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ec_oct.c

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1/* $OpenBSD: ec_oct.c,v 1.5 2017/01/29 17:49:23 beck Exp $ */-
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/opensslconf.h>-
67-
68#include <openssl/err.h>-
69#include <openssl/opensslv.h>-
70-
71#include "ec_lcl.h"-
72-
73int -
74EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP * group, EC_POINT * point,-
75 const BIGNUM * x, int y_bit, BN_CTX * ctx)-
76{-
77 if (group->meth->point_set_compressed_coordinates == 0
group->meth->p...ordinates == 0Description
TRUEevaluated 7 times by 1 test
Evaluated by:
  • ectest
FALSEnever evaluated
0-7
78 && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
!(group->meth->flags & 0x1)Description
TRUEnever evaluated
FALSEevaluated 7 times by 1 test
Evaluated by:
  • ectest
0-7
79 ECerror(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);-
80 return 0;
never executed: return 0;
0
81 }-
82 if (group->meth != point->meth) {
group->meth != point->methDescription
TRUEnever evaluated
FALSEevaluated 7 times by 1 test
Evaluated by:
  • ectest
0-7
83 ECerror(EC_R_INCOMPATIBLE_OBJECTS);-
84 return 0;
never executed: return 0;
0
85 }-
86 if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
group->meth->flags & 0x1Description
TRUEevaluated 7 times by 1 test
Evaluated by:
  • ectest
FALSEnever evaluated
0-7
87 if (group->meth->field_type == NID_X9_62_prime_field)
group->meth->field_type == 406Description
TRUEevaluated 7 times by 1 test
Evaluated by:
  • ectest
FALSEnever evaluated
0-7
88 return ec_GFp_simple_set_compressed_coordinates(
executed 7 times by 1 test: return ec_GFp_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
Executed by:
  • ectest
7
89 group, point, x, y_bit, ctx);
executed 7 times by 1 test: return ec_GFp_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
Executed by:
  • ectest
7
90 else-
91#ifdef OPENSSL_NO_EC2M-
92 {-
93 ECerror(EC_R_GF2M_NOT_SUPPORTED);-
94 return 0;-
95 }-
96#else-
97 return ec_GF2m_simple_set_compressed_coordinates(
never executed: return ec_GF2m_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
0
98 group, point, x, y_bit, ctx);
never executed: return ec_GF2m_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
0
99#endif-
100 }-
101 return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx);
never executed: return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx);
0
102}-
103-
104#ifndef OPENSSL_NO_EC2M-
105int -
106EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP * group, EC_POINT * point,-
107 const BIGNUM * x, int y_bit, BN_CTX * ctx)-
108{-
109 if (group->meth->point_set_compressed_coordinates == 0
group->meth->p...ordinates == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
110 && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
!(group->meth->flags & 0x1)Description
TRUEnever evaluated
FALSEnever evaluated
0
111 ECerror(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);-
112 return 0;
never executed: return 0;
0
113 }-
114 if (group->meth != point->meth) {
group->meth != point->methDescription
TRUEnever evaluated
FALSEnever evaluated
0
115 ECerror(EC_R_INCOMPATIBLE_OBJECTS);-
116 return 0;
never executed: return 0;
0
117 }-
118 if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
group->meth->flags & 0x1Description
TRUEnever evaluated
FALSEnever evaluated
0
119 if (group->meth->field_type == NID_X9_62_prime_field)
group->meth->field_type == 406Description
TRUEnever evaluated
FALSEnever evaluated
0
120 return ec_GFp_simple_set_compressed_coordinates(
never executed: return ec_GFp_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
0
121 group, point, x, y_bit, ctx);
never executed: return ec_GFp_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
0
122 else-
123 return ec_GF2m_simple_set_compressed_coordinates(
never executed: return ec_GF2m_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
0
124 group, point, x, y_bit, ctx);
never executed: return ec_GF2m_simple_set_compressed_coordinates( group, point, x, y_bit, ctx);
0
125 }-
126 return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx);
never executed: return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx);
0
127}-
128#endif-
129-
130size_t -
131EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point,-
132 point_conversion_form_t form,-
133 unsigned char *buf, size_t len, BN_CTX *ctx)-
134{-
