BeeCrypt: include/beecrypt/mpnumber.h Source File

00001 /*
00002  * Copyright (c) 2003 Bob Deblier
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with this library; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017  *
00018  */
00019 
00026 #ifndef _MPNUMBER_H
00027 #define _MPNUMBER_H
00028 
00029 #include "beecrypt/mp.h"
00030 
00031 #ifdef __cplusplus
00032 # include <iostream>
00033 #endif
00034 
00035 #ifdef __cplusplus
00036 struct BEECRYPTAPI mpnumber
00037 #else
00038 struct _mpnumber
00039 #endif
00040 {
00041     size_t  size;
00042     mpw*    data;
00043 
00044 #ifdef __cplusplus
00045     static const mpnumber ZERO;
00046     static const mpnumber ONE;
00047 
00048     mpnumber();
00049     mpnumber(unsigned int);
00050     mpnumber(size_t, const mpw*);
00051     mpnumber(const mpnumber&);
00052     ~mpnumber();
00053 
00054     const mpnumber& operator=(const mpnumber&);
00055 
00056     void wipe();
00057 
00058     size_t bitlength() const;
00059 #endif
00060 };
00061 
00062 #ifndef __cplusplus
00063 typedef struct _mpnumber mpnumber;
00064 #else
00065 BEECRYPTAPI
00066 std::ostream& operator<<(std::ostream&, const mpnumber&);
00067 #endif
00068 
00069 #ifdef __cplusplus
00070 extern "C" {
00071 #endif
00072 
00073 BEECRYPTAPI
00074 void mpnzero(mpnumber*);
00075 BEECRYPTAPI
00076 void mpnsize(mpnumber*, size_t);
00077 BEECRYPTAPI
00078 void mpninit(mpnumber*, size_t, const mpw*);
00079 BEECRYPTAPI
00080 void mpnfree(mpnumber*);
00081 BEECRYPTAPI
00082 void mpncopy(mpnumber*, const mpnumber*);
00083 BEECRYPTAPI
00084 void mpnwipe(mpnumber*);
00085 
00086 BEECRYPTAPI
00087 void mpnset   (mpnumber*, size_t, const mpw*);
00088 BEECRYPTAPI
00089 void mpnsetw  (mpnumber*, mpw);
00090 
00091 BEECRYPTAPI
00092 int mpnsetbin(mpnumber*, const byte*, size_t);
00093 BEECRYPTAPI
00094 int mpnsethex(mpnumber*, const char*);
00095 
00096 BEECRYPTAPI
00097 int  mpninv(mpnumber*, const mpnumber*, const mpnumber*);
00098 
00101 BEECRYPTAPI
00102 size_t mpntrbits(mpnumber*, size_t);
00103 BEECRYPTAPI
00104 size_t mpnbits(const mpnumber*);
00105 
00106 #ifdef __cplusplus
00107 }
00108 #endif
00109 
00110 #endif