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| 1 /* crypto/ec/eck_prn.c */ | |
| 2 /* | |
| 3 * Written by Nils Larsch for the OpenSSL project. | |
| 4 */ | |
| 5 /* ==================================================================== | |
| 6 * Copyright (c) 1998-2005 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 * Portions originally developed by SUN MICROSYSTEMS, INC., and | |
| 61 * contributed to the OpenSSL project. | |
| 62 */ | |
| 63 | |
| 64 #include <stdio.h> | |
| 65 #include "cryptlib.h" | |
| 66 #include <openssl/evp.h> | |
| 67 #include <openssl/ec.h> | |
| 68 #include <openssl/bn.h> | |
| 69 | |
| 70 #ifndef OPENSSL_NO_FP_API | |
| 71 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off) | |
| 72 { | |
| 73 BIO *b; | |
| 74 int ret; | |
| 75 | |
| 76 if ((b=BIO_new(BIO_s_file())) == NULL) | |
| 77 { | |
| 78 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB); | |
| 79 return(0); | |
| 80 } | |
| 81 BIO_set_fp(b, fp, BIO_NOCLOSE); | |
| 82 ret = ECPKParameters_print(b, x, off); | |
| 83 BIO_free(b); | |
| 84 return(ret); | |
| 85 } | |
| 86 | |
| 87 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off) | |
| 88 { | |
| 89 BIO *b; | |
| 90 int ret; | |
| 91 | |
| 92 if ((b=BIO_new(BIO_s_file())) == NULL) | |
| 93 { | |
| 94 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB); | |
| 95 return(0); | |
| 96 } | |
| 97 BIO_set_fp(b, fp, BIO_NOCLOSE); | |
| 98 ret = EC_KEY_print(b, x, off); | |
| 99 BIO_free(b); | |
| 100 return(ret); | |
| 101 } | |
| 102 | |
| 103 int ECParameters_print_fp(FILE *fp, const EC_KEY *x) | |
| 104 { | |
| 105 BIO *b; | |
| 106 int ret; | |
| 107 | |
| 108 if ((b=BIO_new(BIO_s_file())) == NULL) | |
| 109 { | |
| 110 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB); | |
| 111 return(0); | |
| 112 } | |
| 113 BIO_set_fp(b, fp, BIO_NOCLOSE); | |
| 114 ret = ECParameters_print(b, x); | |
| 115 BIO_free(b); | |
| 116 return(ret); | |
| 117 } | |
| 118 #endif | |
| 119 | |
| 120 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off) | |
| 121 { | |
| 122 EVP_PKEY *pk; | |
| 123 int ret; | |
| 124 pk = EVP_PKEY_new(); | |
| 125 if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x)) | |
| 126 return 0; | |
| 127 ret = EVP_PKEY_print_private(bp, pk, off, NULL); | |
| 128 EVP_PKEY_free(pk); | |
| 129 return ret; | |
| 130 } | |
| 131 | |
| 132 int ECParameters_print(BIO *bp, const EC_KEY *x) | |
| 133 { | |
| 134 EVP_PKEY *pk; | |
| 135 int ret; | |
| 136 pk = EVP_PKEY_new(); | |
| 137 if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x)) | |
| 138 return 0; | |
| 139 ret = EVP_PKEY_print_params(bp, pk, 4, NULL); | |
| 140 EVP_PKEY_free(pk); | |
| 141 return ret; | |
| 142 } | |
| 143 | |
| 144 static int print_bin(BIO *fp, const char *str, const unsigned char *num, | |
| 145 size_t len, int off); | |
| 146 | |
| 147 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off) | |
| 148 { | |
| 149 unsigned char *buffer=NULL; | |
| 150 size_t buf_len=0, i; | |
| 151 int ret=0, reason=ERR_R_BIO_LIB; | |
| 152 BN_CTX *ctx=NULL; | |
| 153 const EC_POINT *point=NULL; | |
| 154 BIGNUM *p=NULL, *a=NULL, *b=NULL, *gen=NULL, | |
| 155 *order=NULL, *cofactor=NULL; | |
| 156 const unsigned char *seed; | |
| 157 size_t seed_len=0; | |
| 158 | |
| 159 static const char *gen_compressed = "Generator (compressed):"; | |
| 160 static const char *gen_uncompressed = "Generator (uncompressed):"; | |
