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mp_gf2m.h
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00001 /*
00002  * ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Multi-precision Binary Polynomial Arithmetic Library.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Sun Microsystems, Inc.
00019  * Portions created by the Initial Developer are Copyright (C) 2003
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Sheueling Chang Shantz <sheueling.chang@sun.com> and
00024  *   Douglas Stebila <douglas@stebila.ca> of Sun Laboratories.
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either the GNU General Public License Version 2 or later (the "GPL"), or
00028  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
00031  * under the terms of either the GPL or the LGPL, and not to allow others to
00032  * use your version of this file under the terms of the MPL, indicate your
00033  * decision by deleting the provisions above and replace them with the notice
00034  * and other provisions required by the GPL or the LGPL. If you do not delete
00035  * the provisions above, a recipient may use your version of this file under
00036  * the terms of any one of the MPL, the GPL or the LGPL.
00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 #ifndef _MP_GF2M_H_
00041 #define _MP_GF2M_H_
00042 
00043 #include "mpi.h"
00044 
00045 mp_err mp_badd(const mp_int *a, const mp_int *b, mp_int *c);
00046 mp_err mp_bmul(const mp_int *a, const mp_int *b, mp_int *c);
00047 
00048 /* For modular arithmetic, the irreducible polynomial f(t) is represented 
00049  * as an array of int[], where f(t) is of the form: 
00050  *     f(t) = t^p[0] + t^p[1] + ... + t^p[k]
00051  * where m = p[0] > p[1] > ... > p[k] = 0.
00052  */
00053 mp_err mp_bmod(const mp_int *a, const unsigned int p[], mp_int *r);
00054 mp_err mp_bmulmod(const mp_int *a, const mp_int *b, const unsigned int p[], 
00055     mp_int *r);
00056 mp_err mp_bsqrmod(const mp_int *a, const unsigned int p[], mp_int *r);
00057 mp_err mp_bdivmod(const mp_int *y, const mp_int *x, const mp_int *pp, 
00058     const unsigned int p[], mp_int *r);
00059 
00060 int mp_bpoly2arr(const mp_int *a, unsigned int p[], int max);
00061 mp_err mp_barr2poly(const unsigned int p[], mp_int *a);
00062 
00063 #endif /* _MP_GF2M_H_ */