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 char *engine; 110 char *passargin = NULL, *passargout = NULL; 111 char *passin = NULL, *passout = NULL; 112 int modulus = 0; 113 114 int pvk_encr = 2; 115 116 apps_startup(); 117 118 if (bio_err == NULL) 119 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 120 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 121 122 if (!load_config(bio_err, NULL)) 123 goto end; 124 125 engine = NULL; 126 infile = NULL; 127 outfile = NULL; 128 informat = FORMAT_PEM; 129 outformat = FORMAT_PEM; 130 131 prog = argv[0]; 132 argc--; 133 argv++; 134 while (argc >= 1) { 135 if (strcmp(*argv, "-inform") == 0) { 136 if (--argc < 1) 137 goto bad; 138 informat = str2fmt(*(++argv)); 139 } else if (strcmp(*argv, "-outform") == 0) { 140 if (--argc < 1) 141 goto bad; 142 outformat = str2fmt(*(++argv)); 143 } else if (strcmp(*argv, "-in") == 0) { 144 if (--argc < 1) 145 goto bad; 146 infile = *(++argv); 147 } else if (strcmp(*argv, "-out") == 0) { 148 if (--argc < 1) 149 goto bad; 150 outfile = *(++argv); 151 } else if (strcmp(*argv, "-passin") == 0) { 152 if (--argc < 1) 153 goto bad; 154 passargin = *(++argv); 155 } else if (strcmp(*argv, "-passout") == 0) { 156 if (--argc < 1) 157 goto bad; 158 passargout = *(++argv); 159 } 160 # ifndef OPENSSL_NO_ENGINE 161 else if (strcmp(*argv, "-engine") == 0) { 162 if (--argc < 1) 163 goto bad; 164 engine = *(++argv); 165 } 166 # endif 167 else if (strcmp(*argv, "-pvk-strong") == 0) 168 pvk_encr = 2; 169 else if (strcmp(*argv, "-pvk-weak") == 0) 170 pvk_encr = 1; 171 else if (strcmp(*argv, "-pvk-none") == 0) 172 pvk_encr = 0; 173 else if (strcmp(*argv, "-noout") == 0) 174 noout = 1; 175 else if (strcmp(*argv, "-text") == 0) 176 text = 1; 177 else if (strcmp(*argv, "-modulus") == 0) 178 modulus = 1; 179 else if (strcmp(*argv, "-pubin") == 0) 180 pubin = 1; 181 else if (strcmp(*argv, "-pubout") == 0) 182 pubout = 1; 183 else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) { 184 BIO_printf(bio_err, "unknown option %s\n", *argv); 185 badops = 1; 186 break; 187 } 188 argc--; 189 argv++; 190 } 191 192 if (badops) { 193 bad: 194 BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); 195 BIO_printf(bio_err, "where options are\n"); 196 BIO_printf(bio_err, " -inform arg input format - DER or PEM\n"); 197 BIO_printf(bio_err, " -outform arg output format - DER or PEM\n"); 198 BIO_printf(bio_err, " -in arg input file\n"); 199 BIO_printf(bio_err, 200 " -passin arg input file pass phrase source\n"); 201 BIO_printf(bio_err, " -out arg output file\n"); 202 BIO_printf(bio_err, 203 " -passout arg output file pass phrase source\n"); 204 # ifndef OPENSSL_NO_ENGINE 205 BIO_printf(bio_err, 206 " -engine e use engine e, possibly a hardware device.\n"); 207 # endif 208 BIO_printf(bio_err, 209 " -des encrypt PEM output with cbc des\n"); 210 BIO_printf(bio_err, 211 " -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 212 # ifndef OPENSSL_NO_IDEA 213 BIO_printf(bio_err, 214 " -idea encrypt PEM output with cbc idea\n"); 215 # endif 216 # ifndef OPENSSL_NO_AES 217 BIO_printf(bio_err, " -aes128, -aes192, -aes256\n"); 218 BIO_printf(bio_err, 219 " encrypt PEM output with cbc aes\n"); 220 # endif 221 # ifndef OPENSSL_NO_CAMELLIA 222 BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n"); 223 BIO_printf(bio_err, 224 " encrypt PEM output with cbc camellia\n"); 225 # endif 226 # ifndef OPENSSL_NO_SEED 227 BIO_printf(bio_err, 