source: EcnlProtoTool/trunk/openssl-1.1.0e/crypto/ec/eck_prn.c@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc
File size: 7.8 KB
RevLine 
[331]1/*
2 * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
12 * Portions originally developed by SUN MICROSYSTEMS, INC., and
13 * contributed to the OpenSSL project.
14 */
15
16#include <stdio.h>
17#include "internal/cryptlib.h"
18#include <openssl/evp.h>
19#include <openssl/ec.h>
20#include <openssl/bn.h>
21
22#ifndef OPENSSL_NO_STDIO
23int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
24{
25 BIO *b;
26 int ret;
27
28 if ((b = BIO_new(BIO_s_file())) == NULL) {
29 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP, ERR_R_BUF_LIB);
30 return (0);
31 }
32 BIO_set_fp(b, fp, BIO_NOCLOSE);
33 ret = ECPKParameters_print(b, x, off);
34 BIO_free(b);
35 return (ret);
36}
37
38int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
39{
40 BIO *b;
41 int ret;
42
43 if ((b = BIO_new(BIO_s_file())) == NULL) {
44 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
45 return (0);
46 }
47 BIO_set_fp(b, fp, BIO_NOCLOSE);
48 ret = EC_KEY_print(b, x, off);
49 BIO_free(b);
50 return (ret);
51}
52
53int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
54{
55 BIO *b;
56 int ret;
57
58 if ((b = BIO_new(BIO_s_file())) == NULL) {
59 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
60 return (0);
61 }
62 BIO_set_fp(b, fp, BIO_NOCLOSE);
63 ret = ECParameters_print(b, x);
64 BIO_free(b);
65 return (ret);
66}
67#endif
68
69static int print_bin(BIO *fp, const char *str, const unsigned char *num,
70 size_t len, int off);
71
72int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
73{
74 int ret = 0, reason = ERR_R_BIO_LIB;
75 BN_CTX *ctx = NULL;
76 const EC_POINT *point = NULL;
77 BIGNUM *p = NULL, *a = NULL, *b = NULL, *gen = NULL;
78 const BIGNUM *order = NULL, *cofactor = NULL;
79 const unsigned char *seed;
80 size_t seed_len = 0;
81
82 static const char *gen_compressed = "Generator (compressed):";
83 static const char *gen_uncompressed = "Generator (uncompressed):";
84 static const char *gen_hybrid = "Generator (hybrid):";
85
86 if (!x) {
87 reason = ERR_R_PASSED_NULL_PARAMETER;
88 goto err;
89 }
90
91 ctx = BN_CTX_new();
92 if (ctx == NULL) {
93 reason = ERR_R_MALLOC_FAILURE;
94 goto err;
95 }
96
97 if (EC_GROUP_get_asn1_flag(x)) {
98 /* the curve parameter are given by an asn1 OID */
99 int nid;
100 const char *nname;
101
102 if (!BIO_indent(bp, off, 128))
103 goto err;
104
105 nid = EC_GROUP_get_curve_name(x);
106 if (nid == 0)
107 goto err;
108 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
109 goto err;
110 if (BIO_printf(bp, "\n") <= 0)
111 goto err;
112 nname = EC_curve_nid2nist(nid);
113 if (nname) {
114 if (!BIO_indent(bp, off, 128))
115 goto err;
116 if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 0)
117 goto err;
118 }
119 } else {
120 /* explicit parameters */
121 int is_char_two = 0;
122 point_conversion_form_t form;
123 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
124
125 if (tmp_nid == NID_X9_62_characteristic_two_field)
126 is_char_two = 1;
127
128 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
129 (b = BN_new()) == NULL) {
130 reason = ERR_R_MALLOC_FAILURE;
131 goto err;
132 }
133#ifndef OPENSSL_NO_EC2M
134 if (is_char_two) {
135 if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx)) {
136 reason = ERR_R_EC_LIB;
137 goto err;
138 }
139 } else /* prime field */
140#endif
141 {
142 if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx)) {
143 reason = ERR_R_EC_LIB;
144 goto err;
145 }
146 }
147
148 if ((point = EC_GROUP_get0_generator(x)) == NULL) {
149 reason = ERR_R_EC_LIB;
150 goto err;
151 }
152 order = EC_GROUP_get0_order(x);
153 cofactor = EC_GROUP_get0_cofactor(x);
154 if (order == NULL) {
155 reason = ERR_R_EC_LIB;
156 goto err;
157 }
158
159 form = EC_GROUP_get_point_conversion_form(x);
160
161 if ((gen = EC_POINT_point2bn(x, point, form, NULL, ctx)) == NULL) {
162 reason = ERR_R_EC_LIB;
163 goto err;
164 }
165
166 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
167 seed_len = EC_GROUP_get_seed_len(x);
168
169 if (!BIO_indent(bp, off, 128))
170 goto err;
171
172 /* print the 'short name' of the field type */
173 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
174 <= 0)
175 goto err;
176
177 if (is_char_two) {
178 /* print the 'short name' of the base type OID */
179 int basis_type = EC_GROUP_get_basis_type(x);
180 if (basis_type == 0)
181 goto err;
182
183 if (!BIO_indent(bp, off, 128))
184 goto err;
185
186 if (BIO_printf(bp, "Basis Type: %s\n",
187 OBJ_nid2sn(basis_type)) <= 0)
188 goto err;
189
190 /* print the polynomial */
191 if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p, NULL,
192 off))
193 goto err;
194 } else {
195 if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, NULL, off))
196 goto err;
197 }
198 if ((a != NULL) && !ASN1_bn_print(bp, "A: ", a, NULL, off))
199 goto err;
200 if ((b != NULL) && !ASN1_bn_print(bp, "B: ", b, NULL, off))
201 goto err;
202 if (form == POINT_CONVERSION_COMPRESSED) {
203 if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed, gen,
204 NULL, off))
205 goto err;
206 } else if (form == POINT_CONVERSION_UNCOMPRESSED) {
207 if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed, gen,
208 NULL, off))
209 goto err;
210 } else { /* form == POINT_CONVERSION_HYBRID */
211
212 if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen,
213 NULL, off))
214 goto err;
215 }
216 if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order,
217 NULL, off))
218 goto err;
219 if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor,
220 NULL, off))
221 goto err;
222 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
223 goto err;
224 }
225 ret = 1;
226 err:
227 if (!ret)
228 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
229 BN_free(p);
230 BN_free(a);
231 BN_free(b);
232 BN_free(gen);
233 BN_CTX_free(ctx);
234 return (ret);
235}
236
237static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
238 size_t len, int off)
239{
240 size_t i;
241 char str[128];
242
243 if (buf == NULL)
244 return 1;
245 if (off > 0) {
246 if (off > 128)
247 off = 128;
248 memset(str, ' ', off);
249 if (BIO_write(fp, str, off) <= 0)
250 return 0;
251 } else {
252 off = 0;
253 }
254
255 if (BIO_printf(fp, "%s", name) <= 0)
256 return 0;
257
258 for (i = 0; i < len; i++) {
259 if ((i % 15) == 0) {
260 str[0] = '\n';
261 memset(&(str[1]), ' ', off + 4);
262 if (BIO_write(fp, str, off + 1 + 4) <= 0)
263 return 0;
264 }
265 if (BIO_printf(fp, "%02x%s", buf[i], ((i + 1) == len) ? "" : ":") <=
266 0)
267 return 0;
268 }
269 if (BIO_write(fp, "\n", 1) <= 0)
270 return 0;
271
272 return 1;
273}
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