Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* apps/ec.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 | #include <openssl/opensslconf.h> |
| 60 | #ifndef OPENSSL_NO_EC |
| 61 | #include <stdio.h> |
| 62 | #include <stdlib.h> |
| 63 | #include <string.h> |
| 64 | #include "apps.h" |
| 65 | #include <openssl/bio.h> |
| 66 | #include <openssl/err.h> |
| 67 | #include <openssl/evp.h> |
| 68 | #include <openssl/pem.h> |
| 69 | |
| 70 | #undef PROG |
| 71 | #define PROG ec_main |
| 72 | |
| 73 | /* -inform arg - input format - default PEM (one of DER, NET or PEM) |
| 74 | * -outform arg - output format - default PEM |
| 75 | * -in arg - input file - default stdin |
| 76 | * -out arg - output file - default stdout |
| 77 | * -des - encrypt output if PEM format with DES in cbc mode |
| 78 | * -text - print a text version |
| 79 | * -param_out - print the elliptic curve parameters |
| 80 | * -conv_form arg - specifies the point encoding form |
| 81 | * -param_enc arg - specifies the parameter encoding |
| 82 | */ |
| 83 | |
| 84 | int MAIN(int, char **); |
| 85 | |
| 86 | int MAIN(int argc, char **argv) |
| 87 | { |
| 88 | int ret = 1; |
| 89 | EC_KEY *eckey = NULL; |
| 90 | const EC_GROUP *group; |
| 91 | int i, badops = 0; |
| 92 | const EVP_CIPHER *enc = NULL; |
| 93 | BIO *in = NULL, *out = NULL; |
| 94 | int informat, outformat, text=0, noout=0; |
| 95 | int pubin = 0, pubout = 0, param_out = 0; |
| 96 | char *infile, *outfile, *prog, *engine; |
| 97 | char *passargin = NULL, *passargout = NULL; |
| 98 | char *passin = NULL, *passout = NULL; |
| 99 | point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; |
| 100 | int new_form = 0; |
| 101 | int asn1_flag = OPENSSL_EC_NAMED_CURVE; |
| 102 | int new_asn1_flag = 0; |
| 103 | |
| 104 | apps_startup(); |
| 105 | |
| 106 | if (bio_err == NULL) |
| 107 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
| 108 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT); |
| 109 | |
| 110 | if (!load_config(bio_err, NULL)) |
| 111 | goto end; |
| 112 | |
| 113 | engine = NULL; |
| 114 | infile = NULL; |
| 115 | outfile = NULL; |
| 116 | informat = FORMAT_PEM; |
| 117 | outformat = FORMAT_PEM; |
| 118 | |
| 119 | prog = argv[0]; |
| 120 | argc--; |
| 121 | argv++; |
| 122 | while (argc >= 1) |
| 123 | { |
| 124 | if (strcmp(*argv,"-inform") == 0) |
| 125 | { |
| 126 | if (--argc < 1) goto bad; |
| 127 | informat=str2fmt(*(++argv)); |
| 128 | } |
| 129 | else if (strcmp(*argv,"-outform") == 0) |
| 130 | { |
| 131 | if (--argc < 1) goto bad; |
| 132 | outformat=str2fmt(*(++argv)); |
| 133 | } |
| 134 | else if (strcmp(*argv,"-in") == 0) |
| 135 | { |
| 136 | if (--argc < 1) goto bad; |
| 137 | infile= *(++argv); |
| 138 | } |
| 139 | else if (strcmp(*argv,"-out") == 0) |
| 140 | { |
| 141 | if (--argc < 1) goto bad; |
| 142 | outfile= *(++argv); |
| 143 | } |
| 144 | else if (strcmp(*argv,"-passin") == 0) |
| 145 | { |
| 146 | if (--argc < 1) goto bad; |
| 147 | passargin= *(++argv); |
| 148 | } |
| 149 | else if (strcmp(*argv,"-passout") == 0) |
| 150 | { |
| 151 | if (--argc < 1) goto bad; |
| 152 | passargout= *(++argv); |
| 153 | } |
| 154 | else if (strcmp(*argv, "-engine") == 0) |
| 155 | { |
| 156 | if (--argc < 1) goto bad; |
| 157 | engine= *(++argv); |
| 158 | } |
| 159 | else if (strcmp(*argv, "-noout") == 0) |
| 160 | noout = 1; |
| 161 | else if (strcmp(*argv, "-text") == 0) |
| 162 | text = 1; |
| 163 | else if (strcmp(*argv, "-conv_form") == 0) |
| 164 | { |
| 165 | if (--argc < 1) |
| 166 | goto bad; |
| 167 | ++argv; |