135 if (group->meth->point2oct == 0
group->meth->point2oct == 0Description
TRUEevaluated 96 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
FALSEnever evaluated
0-96
136 && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
!(group->meth->flags & 0x1)Description
TRUEnever evaluated
FALSEevaluated 96 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
0-96
137 ECerror(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);-
138 return 0;
never executed: return 0;
0
139 }-
140 if (group->meth != point->meth) {
group->meth != point->methDescription
TRUEnever evaluated
FALSEevaluated 96 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
0-96
141 ECerror(EC_R_INCOMPATIBLE_OBJECTS);-
142 return 0;
never executed: return 0;
0
143 }-
144 if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
group->meth->flags & 0x1Description
TRUEevaluated 96 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
FALSEnever evaluated
0-96
145 if (group->meth->field_type == NID_X9_62_prime_field)
group->meth->field_type == 406Description
TRUEevaluated 95 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
FALSEevaluated 1 time by 1 test
Evaluated by:
  • ectest
1-95
146 return ec_GFp_simple_point2oct(group, point,
executed 95 times by 2 tests: return ec_GFp_simple_point2oct(group, point, form, buf, len, ctx);
Executed by:
  • ectest
  • ssltest
95
147 form, buf, len, ctx);
executed 95 times by 2 tests: return ec_GFp_simple_point2oct(group, point, form, buf, len, ctx);
Executed by:
  • ectest
  • ssltest
95
148 else-
149#ifdef OPENSSL_NO_EC2M-
150 {-
151 ECerror(EC_R_GF2M_NOT_SUPPORTED);-
152 return 0;-
153 }-
154#else-
155 return ec_GF2m_simple_point2oct(group, point,
executed 1 time by 1 test: return ec_GF2m_simple_point2oct(group, point, form, buf, len, ctx);
Executed by:
  • ectest
1
156 form, buf, len, ctx);
executed 1 time by 1 test: return ec_GF2m_simple_point2oct(group, point, form, buf, len, ctx);
Executed by:
  • ectest
1
157#endif-
158 }-
159 return group->meth->point2oct(group, point, form, buf, len, ctx);
never executed: return group->meth->point2oct(group, point, form, buf, len, ctx);
0
160}-
161-
162-
163int -
164EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,-
165 const unsigned char *buf, size_t len, BN_CTX *ctx)-
166{-
167 if (group->meth->oct2point == 0 &&
group->meth->oct2point == 0Description
TRUEevaluated 52 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
FALSEnever evaluated
0-52
168 !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
!(group->meth->flags & 0x1)Description
TRUEnever evaluated
FALSEevaluated 52 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
0-52
169 ECerror(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);-
170 return 0;
never executed: return 0;
0
171 }-
172 if (group->meth != point->meth) {
group->meth != point->methDescription
TRUEnever evaluated
FALSEevaluated 52 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
0-52
173 ECerror(EC_R_INCOMPATIBLE_OBJECTS);-
174 return 0;
never executed: return 0;
0
175 }-
176 if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
group->meth->flags & 0x1Description
TRUEevaluated 52 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
FALSEnever evaluated
0-52
177 if (group->meth->field_type == NID_X9_62_prime_field)
group->meth->field_type == 406Description
TRUEevaluated 50 times by 2 tests
Evaluated by:
  • ectest
  • ssltest
FALSEevaluated 2 times by 1 test
Evaluated by:
  • ectest
2-50
178 return ec_GFp_simple_oct2point(group, point,
executed 50 times by 2 tests: return ec_GFp_simple_oct2point(group, point, buf, len, ctx);
Executed by:
  • ectest
  • ssltest
50
179 buf, len, ctx);
executed 50 times by 2 tests: return ec_GFp_simple_oct2point(group, point, buf, len, ctx);
Executed by:
  • ectest
  • ssltest
50
180 else-
181#ifdef OPENSSL_NO_EC2M-
182 {-
183 ECerror(EC_R_GF2M_NOT_SUPPORTED);-
184 return 0;-
185 }-
186#else-
187 return ec_GF2m_simple_oct2point(group, point,
executed 2 times by 1 test: return ec_GF2m_simple_oct2point(group, point, buf, len, ctx);
Executed by:
  • ectest
2
188 buf, len, ctx);
executed 2 times by 1 test: return ec_GF2m_simple_oct2point(group, point, buf, len, ctx);
Executed by:
  • ectest
2
189#endif-
190 }-
191 return group->meth->oct2point(group, point, buf, len, ctx);
never executed: return group->meth->oct2point(group, point, buf, len, ctx);
0
192}-
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