diff options
Diffstat (limited to 'src/lib/libcrypto/ec/ec_oct.c')
-rw-r--r-- | src/lib/libcrypto/ec/ec_oct.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/lib/libcrypto/ec/ec_oct.c b/src/lib/libcrypto/ec/ec_oct.c new file mode 100644 index 0000000000..fd9db0798d --- /dev/null +++ b/src/lib/libcrypto/ec/ec_oct.c | |||
@@ -0,0 +1,199 @@ | |||
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, EC_POINT *point, | ||
72 | const BIGNUM *x, int y_bit, BN_CTX *ctx) | ||
73 | { | ||
74 | if (group->meth->point_set_compressed_coordinates == 0 | ||
75 | && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) | ||
76 | { | ||
77 | ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | ||
78 | return 0; | ||
79 | } | ||
80 | if (group->meth != point->meth) | ||
81 | { | ||
82 | ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS); | ||
83 | return 0; | ||
84 | } | ||
85 | if(group->meth->flags & EC_FLAGS_DEFAULT_OCT) | ||
86 | { | ||
87 | if (group->meth->field_type == NID_X9_62_prime_field) | ||
88 | return ec_GFp_simple_set_compressed_coordinates( | ||
89 | group, point, x, y_bit, ctx); | ||
90 | else | ||
91 | #ifdef OPENSSL_NO_EC2M | ||
92 | { | ||
93 | ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, EC_R_GF2M_NOT_SUPPORTED); | ||
94 | return 0; | ||
95 | } | ||
96 | #else | ||
97 | return ec_GF2m_simple_set_compressed_coordinates( | ||
98 | group, point, x, y_bit, ctx); | ||
99 | #endif | ||
100 | } | ||
101 | return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx); | ||
102 | } | ||
103 | |||
104 | #ifndef OPENSSL_NO_EC2M | ||
105 | int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *point, | ||
106 | const BIGNUM *x, int y_bit, BN_CTX *ctx) | ||
107 | { | ||
108 | if (group->meth->point_set_compressed_coordinates == 0 | ||
109 | && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) | ||
110 | { | ||
111 | ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | ||
112 | return 0; | ||
113 | } | ||
114 | if (group->meth != point->meth) | ||
115 | { | ||
116 | ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, EC_R_INCOMPATIBLE_OBJECTS); | ||
117 | return 0; | ||
118 | } | ||
119 | if(group->meth->flags & EC_FLAGS_DEFAULT_OCT) | ||
120 | { | ||
121 | if (group->meth->field_type == NID_X9_62_prime_field) | ||
122 | return ec_GFp_simple_set_compressed_coordinates( | ||
123 | group, point, x, y_bit, ctx); | ||
124 | else | ||
125 | return ec_GF2m_simple_set_compressed_coordinates( | ||
126 | group, point, x, y_bit, ctx); | ||
127 | } | ||
128 | return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx); | ||
129 | } | ||
130 | #endif | ||
131 | |||
132 | size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, point_conversion_form_t form, | ||
133 | unsigned char *buf, size_t len, BN_CTX *ctx) | ||
134 | { | ||
135 | if (group->meth->point2oct == 0 | ||
136 | && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) | ||
137 | { | ||
138 | ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | ||
139 | return 0; | ||
140 | } | ||
141 | if (group->meth != point->meth) | ||
142 | { | ||
143 | ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS); | ||
144 | return 0; | ||
145 | } | ||
146 | if(group->meth->flags & EC_FLAGS_DEFAULT_OCT) | ||
147 | { | ||
148 | if (group->meth->field_type == NID_X9_62_prime_field) | ||
149 | return ec_GFp_simple_point2oct(group, point, | ||
150 | form, buf, len, ctx); | ||
151 | 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 | return ec_GF2m_simple_point2oct(group, point, | ||
159 | form, buf, len, ctx); | ||
160 | #endif | ||
161 | } | ||
162 | |||
163 | return group->meth->point2oct(group, point, form, buf, len, ctx); | ||
164 | } | ||
165 | |||
166 | |||
167 | int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point, | ||
168 | const unsigned char *buf, size_t len, BN_CTX *ctx) | ||
169 | { | ||
170 | if (group->meth->oct2point == 0 | ||
171 | && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) | ||
172 | { | ||
173 | ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | ||
174 | return 0; | ||
175 | } | ||
176 | if (group->meth != point->meth) | ||
177 | { | ||
178 | ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS); | ||
179 | return 0; | ||
180 | } | ||
181 | if(group->meth->flags & EC_FLAGS_DEFAULT_OCT) | ||
182 | { | ||
183 | if (group->meth->field_type == NID_X9_62_prime_field) | ||
184 | return ec_GFp_simple_oct2point(group, point, | ||
185 | buf, len, ctx); | ||
186 | else | ||
187 | #ifdef OPENSSL_NO_EC2M | ||
188 | { | ||
189 | ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_GF2M_NOT_SUPPORTED); | ||
190 | return 0; | ||
191 | } | ||
192 | #else | ||
193 | return ec_GF2m_simple_oct2point(group, point, | ||
194 | buf, len, ctx); | ||
195 | #endif | ||
196 | } | ||
197 | return group->meth->oct2point(group, point, buf, len, ctx); | ||
198 | } | ||
199 | |||