| 168 | new_form = 1; |
| 169 | if (strcmp(*argv, "compressed") == 0) |
| 170 | form = POINT_CONVERSION_COMPRESSED; |
| 171 | else if (strcmp(*argv, "uncompressed") == 0) |
| 172 | form = POINT_CONVERSION_UNCOMPRESSED; |
| 173 | else if (strcmp(*argv, "hybrid") == 0) |
| 174 | form = POINT_CONVERSION_HYBRID; |
| 175 | else |
| 176 | goto bad; |
| 177 | } |
| 178 | else if (strcmp(*argv, "-param_enc") == 0) |
| 179 | { |
| 180 | if (--argc < 1) |
| 181 | goto bad; |
| 182 | ++argv; |
| 183 | new_asn1_flag = 1; |
| 184 | if (strcmp(*argv, "named_curve") == 0) |
| 185 | asn1_flag = OPENSSL_EC_NAMED_CURVE; |
| 186 | else if (strcmp(*argv, "explicit") == 0) |
| 187 | asn1_flag = 0; |
| 188 | else |
| 189 | goto bad; |
| 190 | } |
| 191 | else if (strcmp(*argv, "-param_out") == 0) |
| 192 | param_out = 1; |
| 193 | else if (strcmp(*argv, "-pubin") == 0) |
| 194 | pubin=1; |
| 195 | else if (strcmp(*argv, "-pubout") == 0) |
| 196 | pubout=1; |
| 197 | else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) |
| 198 | { |
| 199 | BIO_printf(bio_err, "unknown option %s\n", *argv); |
| 200 | badops=1; |
| 201 | break; |
| 202 | } |
| 203 | argc--; |
| 204 | argv++; |
| 205 | } |
| 206 | |
| 207 | if (badops) |
| 208 | { |
| 209 | bad: |
| 210 | BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); |
| 211 | BIO_printf(bio_err, "where options are\n"); |
| 212 | BIO_printf(bio_err, " -inform arg input format - " |
| 213 | "DER or PEM\n"); |
| 214 | BIO_printf(bio_err, " -outform arg output format - " |
| 215 | "DER or PEM\n"); |
| 216 | BIO_printf(bio_err, " -in arg input file\n"); |
| 217 | BIO_printf(bio_err, " -passin arg input file pass " |
| 218 | "phrase source\n"); |
| 219 | BIO_printf(bio_err, " -out arg output file\n"); |
| 220 | BIO_printf(bio_err, " -passout arg output file pass " |
| 221 | "phrase source\n"); |
| 222 | BIO_printf(bio_err, " -engine e use engine e, " |
| 223 | "possibly a hardware device.\n"); |
| 224 | BIO_printf(bio_err, " -des encrypt PEM output, " |
| 225 | "instead of 'des' every other \n" |
| 226 | " cipher " |
| 227 | "supported by OpenSSL can be used\n"); |
| 228 | BIO_printf(bio_err, " -text print the key\n"); |
| 229 | BIO_printf(bio_err, " -noout don't print key out\n"); |
| 230 | BIO_printf(bio_err, " -param_out print the elliptic " |
| 231 | "curve parameters\n"); |
| 232 | BIO_printf(bio_err, " -conv_form arg specifies the " |
| 233 | "point conversion form \n"); |
| 234 | BIO_printf(bio_err, " possible values:" |
| 235 | " compressed\n"); |
| 236 | BIO_printf(bio_err, " " |
| 237 | " uncompressed (default)\n"); |
| 238 | BIO_printf(bio_err, " " |
| 239 | " hybrid\n"); |
| 240 | BIO_printf(bio_err, " -param_enc arg specifies the way" |
| 241 | " the ec parameters are encoded\n"); |
| 242 | BIO_printf(bio_err, " in the asn1 der " |
| 243 | "encoding\n"); |
| 244 | BIO_printf(bio_err, " possible values:" |
| 245 | " named_curve (default)\n"); |
| 246 | BIO_printf(bio_err," " |
| 247 | "explicit\n"); |
| 248 | goto end; |
| 249 | } |
| 250 | |
| 251 | ERR_load_crypto_strings(); |
| 252 | |
| 253 | #ifndef OPENSSL_NO_ENGINE |
| 254 | setup_engine(bio_err, engine, 0); |
| 255 | #endif |
| 256 | |
| 257 | if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) |
| 258 | { |
| 259 | BIO_printf(bio_err, "Error getting passwords\n"); |
| 260 | goto end; |
| 261 | } |
| 262 | |
| 263 | in = BIO_new(BIO_s_file()); |
| 264 | out = BIO_new(BIO_s_file()); |
| 265 | if ((in == NULL) || (out == NULL)) |
| 266 | { |
| 267 | ERR_print_errors(bio_err); |
| 268 | goto end; |