| 161 static const char *gen_hybrid = "Generator (hybrid):"; | |
| 162 | |
| 163 if (!x) | |
| 164 { | |
| 165 reason = ERR_R_PASSED_NULL_PARAMETER; | |
| 166 goto err; | |
| 167 } | |
| 168 | |
| 169 ctx = BN_CTX_new(); | |
| 170 if (ctx == NULL) | |
| 171 { | |
| 172 reason = ERR_R_MALLOC_FAILURE; | |
| 173 goto err; | |
| 174 } | |
| 175 | |
| 176 if (EC_GROUP_get_asn1_flag(x)) | |
| 177 { | |
| 178 /* the curve parameter are given by an asn1 OID */ | |
| 179 int nid; | |
| 180 | |
| 181 if (!BIO_indent(bp, off, 128)) | |
| 182 goto err; | |
| 183 | |
| 184 nid = EC_GROUP_get_curve_name(x); | |
| 185 if (nid == 0) | |
| 186 goto err; | |
| 187 | |
| 188 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0) | |
| 189 goto err; | |
| 190 if (BIO_printf(bp, "\n") <= 0) | |
| 191 goto err; | |
| 192 } | |
| 193 else | |
| 194 { | |
| 195 /* explicit parameters */ | |
| 196 int is_char_two = 0; | |
| 197 point_conversion_form_t form; | |
| 198 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x)); | |
| 199 | |
| 200 if (tmp_nid == NID_X9_62_characteristic_two_field) | |
| 201 is_char_two = 1; | |
| 202 | |
| 203 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL || | |
| 204 (b = BN_new()) == NULL || (order = BN_new()) == NULL || | |
| 205 (cofactor = BN_new()) == NULL) | |
| 206 { | |
| 207 reason = ERR_R_MALLOC_FAILURE; | |
| 208 goto err; | |
| 209 } | |
| 210 #ifndef OPENSSL_NO_EC2M | |
| 211 if (is_char_two) | |
| 212 { | |
| 213 if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx)) | |
| 214 { | |
| 215 reason = ERR_R_EC_LIB; | |
| 216 goto err; | |
| 217 } | |
| 218 } | |
| 219 else /* prime field */ | |
| 220 #endif | |
| 221 { | |
| 222 if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx)) | |
| 223 { | |
| 224 reason = ERR_R_EC_LIB; | |
| 225 goto err; | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 if ((point = EC_GROUP_get0_generator(x)) == NULL) | |
| 230 { | |
| 231 reason = ERR_R_EC_LIB; | |
| 232 goto err; | |
| 233 } | |
| 234 if (!EC_GROUP_get_order(x, order, NULL) || | |
| 235 !EC_GROUP_get_cofactor(x, cofactor, NULL)) | |
| 236 { | |
| 237 reason = ERR_R_EC_LIB; | |
| 238 goto err; | |
| 239 } | |
| 240 | |
| 241 form = EC_GROUP_get_point_conversion_form(x); | |
| 242 | |
| 243 if ((gen = EC_POINT_point2bn(x, point, | |
| 244 form, NULL, ctx)) == NULL) | |
| 245 { | |
| 246 reason = ERR_R_EC_LIB; | |
| 247 goto err; | |
| 248 } | |
| 249 | |
| 250 buf_len = (size_t)BN_num_bytes(p); | |
| 251 if (buf_len < (i = (size_t)BN_num_bytes(a))) | |
| 252 buf_len = i; | |
| 253 if (buf_len < (i = (size_t)BN_num_bytes(b))) | |
| 254 buf_len = i; | |
| 255 if (buf_len < (i = (size_t)BN_num_bytes(gen))) | |
| 256 buf_len = i; | |
| 257 if (buf_len < (i = (size_t)BN_num_bytes(order))) | |
| 258 buf_len = i; | |
| 259 if (buf_len < (i = (size_t)BN_num_bytes(cofactor))) | |
| 260 buf_len = i; | |
| 261 | |
| 262 if ((seed = EC_GROUP_get0_seed(x)) != NULL) | |
| 263 seed_len = EC_GROUP_get_seed_len(x); | |
| 264 | |
| 265 buf_len += 10; | |
| 266 if ((buffer = OPENSSL_malloc(buf_len)) == NULL) | |
| 267 { | |
| 268 reason = ERR_R_MALLOC_FAILURE; | |
| 269 goto err; | |
| 270 } | |
| 271 | |
| 272 if (!BIO_indent(bp, off, 128)) | |
| 273 goto err; | |
| 274 | |
| 275 /* print the 'short name' of the field type */ | |
| 276 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid)) | |
