength() );
-  gcry_md_final( ctx_ );
-
-  u_int8_t* tag = packet.getAuthTag();
-  if(packet.getAuthTagLength() > MAX_LENGTH_)
-    std::memset(tag, 0, (packet.getAuthTagLength() - MAX_LENGTH_));
-  
-  u_int8_t* hmac = gcry_md_read(ctx_, 0);
-  u_int32_t length = (packet.getAuthTagLength() < MAX_LENGTH_) ? packet.getAuthTagLength() : MAX_LENGTH_;
-  std::memcpy(&tag[packet.getAuthTagLength() - length], &hmac[MAX_LENGTH_ - length], length);
-}
-
-bool Sha1AuthAlgo::checkTag(EncryptedPacket& packet)
-{
-  if(!packet.getAuthTagLength())
-    return true;
-
-  gcry_md_reset( ctx_ );
-
-  gcry_md_write( ctx_, packet.getAuthenticatedPortion(), packet.getAuthenticatedPortionLength() );
-  gcry_md_final( ctx_ );
-
-  u_int8_t* tag = packet.getAuthTag();
-  if(packet.getAuthTagLength() > MAX_LENGTH_)
-    for(u_int32_t i=0; i < (packet.getAuthTagLength() - MAX_LENGTH_); ++i)
-      if(tag[i]) return false; 
-  
-  u_int8_t* hmac = gcry_md_read(ctx_, 0);
-  u_int32_t length = (packet.getAuthTagLength() < MAX_LENGTH_) ? packet.getAuthTagLength() : MAX_LENGTH_;
-  if(std::memcmp(&tag[packet.getAuthTagLength() - length], &hmac[MAX_LENGTH_ - length], length))
-    return false;
-
-  return true;
-}
-
-u_int32_t Sha1AuthAlgo::getMaxLength()
-{
-  return MAX_LENGTH_;
-}