/src/openssl/crypto/ec/ec_oct.c

Source (jump to first uncovered line)
/* crypto/ec/ec_lib.c */
/*
 * Originally written by Bodo Moeller for the OpenSSL project.
 */
/* ====================================================================
 * Copyright (c) 1998-2003 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * Binary polynomial ECC support in OpenSSL originally developed by
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

#include <string.h>

#include <openssl/err.h>
#include <openssl/opensslv.h>

#include "ec_lcl.h"

int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group,
                                            EC_POINT *point, const BIGNUM *x,
                                            int y_bit, BN_CTX *ctx)
{
    if (group->meth->point_set_compressed_coordinates == 0
        && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
        ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,
              ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
        return 0;
    }
    if (group->meth != point->meth) {
        ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,
              EC_R_INCOMPATIBLE_OBJECTS);
        return 0;
    }
    if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
        if (group->meth->field_type == NID_X9_62_prime_field)
            return ec_GFp_simple_set_compressed_coordinates(group, point, x,
                                                            y_bit, ctx);
        else
#ifdef OPENSSL_NO_EC2M
        {
            ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,
                  EC_R_GF2M_NOT_SUPPORTED);
            return 0;
        }
#else
            return ec_GF2m_simple_set_compressed_coordinates(group, point, x,
                                                             y_bit, ctx);
#endif
    }
    return group->meth->point_set_compressed_coordinates(group, point, x,
                                                         y_bit, ctx);
}

#ifndef OPENSSL_NO_EC2M
int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,
                                             EC_POINT *point, const BIGNUM *x,
                                             int y_bit, BN_CTX *ctx)
{
    if (group->meth->point_set_compressed_coordinates == 0
        && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
        ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M,
              ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
        return 0;
    }
    if (group->meth != point->meth) {
        ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M,
              EC_R_INCOMPATIBLE_OBJECTS);
        return 0;
    }
    if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
        if (group->meth->field_type == NID_X9_62_prime_field)
            return ec_GFp_simple_set_compressed_coordinates(group, point, x,
                                                            y_bit, ctx);
        else
            return ec_GF2m_simple_set_compressed_coordinates(group, point, x,
                                                             y_bit, ctx);
    }
    return group->meth->point_set_compressed_coordinates(group, point, x,
                                                         y_bit, ctx);
}
#endif

size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point,
                          point_conversion_form_t form, unsigned char *buf,
                          size_t len, BN_CTX *ctx)
{
    if (group->meth->point2oct == 0
        && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
        ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
        return 0;
    }
    if (group->meth != point->meth) {
        ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS);
        return 0;
    }
    if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
        if (group->meth->field_type == NID_X9_62_prime_field)
            return ec_GFp_simple_point2oct(group, point, form, buf, len, ctx);
        else
#ifdef OPENSSL_NO_EC2M
        {
            ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_GF2M_NOT_SUPPORTED);
            return 0;
        }
#else
            return ec_GF2m_simple_point2oct(group, point,
                                            form, buf, len, ctx);
#endif
    }

    return group->meth->point2oct(group, point, form, buf, len, ctx);
}

int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,
                       const unsigned char *buf, size_t len, BN_CTX *ctx)
{
    if (group->meth->oct2point == 0
        && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
        ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
        return 0;
    }
    if (group->meth != point->meth) {
        ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS);
        return 0;
    }
    if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
        if (group->meth->field_type == NID_X9_62_prime_field)
            return ec_GFp_simple_oct2point(group, point, buf, len, ctx);
        else
#ifdef OPENSSL_NO_EC2M
        {
            ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_GF2M_NOT_SUPPORTED);
            return 0;
        }
#else
            return ec_GF2m_simple_oct2point(group, point, buf, len, ctx);
#endif
    }
    return group->meth->oct2point(group, point, buf, len, ctx);
}

