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-rw-r--r--mpi.cpp201
1 files changed, 0 insertions, 201 deletions
diff --git a/mpi.cpp b/mpi.cpp
deleted file mode 100644
index 6ca2d83..0000000
--- a/mpi.cpp
+++ /dev/null
@@ -1,201 +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 "mpi.h"
-
-#include "datatypes.h"
-#include "cipher.h"
-
-#include <stdexcept>
-#include <gcrypt.h>
-
-#include <iostream>
-
-Mpi::Mpi() : val_(NULL)
-{
- val_ = gcry_mpi_set_ui(NULL, 0);
- if(!val_)
- throw std::bad_alloc();
-}
-
-Mpi::Mpi(u_int8_t length) : val_(NULL)
-{
- val_ = gcry_mpi_new(length);
- if(!val_)
- throw std::bad_alloc();
-}
-
-Mpi::Mpi(const Mpi &src) : val_(NULL)
-{
- val_ = gcry_mpi_copy(src.val_);
- if(!val_)
- throw std::bad_alloc();
-}
-
-Mpi::Mpi(const u_int8_t* src, u_int32_t len) : val_(NULL)
-{
- u_int8_t* src_cpy = new u_int8_t[len+1];
- if(!src_cpy)
- throw std::bad_alloc();
-
- u_int8_t* buf = src_cpy;
- u_int32_t buf_len = len;
- if(src[0] & 0x80) // this would be a negative number, scan can't handle this :(
- {
- src_cpy[0] = 0;
- buf++;
- buf_len++;
- }
- std::memcpy(buf, src, len);
-
- gcry_mpi_scan( &val_, GCRYMPI_FMT_STD, src_cpy, buf_len, NULL );
- delete[] src_cpy;
- if(!val_)
- throw std::bad_alloc();
-}
-
-Mpi::~Mpi()
-{
- gcry_mpi_release( val_ );
-}
-
-
-void Mpi::operator=(const Mpi &src)
-{
- gcry_mpi_release( val_ );
- val_ = gcry_mpi_copy(src.val_);
- if(!val_)
- throw std::bad_alloc();
-}
-
-void Mpi::operator=(const u_int32_t src)
-{
- gcry_mpi_release( val_ );
- val_ = gcry_mpi_set_ui(NULL, src);
- if(!val_)
- throw std::bad_alloc();
-}
-
-Mpi Mpi::operator+(const Mpi &b) const
-{
- Mpi res;
- gcry_mpi_add(res.val_, val_, b.val_);
- return res;
-}
-
-Mpi Mpi::operator+(const u_int32_t &b) const
-{
- Mpi res;
- gcry_mpi_add_ui(res.val_, val_, b);
- return res;
-}
-
-Mpi Mpi::operator*(const u_int32_t n) const
-{
- Mpi res;
- gcry_mpi_mul_ui(res.val_, val_, n);
- return res;
-}
-
-Mpi Mpi::operator/(const Mpi &b) const
-{
- Mpi res;
- gcry_mpi_div(res.val_, NULL, val_, b.val_, 0);
- return res;
-}
-
-//TODO: this is outstandingly ugly!!!!!!!!
-Mpi Mpi::operator^(const Mpi &b) const
-{
- u_int32_t a_len = gcry_mpi_get_nbits(val_);
- u_int32_t b_len = gcry_mpi_get_nbits(b.val_);
-
- Mpi res = (a_len >= b_len) ? Mpi(*this) : Mpi(b);
-
- for(u_int32_t i=0; i<a_len && i<b_len; i++) {
- if(gcry_mpi_test_bit(val_, i) ^ gcry_mpi_test_bit(b.val_, i))
- gcry_mpi_set_bit(res.val_, i);
- else
- gcry_mpi_clear_bit(res.val_, i);
- }
- return res;
-}
-
-Mpi Mpi::mul2exp(u_int32_t e) const
-{
- Mpi res;
- gcry_mpi_mul_2exp( res.val_, val_, e );
- return res;
-}
-
-//TODO: problem, seems as gcry_mpi_(a)print doesn't work for mpi values of '0'
-u_int8_t* Mpi::getNewBuf(size_t* written) const
-{
- u_int8_t* res_cpy;
- gcry_mpi_aprint( GCRYMPI_FMT_STD, &res_cpy, written, val_ );
- if(!res_cpy)
- throw std::bad_alloc();
-
- u_int8_t* buf = res_cpy;
- if(*written > 1 && ! (res_cpy[0])) // positive number with highestBit set
- {
- buf++;
- (*written)--;
- }
-
- u_int8_t* res = new u_int8_t[*written];
- if(!res)
- throw std::bad_alloc();
-
- std::memcpy(res, buf, *written);
-
- gcry_free(res_cpy);
-
- return res;
-}
-
-//TODO: why does this not work ?????
-std::string Mpi::getHexDump() const
-{
-// u_int8_t *buf;
-// u_int32_t len;
-// gcry_mpi_aprint( GCRYMPI_FMT_HEX, &buf, &len, val_ );
-// std::string res(buf, len);
-// delete[] buf;
-
- gcry_mpi_dump( val_ );
- std::string res("\n");
- return res;
-}
-
-u_int32_t Mpi::getLength() const
-{
- return gcry_mpi_get_nbits( val_ );
-}