101 lines
3.4 KiB
C
101 lines
3.4 KiB
C
/* Cryptic -- Cryptographic tools and protocols
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* Copyright (C) 2009 Mikaël Ates <mates@entrouvert.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef CRYPTIC_MATHS_DECOMPOSE_INTEGER_H
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#define CRYPTIC_MATHS_DECOMPOSE_INTEGER_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include <glib.h>
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#include <glib-object.h>
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#include <openssl/bn.h>
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#include "../export.h"
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#define CRYPTIC_TYPE_DECOMPOSEINTEGER (cryptic_decompose_integer_get_type())
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#define CRYPTIC_DECOMPOSEINTEGER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), CRYPTIC_TYPE_DECOMPOSEINTEGER, CrypticDecomposeInteger))
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#define CRYPTIC_DECOMPOSEINTEGER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), CRYPTIC_TYPE_DECOMPOSEINTEGER, CrypticDecomposeIntegerClass))
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#define CRYPTIC_IS_DECOMPOSEINTEGER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), CRYPTIC_TYPE_DECOMPOSEINTEGER))
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#define CRYPTIC_IS_DECOMPOSEINTEGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CRYPTIC_TYPE_DECOMPOSEINTEGER))
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#define CRYPTIC_DECOMPOSEINTEGER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), CRYPTIC_TYPE_DECOMPOSEINTEGER, CrypticDecomposeIntegerClass))
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typedef struct _CrypticDecomposeInteger CrypticDecomposeInteger;
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typedef struct _CrypticDecomposeIntegerClass CrypticDecomposeIntegerClass;
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/**
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* CrypticDecomposeInteger:
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* @a: First square.
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* @b: Second square.
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* @c: Third square.
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* @d: Forth square.
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*
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* Decompose an integer in four squares.
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*
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*/
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struct _CrypticDecomposeInteger{
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GObject parent;
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/*< public >*/
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BIGNUM *a;
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BIGNUM *b;
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BIGNUM *c;
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BIGNUM *d;
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/*< private >*/
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BIGNUM *ONE;
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BIGNUM *TWO;
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BIGNUM *THREE;
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BIGNUM *FOUR;
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BIGNUM *FIVE;
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BIGNUM *SEVEN;
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BIGNUM *EIGHT;
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};
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struct _CrypticDecomposeIntegerClass {
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GObjectClass parent_class;
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};
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CRYPTIC_EXPORT GType cryptic_decompose_integer_get_type(void);
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CRYPTIC_EXPORT CrypticDecomposeInteger* cryptic_decompose_integer_new(BIGNUM *numToDecompose);
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CRYPTIC_EXPORT int cryptic_decompose_integer_sum_two_squares(CrypticDecomposeInteger *di, BIGNUM *numToDecompose);
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CRYPTIC_EXPORT int cryptic_decompose_integer_newton_iteration(CrypticDecomposeInteger *di, BIGNUM *square, BIGNUM *root);
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CRYPTIC_EXPORT int cryptic_decompose_integer_square_root(CrypticDecomposeInteger *di, BIGNUM *square, BIGNUM *root);
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CRYPTIC_EXPORT int cryptic_decompose_integer_back_reduction(CrypticDecomposeInteger *di, int reduction);
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CRYPTIC_EXPORT int cryptic_decompose_integer_verify_decomposition(CrypticDecomposeInteger *di, BIGNUM *numToDecompose);
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/* Accessors */
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BIGNUM* cryptic_getSqrRoot1(CrypticDecomposeInteger *di);
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BIGNUM* cryptic_getSqrRoot2(CrypticDecomposeInteger *di);
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BIGNUM* cryptic_getSqrRoot3(CrypticDecomposeInteger *di);
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BIGNUM* cryptic_getSqrRoot4(CrypticDecomposeInteger *di);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* CRYPTIC_MATHS_DECOMPOSE_INTEGER_H */
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