1 /* apps/dsa.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ 60 #ifndef OPENSSL_NO_DSA 61 # include <stdio.h> 62 # include <stdlib.h> 63 # include <string.h> 64 # include <time.h> 65 # include "apps.h" 66 # include <openssl/bio.h> 67 # include <openssl/err.h> 68 # include <openssl/dsa.h> 69 # include <openssl/evp.h> 70 # include <openssl/x509.h> 71 # include <openssl/pem.h> 72 # include <openssl/bn.h> 73 74 # undef PROG 75 # define PROG dsa_main 76 77 /*- 78 * -inform arg - input format - default PEM (one of DER, NET or PEM) 79 * -outform arg - output format - default PEM 80 * -in arg - input file - default stdin 81 * -out arg - output file - default stdout 82 * -des - encrypt output if PEM format with DES in cbc mode 83 * -des3 - encrypt output if PEM format 84 * -idea - encrypt output if PEM format 85 * -aes128 - encrypt output if PEM format 86 * -aes192 - encrypt output if PEM format 87 * -aes256 - encrypt output if PEM format 88 * -camellia128 - encrypt output if PEM format 89 * -camellia192 - encrypt output if PEM format 90 * -camellia256 - encrypt output if PEM format 91 * -seed - encrypt output if PEM format 92 * -text - print a text version 93 * -modulus - print the DSA public key 94 */ 95 96 int MAIN(int, char **); 97 98 int MAIN(int argc, char **argv) 99 { 100 ENGINE *e = NULL; 101 int ret = 1; 102 DSA *dsa = NULL; 103 int i, badops = 0; 104 const EVP_CIPHER *enc = NULL; 105 BIO *in = NULL, *out = NULL; 106 int informat, outformat, text = 0, noout = 0; 107 int pubin = 0, pubout = 0; 108 char *infile, *outfile, *prog; 109 # ifndef OPENSSL_NO_ENGINE 110 char *engine; 111 # endif 112 char *passargin = NULL, *passargout = NULL; 113 char *passin = NULL, *passout = NULL; 114 int modulus = 0; 115 116 int pvk_encr = 2; 117 118 apps_startup(); 119 120 if (bio_err == NULL) 121 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 122 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 123 124 if (!load_config(bio_err, NULL)) 125 goto end; 126 127 # ifndef OPENSSL_NO_ENGINE 128 engine = NULL; 129 # endif 130 infile = NULL; 131 outfile = NULL; 132 informat = FORMAT_PEM; 133 outformat = FORMAT_PEM; 134 135 prog = argv[0]; 136 argc--; 137 argv++; 138 while (argc >= 1) { 139 if (strcmp(*argv, "-inform") == 0) { 140 if (--argc < 1) 141 goto bad; 142 informat = str2fmt(*(++argv)); 143 } else if (strcmp(*argv, "-outform") == 0) { 144 if (--argc < 1) 145 goto bad; 146 outformat = str2fmt(*(++argv)); 147 } else if (strcmp(*argv, "-in") == 0) { 148 if (--argc < 1) 149 goto bad; 150 infile = *(++argv); 151 } else if (strcmp(*argv, "-out") == 0) { 152 if (--argc < 1) 153 goto bad; 154 outfile = *(++argv); 155 } else if (strcmp(*argv, "-passin") == 0) { 156 if (--argc < 1) 157 goto bad; 158 passargin = *(++argv); 159 } else if (strcmp(*argv, "-passout") == 0) { 160 if (--argc < 1) 161 goto bad; 162 passargout = *(++argv); 163 } 164 # ifndef OPENSSL_NO_ENGINE 165 else if (strcmp(*argv, "-engine") == 0) { 166 if (--argc < 1) 167 goto bad; 168 engine = *(++argv); 169 } 170 # endif 171 else if (strcmp(*argv, "-pvk-strong") == 0) 172 pvk_encr = 2; 173 else if (strcmp(*argv, "-pvk-weak") == 0) 174 pvk_encr = 1; 175 else if (strcmp(*argv, "-pvk-none") == 0) 176 pvk_encr = 0; 177 else if (strcmp(*argv, "-noout") == 0) 178 noout = 1; 179 else if (strcmp(*argv, "-text") == 0) 180 text = 1; 181 else if (strcmp(*argv, "-modulus") == 0) 182 modulus = 1; 183 else if (strcmp(*argv, "-pubin") == 0) 184 pubin = 1; 185 else if (strcmp(*argv, "-pubout") == 0) 186 pubout = 1; 187 else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) { 188 BIO_printf(bio_err, "unknown option %s\n", *argv); 189 badops = 1; 190 break; 191 } 192 argc--; 193 argv++; 194 } 195 196 if (badops) { 197 bad: 198 BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); 199 BIO_printf(bio_err, "where options are\n"); 200 BIO_printf(bio_err, " -inform arg input format - DER or PEM\n"); 201 BIO_printf(bio_err, " -outform arg output format - DER or PEM\n"); 202 BIO_printf(bio_err, " -in arg input file\n"); 203 BIO_printf(bio_err, 204 " -passin arg input file pass phrase source\n"); 205 BIO_printf(bio_err, " -out arg output file\n"); 206 BIO_printf(bio_err, 207 " -passout arg output file pass phrase source\n"); 208 # ifndef OPENSSL_NO_ENGINE 209 BIO_printf(bio_err, 210 " -engine e use engine e, possibly a hardware device.