228 " -seed encrypt PEM output with cbc seed\n"); 229 # endif 230 BIO_printf(bio_err, " -text print the key in text\n"); 231 BIO_printf(bio_err, " -noout don't print key out\n"); 232 BIO_printf(bio_err, " -modulus print the DSA public value\n"); 233 goto end; 234 } 235 236 ERR_load_crypto_strings(); 237 238 e = setup_engine(bio_err, engine, 0); 239 240 if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 241 BIO_printf(bio_err, "Error getting passwords\n"); 242 goto end; 243 } 244 245 in = BIO_new(BIO_s_file()); 246 out = BIO_new(BIO_s_file()); 247 if ((in == NULL) || (out == NULL)) { 248 ERR_print_errors(bio_err); 249 goto end; 250 } 251 252 if (infile == NULL) 253 BIO_set_fp(in, stdin, BIO_NOCLOSE); 254 else { 255 if (BIO_read_filename(in, infile) <= 0) { 256 perror(infile); 257 goto end; 258 } 259 } 260 261 BIO_printf(bio_err, "read DSA key\n"); 262 263 { 264 EVP_PKEY *pkey; 265 266 if (pubin) 267 pkey = load_pubkey(bio_err, infile, informat, 1, 268 passin, e, "Public Key"); 269 else 270 pkey = load_key(bio_err, infile, informat, 1, 271 passin, e, "Private Key"); 272 273 if (pkey) { 274 dsa = EVP_PKEY_get1_DSA(pkey); 275 EVP_PKEY_free(pkey); 276 } 277 } 278 if (dsa == NULL) { 279 BIO_printf(bio_err, "unable to load Key\n"); 280 ERR_print_errors(bio_err); 281 goto end; 282 } 283 284 if (outfile == NULL) { 285 BIO_set_fp(out, stdout, BIO_NOCLOSE); 286 # ifdef OPENSSL_SYS_VMS 287 { 288 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 289 out = BIO_push(tmpbio, out); 290 } 291 # endif 292 } else { 293 if (BIO_write_filename(out, outfile) <= 0) { 294 perror(outfile); 295 goto end; 296 } 297 } 298 299 if (text) 300 if (!DSA_print(out, dsa, 0)) { 301 perror(outfile); 302 ERR_print_errors(bio_err); 303 goto end; 304 } 305 306 if (modulus) { 307 fprintf(stdout, "Public Key="); 308 BN_print(out, dsa->pub_key); 309 fprintf(stdout, "\n"); 310 } 311 312 if (noout) 313 goto end; 314 BIO_printf(bio_err, "writing DSA key\n"); 315 if (outformat == FORMAT_ASN1) { 316 if (pubin || pubout) 317 i = i2d_DSA_PUBKEY_bio(out, dsa); 318 else 319 i = i2d_DSAPrivateKey_bio(out, dsa); 320 } else if (outformat == FORMAT_PEM) { 321 if (pubin || pubout) 322 i = PEM_write_bio_DSA_PUBKEY(out, dsa); 323 else 324 i = PEM_write_bio_DSAPrivateKey(out, dsa, enc, 325 NULL, 0, NULL, passout); 326 # if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_RC4) 327 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) { 328 EVP_PKEY *pk; 329 pk = EVP_PKEY_new(); 330 if (pk == NULL) 331 goto end; 332 333 EVP_PKEY_set1_DSA(pk, dsa); 334 if (outformat == FORMAT_PVK) 335 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout); 336 else if (pubin || pubout) 337 i = i2b_PublicKey_bio(out, pk); 338 else 339 i = i2b_PrivateKey_bio(out, pk); 340 EVP_PKEY_free(pk); 341 # endif 342 } else { 343 BIO_printf(bio_err, "bad output format specified for outfile\n"); 344 goto end; 345 } 346 if (i <= 0) { 347 BIO_printf(bio_err, "unable to write private key\n"); 348 ERR_print_errors(bio_err); 349 } else 350 ret = 0; 351 end: 352 if (in != NULL) 353 BIO_free(in); 354 if (out != NULL) 355 BIO_free_all(out); 356 if (dsa != NULL) 357 DSA_free(dsa); 358 release_engine(e); 359 if (passin) 360 OPENSSL_free(passin); 361 if (passout) 362 OPENSSL_free(passout); 363 apps_shutdown(); 364 OPENSSL_EXIT(ret); 365 } 366 #else /* !OPENSSL_NO_DSA */ 367 368 # if PEDANTIC 369 static void *dummy = &dummy; 370 # endif 371 372 #endif 373