| 269 | } |
| 270 | |
| 271 | if (infile == NULL) |
| 272 | BIO_set_fp(in, stdin, BIO_NOCLOSE); |
| 273 | else |
| 274 | { |
| 275 | if (BIO_read_filename(in, infile) <= 0) |
| 276 | { |
| 277 | perror(infile); |
| 278 | goto end; |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | BIO_printf(bio_err, "read EC key\n"); |
| 283 | if (informat == FORMAT_ASN1) |
| 284 | { |
| 285 | if (pubin) |
| 286 | eckey = d2i_EC_PUBKEY_bio(in, NULL); |
| 287 | else |
| 288 | eckey = d2i_ECPrivateKey_bio(in, NULL); |
| 289 | } |
| 290 | else if (informat == FORMAT_PEM) |
| 291 | { |
| 292 | if (pubin) |
| 293 | eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, |
| 294 | NULL); |
| 295 | else |
| 296 | eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, |
| 297 | passin); |
| 298 | } |
| 299 | else |
| 300 | { |
| 301 | BIO_printf(bio_err, "bad input format specified for key\n"); |
| 302 | goto end; |
| 303 | } |
| 304 | if (eckey == NULL) |
| 305 | { |
| 306 | BIO_printf(bio_err,"unable to load Key\n"); |
| 307 | ERR_print_errors(bio_err); |
| 308 | goto end; |
| 309 | } |
| 310 | |
| 311 | if (outfile == NULL) |
| 312 | { |
| 313 | BIO_set_fp(out, stdout, BIO_NOCLOSE); |
| 314 | #ifdef OPENSSL_SYS_VMS |
| 315 | { |
| 316 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| 317 | out = BIO_push(tmpbio, out); |
| 318 | } |
| 319 | #endif |
| 320 | } |
| 321 | else |
| 322 | { |
| 323 | if (BIO_write_filename(out, outfile) <= 0) |
| 324 | { |
| 325 | perror(outfile); |
| 326 | goto end; |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | group = EC_KEY_get0_group(eckey); |
| 331 | |
| 332 | if (new_form) |
| 333 | EC_KEY_set_conv_form(eckey, form); |
| 334 | |
| 335 | if (new_asn1_flag) |
| 336 | EC_KEY_set_asn1_flag(eckey, asn1_flag); |
| 337 | |
| 338 | if (text) |
| 339 | if (!EC_KEY_print(out, eckey, 0)) |
| 340 | { |
| 341 | perror(outfile); |
| 342 | ERR_print_errors(bio_err); |
| 343 | goto end; |
| 344 | } |
| 345 | |
| 346 | if (noout) |
| 347 | { |
| 348 | ret = 0; |
| 349 | goto end; |
| 350 | } |
| 351 | |
| 352 | BIO_printf(bio_err, "writing EC key\n"); |
| 353 | if (outformat == FORMAT_ASN1) |
| 354 | { |
| 355 | if (param_out) |
| 356 | i = i2d_ECPKParameters_bio(out, group); |
| 357 | else if (pubin || pubout) |
| 358 | i = i2d_EC_PUBKEY_bio(out, eckey); |
| 359 | else |
| 360 | i = i2d_ECPrivateKey_bio(out, eckey); |
| 361 | } |
| 362 | else if (outformat == FORMAT_PEM) |
| 363 | { |
| 364 | if (param_out) |
| 365 | i = PEM_write_bio_ECPKParameters(out, group); |
| 366 | else if (pubin || pubout) |
| 367 | i = PEM_write_bio_EC_PUBKEY(out, eckey); |
| 368 | else |
| 369 | i = PEM_write_bio_ECPrivateKey(out, eckey, enc, |
| 370 | NULL, 0, NULL, passout); |
| 371 | } |
| 372 | else |
| 373 | { |
| 374 | BIO_printf(bio_err, "bad output format specified for " |
| 375 | "outfile\n"); |
| 376 | goto end; |
| 377 | } |
| 378 | |
| 379 | if (!i) |
| 380 | { |
| 381 | BIO_printf(bio_err, "unable to write private key\n"); |
| 382 | ERR_print_errors(bio_err); |
| 383 | } |
| 384 | else |
| 385 | ret=0; |
| 386 | end: |
| 387 | if (in) |
| 388 | BIO_free(in); |
| 389 | if (out) |
| 390 | BIO_free_all(out); |
| 391 | if (eckey) |
| 392 | EC_KEY_free(eckey); |
| 393 | if (passin) |
| 394 | OPENSSL_free(passin); |
| 395 | if (passout) |
| 396 | OPENSSL_free(passout); |
| 397 | apps_shutdown(); |
| 398 | OPENSSL_EXIT(ret); |
| 399 | } |
| 400 | #else /* !OPENSSL_NO_EC */ |
| 401 | |
| 402 | # if PEDANTIC |
| 403 | static void *dummy=&dummy; |
| 404 | # endif |
| 405 | |
| 406 | #endif |