\n"); 211 # endif 212 BIO_printf(bio_err, 213 " -des encrypt PEM output with cbc des\n"); 214 BIO_printf(bio_err, 215 " -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 216 # ifndef OPENSSL_NO_IDEA 217 BIO_printf(bio_err, 218 " -idea encrypt PEM output with cbc idea\n"); 219 # endif 220 # ifndef OPENSSL_NO_AES 221 BIO_printf(bio_err, " -aes128, -aes192, -aes256\n"); 222 BIO_printf(bio_err, 223 " encrypt PEM output with cbc aes\n"); 224 # endif 225 # ifndef OPENSSL_NO_CAMELLIA 226 BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n"); 227 BIO_printf(bio_err, 228 " encrypt PEM output with cbc camellia\n"); 229 # endif 230 # ifndef OPENSSL_NO_SEED 231 BIO_printf(bio_err, 232 " -seed encrypt PEM output with cbc seed\n"); 233 # endif 234 BIO_printf(bio_err, " -text print the key in text\n"); 235 BIO_printf(bio_err, " -noout don't print key out\n"); 236 BIO_printf(bio_err, " -modulus print the DSA public value\n"); 237 goto end; 238 } 239 240 ERR_load_crypto_strings(); 241 242 # ifndef OPENSSL_NO_ENGINE 243 e = setup_engine(bio_err, engine, 0); 244 # endif 245 246 if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 247 BIO_printf(bio_err, "Error getting passwords\n"); 248 goto end; 249 } 250 251 in = BIO_new(BIO_s_file()); 252 out = BIO_new(BIO_s_file()); 253 if ((in == NULL) || (out == NULL)) { 254 ERR_print_errors(bio_err); 255 goto end; 256 } 257 258 if (infile == NULL) 259 BIO_set_fp(in, stdin, BIO_NOCLOSE); 260 else { 261 if (BIO_read_filename(in, infile) <= 0) { 262 perror(infile); 263 goto end; 264 } 265 } 266 267 BIO_printf(bio_err, "read DSA key\n"); 268 269 { 270 EVP_PKEY *pkey; 271 272 if (pubin) 273 pkey = load_pubkey(bio_err, infile, informat, 1, 274 passin, e, "Public Key"); 275 else 276 pkey = load_key(bio_err, infile, informat, 1, 277 passin, e, "Private Key"); 278 279 if (pkey) { 280 dsa = EVP_PKEY_get1_DSA(pkey); 281 EVP_PKEY_free(pkey); 282 } 283 } 284 if (dsa == NULL) { 285 BIO_printf(bio_err, "unable to load Key\n"); 286 ERR_print_errors(bio_err); 287 goto end; 288 } 289 290 if (outfile == NULL) { 291 BIO_set_fp(out, stdout, BIO_NOCLOSE); 292 # ifdef OPENSSL_SYS_VMS 293 { 294 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 295 out = BIO_push(tmpbio, out); 296 } 297 # endif 298 } else { 299 if (BIO_write_filename(out, outfile) <= 0) { 300 perror(outfile); 301 goto end; 302 } 303 } 304 305 if (text) 306 if (!DSA_print(out, dsa, 0)) { 307 perror(outfile); 308 ERR_print_errors(bio_err); 309 goto end; 310 } 311 312 if (modulus) { 313 fprintf(stdout, "Public Key="); 314 BN_print(out, dsa->pub_key); 315 fprintf(stdout, "\n"); 316 } 317 318 if (noout) 319 goto end; 320 BIO_printf(bio_err, "writing DSA key\n"); 321 if (outformat == FORMAT_ASN1) { 322 if (pubin || pubout) 323 i = i2d_DSA_PUBKEY_bio(out, dsa); 324 else 325 i = i2d_DSAPrivateKey_bio(out, dsa); 326 } else if (outformat == FORMAT_PEM) { 327 if (pubin || pubout) 328 i = PEM_write_bio_DSA_PUBKEY(out, dsa); 329 else 330 i = PEM_write_bio_DSAPrivateKey(out, dsa, enc, 331 NULL, 0, NULL, passout); 332 # if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_RC4) 333 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) { 334 EVP_PKEY *pk; 335 pk = EVP_PKEY_new(); 336 EVP_PKEY_set1_DSA(pk, dsa); 337 if (outformat == FORMAT_PVK) 338 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout); 339 else if (pubin || pubout) 340 i = i2b_PublicKey_bio(out, pk); 341 else 342 i = i2b_PrivateKey_bio(out, pk); 343 EVP_PKEY_free(pk); 344 # endif 345 } else { 346 BIO_printf(bio_err, "bad output format specified for outfile\n"); 347 goto end; 348 } 349 if (i <= 0) { 350 BIO_printf(bio_err, "unable to write private key\n"); 351 ERR_print_errors(bio_err); 352 } else 353 ret = 0; 354 end: 355 if (in != NULL) 356 BIO_free(in); 357 if (out != NULL) 358 BIO_free_all(out); 359 if (dsa != NULL) 360 DSA_free(dsa); 361 if (passin) 362 OPENSSL_free(passin); 363 if (passout) 364 OPENSSL_free(passout); 365 apps_shutdown(); 366 OPENSSL_EXIT(ret); 367 } 368 #else /* !OPENSSL_NO_DSA */ 369 370 # if PEDANTIC 371 static void *dummy = &dummy; 372 # endif 373 374 #endif 375