Line	Count	Source (jump to first uncovered line)
1		/* crypto/ec/ec_lib.c */
2		/*
3		* Originally written by Bodo Moeller for the OpenSSL project.
4		*/
5		/* ====================================================================
6		* Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
7		*
8		* Redistribution and use in source and binary forms, with or without
9		* modification, are permitted provided that the following conditions
10		* are met:
11		*
12		* 1. Redistributions of source code must retain the above copyright
13		* notice, this list of conditions and the following disclaimer.
14		*
15		* 2. Redistributions in binary form must reproduce the above copyright
16		* notice, this list of conditions and the following disclaimer in
17		* the documentation and/or other materials provided with the
18		* distribution.
19		*
20		* 3. All advertising materials mentioning features or use of this
21		* software must display the following acknowledgment:
22		* "This product includes software developed by the OpenSSL Project
23		* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24		*
25		* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26		* endorse or promote products derived from this software without
27		* prior written permission. For written permission, please contact
28		* openssl-core@openssl.org.
29		*
30		* 5. Products derived from this software may not be called "OpenSSL"
31		* nor may "OpenSSL" appear in their names without prior written
32		* permission of the OpenSSL Project.
33		*
34		* 6. Redistributions of any form whatsoever must retain the following
35		* acknowledgment:
36		* "This product includes software developed by the OpenSSL Project
37		* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38		*
39		* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40		* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42		* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43		* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45		* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46		* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48		* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49		* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50		* OF THE POSSIBILITY OF SUCH DAMAGE.
51		* ====================================================================
52		*
53		* This product includes cryptographic software written by Eric Young
54		* (eay@cryptsoft.com). This product includes software written by Tim
55		* Hudson (tjh@cryptsoft.com).
56		*
57		*/
58		/* ====================================================================
59		* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
60		* Binary polynomial ECC support in OpenSSL originally developed by
61		* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
62		*/
63
64		#include <string.h>
65
66		#include <openssl/err.h>
67		#include <openssl/opensslv.h>
68
69		#include "ec_lcl.h"
70
71		int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group,
72		EC_POINT point, const BIGNUM x,
73		int y_bit, BN_CTX *ctx)
74	0	{
75	0	if (group->meth->point_set_compressed_coordinates == 0
76	0	&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
77	0	ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,
78	0	ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
79	0	return 0;
80	0	}
81	0	if (group->meth != point->meth) {
82	0	ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,
83	0	EC_R_INCOMPATIBLE_OBJECTS);
84	0	return 0;
85	0	}
86	0	if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
87	0	if (group->meth->field_type == NID_X9_62_prime_field)
88	0	return ec_GFp_simple_set_compressed_coordinates(group, point, x,
89	0	y_bit, ctx);
90	0	else
91		#ifdef OPENSSL_NO_EC2M
92		{
93		ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,
94		EC_R_GF2M_NOT_SUPPORTED);
95		return 0;
96		}
97		#else
98	0	return ec_GF2m_simple_set_compressed_coordinates(group, point, x,
99	0	y_bit, ctx);
100	0	#endif
101	0	}
102	0	return group->meth->point_set_compressed_coordinates(group, point, x,
103	0	y_bit, ctx);
104	0	}
105
106		#ifndef OPENSSL_NO_EC2M
107		int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,
108		EC_POINT point, const BIGNUM x,
109		int y_bit, BN_CTX *ctx)
110	0	{
111	0	if (group->meth->point_set_compressed_coordinates == 0
112	0	&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
113	0	ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M,
114	0	ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
115	0	return 0;
116	0	}
117	0	if (group->meth != point->meth) {
118	0	ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M,
119	0	EC_R_INCOMPATIBLE_OBJECTS);
120	0	return 0;
121	0	}
122	0	if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
123	0	if (group->meth->field_type == NID_X9_62_prime_field)
124	0	return ec_GFp_simple_set_compressed_coordinates(group, point, x,
125	0	y_bit, ctx);
126	0	else
127	0	return ec_GF2m_simple_set_compressed_coordinates(group, point, x,
128	0	y_bit, ctx);
129	0	}
130	0	return group->meth->point_set_compressed_coordinates(group, point, x,
131	0	y_bit, ctx);
132	0	}
133		#endif
134
135		size_t EC_POINT_point2oct(const EC_GROUP group, const EC_POINT point,
136		point_conversion_form_t form, unsigned char *buf,
137		size_t len, BN_CTX *ctx)
138	0	{
139	0	if (group->meth->point2oct == 0
140	0	&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
141	0	ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
142	0	return 0;
143	0	}
144	0	if (group->meth != point->meth) {
145	0	ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS);
146	0	return 0;
147	0	}
148	0	if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
149	0	if (group->meth->field_type == NID_X9_62_prime_field)
150	0	return ec_GFp_simple_point2oct(group, point, form, buf, len, ctx);
151	0	else
152		#ifdef OPENSSL_NO_EC2M
153		{
154		ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_GF2M_NOT_SUPPORTED);
155		return 0;
156		}
157		#else
158	0	return ec_GF2m_simple_point2oct(group, point,
159	0	form, buf, len, ctx);
160	0	#endif
161	0	}
162
163	0	return group->meth->point2oct(group, point, form, buf, len, ctx);
164	0	}
165
166		int EC_POINT_oct2point(const EC_GROUP group, EC_POINT point,
167		const unsigned char buf, size_t len, BN_CTX ctx)
168	0	{
169	0	if (group->meth->oct2point == 0
170	0	&& !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
171	0	ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
172	0	return 0;
173	0	}
174	0	if (group->meth != point->meth) {
175	0	ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS);
176	0	return 0;
177	0	}
178	0	if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
179	0	if (group->meth->field_type == NID_X9_62_prime_field)
180	0	return ec_GFp_simple_oct2point(group, point, buf, len, ctx);
181	0	else
182		#ifdef OPENSSL_NO_EC2M
183		{
184		ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_GF2M_NOT_SUPPORTED);
185		return 0;
186		}
187		#else
188	0	return ec_GF2m_simple_oct2point(group, point, buf, len, ctx);
189	0	#endif
190	0	}
191	0	return group->meth->oct2point(group, point, buf, len, ctx);
192	0	}

Coverage Report

Created: 2022-11-30 06:20