| 277 <= 0) | |
| 278 goto err; | |
| 279 | |
| 280 if (is_char_two) | |
| 281 { | |
| 282 /* print the 'short name' of the base type OID */ | |
| 283 int basis_type = EC_GROUP_get_basis_type(x); | |
| 284 if (basis_type == 0) | |
| 285 goto err; | |
| 286 | |
| 287 if (!BIO_indent(bp, off, 128)) | |
| 288 goto err; | |
| 289 | |
| 290 if (BIO_printf(bp, "Basis Type: %s\n", | |
| 291 OBJ_nid2sn(basis_type)) <= 0) | |
| 292 goto err; | |
| 293 | |
| 294 /* print the polynomial */ | |
| 295 if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p,
buffer, | |
| 296 off)) | |
| 297 goto err; | |
| 298 } | |
| 299 else | |
| 300 { | |
| 301 if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, buffe
r,off)) | |
| 302 goto err; | |
| 303 } | |
| 304 if ((a != NULL) && !ASN1_bn_print(bp, "A: ", a, buffer, off)) | |
| 305 goto err; | |
| 306 if ((b != NULL) && !ASN1_bn_print(bp, "B: ", b, buffer, off)) | |
| 307 goto err; | |
| 308 if (form == POINT_CONVERSION_COMPRESSED) | |
| 309 { | |
| 310 if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed,
gen, | |
| 311 buffer, off)) | |
| 312 goto err; | |
| 313 } | |
| 314 else if (form == POINT_CONVERSION_UNCOMPRESSED) | |
| 315 { | |
| 316 if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed
, gen, | |
| 317 buffer, off)) | |
| 318 goto err; | |
| 319 } | |
| 320 else /* form == POINT_CONVERSION_HYBRID */ | |
| 321 { | |
| 322 if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen, | |
| 323 buffer, off)) | |
| 324 goto err; | |
| 325 } | |
| 326 if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order, | |
| 327 buffer, off)) goto err; | |
| 328 if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofac
tor, | |
| 329 buffer, off)) goto err; | |
| 330 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off)) | |
| 331 goto err; | |
| 332 } | |
| 333 ret=1; | |
| 334 err: | |
| 335 if (!ret) | |
| 336 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason); | |
| 337 if (p) | |
| 338 BN_free(p); | |
| 339 if (a) | |
| 340 BN_free(a); | |
| 341 if (b) | |
| 342 BN_free(b); | |
| 343 if (gen) | |
| 344 BN_free(gen); | |
| 345 if (order) | |
| 346 BN_free(order); | |
| 347 if (cofactor) | |
| 348 BN_free(cofactor); | |
| 349 if (ctx) | |
| 350 BN_CTX_free(ctx); | |
| 351 if (buffer != NULL) | |
| 352 OPENSSL_free(buffer); | |
| 353 return(ret); | |
| 354 } | |
| 355 | |
| 356 static int print_bin(BIO *fp, const char *name, const unsigned char *buf, | |
| 357 size_t len, int off) | |
| 358 { | |
| 359 size_t i; | |
| 360 char str[128]; | |
| 361 | |
| 362 if (buf == NULL) | |
| 363 return 1; | |
| 364 if (off) | |
| 365 { | |
| 366 if (off > 128) | |
| 367 off=128; | |
| 368 memset(str,' ',off); | |
| 369 if (BIO_write(fp, str, off) <= 0) | |
| 370 return 0; | |
| 371 } | |
| 372 | |
| 373 if (BIO_printf(fp,"%s", name) <= 0) | |
| 374 return 0; | |
| 375 | |
| 376 for (i=0; i<len; i++) | |
| 377 { | |
| 378 if ((i%15) == 0) | |
| 379 { | |
| 380 str[0]='\n'; | |
| 381 memset(&(str[1]),' ',off+4); | |
| 382 if (BIO_write(fp, str, off+1+4) <= 0) | |
| 383 return 0; | |
| 384 } | |
| 385 if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0) | |
| 386 return 0; | |
| 387 } | |
| 388 if (BIO_write(fp,"\n",1) <= 0) | |
| 389 return 0; | |
| 390 | |
| 391 return 1; | |
| 392 } | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master