1 /* apps/dsa.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 /* -inform arg - input format - default PEM (one of DER, NET or PEM) 78 * -outform arg - output format - default PEM 79 * -in arg - input file - default stdin 80 * -out arg - output file - default stdout 81 * -des - encrypt output if PEM format with DES in cbc mode 82 * -des3 - encrypt output if PEM format 83 * -idea - encrypt output if PEM format 84 * -aes128 - encrypt output if PEM format 85 * -aes192 - encrypt output if PEM format 86 * -aes256 - encrypt output if PEM format 87 * -camellia128 - encrypt output if PEM format 88 * -camellia192 - encrypt output if PEM format 89 * -camellia256 - encrypt output if PEM format 90 * -seed - encrypt output if PEM format 91 * -text - print a text version 92 * -modulus - print the DSA public key 93 */ 94 95 int MAIN(int, char **); 96 97 int MAIN(int argc, char **argv) 98 { 99 ENGINE *e = NULL; 100 int ret=1; 101 DSA *dsa=NULL; 102 int i,badops=0; 103 const EVP_CIPHER *enc=NULL; 104 BIO *in=NULL,*out=NULL; 105 int informat,outformat,text=0,noout=0; 106 int pubin = 0, pubout = 0; 107 char *infile,*outfile,*prog; 108 #ifndef OPENSSL_NO_ENGINE 109 char *engine; 110 #endif 111 char *passargin = NULL, *passargout = NULL; 112 char *passin = NULL, *passout = NULL; 113 int modulus=0; 114 115 int pvk_encr = 2; 116 117 apps_startup(); 118 119 if (bio_err == NULL) 120 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 121 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 122 123 if (!load_config(bio_err, NULL)) 124 goto end; 125 126 #ifndef OPENSSL_NO_ENGINE 127 engine=NULL; 128 #endif 129 infile=NULL; 130 outfile=NULL; 131 informat=FORMAT_PEM; 132 outformat=FORMAT_PEM; 133 134 prog=argv[0]; 135 argc--; 136 argv++; 137 while (argc >= 1) 138 { 139 if (strcmp(*argv,"-inform") == 0) 140 { 141 if (--argc < 1) goto bad; 142 informat=str2fmt(*(++argv)); 143 } 144 else if (strcmp(*argv,"-outform") == 0) 145 { 146 if (--argc < 1) goto bad; 147 outformat=str2fmt(*(++argv)); 148 } 149 else if (strcmp(*argv,"-in") == 0) 150 { 151 if (--argc < 1) goto bad; 152 infile= *(++argv); 153 } 154 else if (strcmp(*argv,"-out") == 0) 155 { 156 if (--argc < 1) goto bad; 157 outfile= *(++argv); 158 } 159 else if (strcmp(*argv,"-passin") == 0) 160 { 161 if (--argc < 1) goto bad; 162 passargin= *(++argv); 163 } 164 else if (strcmp(*argv,"-passout") == 0) 165 { 166 if (--argc < 1) goto bad; 167 passargout= *(++argv); 168 } 169 #ifndef OPENSSL_NO_ENGINE 170 else if (strcmp(*argv,"-engine") == 0) 171 { 172 if (--argc < 1) goto bad; 173 engine= *(++argv); 174 } 175 #endif 176 else if (strcmp(*argv,"-pvk-strong") == 0) 177 pvk_encr=2; 178 else if (strcmp(*argv,"-pvk-weak") == 0) 179 pvk_encr=1; 180 else if (strcmp(*argv,"-pvk-none") == 0) 181 pvk_encr=0; 182 else if (strcmp(*argv,"-noout") == 0) 183 noout=1; 184 else if (strcmp(*argv,"-text") == 0) 185 text=1; 186 else if (strcmp(*argv,"-modulus") == 0) 187 modulus=1; 188 else if (strcmp(*argv,"-pubin") == 0) 189 pubin=1; 190 else if (strcmp(*argv,"-pubout") == 0) 191 pubout=1; 192 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 193 { 194 BIO_printf(bio_err,"unknown option %s\n",*argv); 195 badops=1; 196 break; 197 } 198 argc--; 199 argv++; 200 } 201 202 if (badops) 203 { 204 bad: 205 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 206 BIO_printf(bio_err,"where options are\n"); 207 BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); 208 BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); 209 BIO_printf(bio_err," -in arg input file\n"); 210 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 211 BIO_printf(bio_err," -out arg output file\n"); 212 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 213 #ifndef OPENSSL_NO_ENGINE 214 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 215 #endif 216 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 217 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 218 #ifndef OPENSSL_NO_IDEA 219 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 220 #endif 221 #ifndef OPENSSL_NO_AES 222 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 223 BIO_printf(bio_err," 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," encrypt PEM output with cbc camellia\n"); 228 #endif 229 #ifndef OPENSSL_NO_SEED 230 BIO_printf(bio_err," -seed encrypt PEM output with cbc seed\n"); 231 #endif 232 BIO_printf(bio_err," -text print the key in text\n"); 233 BIO_printf(bio_err," -noout don't print key out\n"); 234 BIO_printf(bio_err," -modulus print the DSA public value\n"); 235 goto end; 236 } 237 238 ERR_load_crypto_strings(); 239 240 #ifndef OPENSSL_NO_ENGINE 241 e = setup_engine(bio_err, engine, 0); 242 #endif 243 244 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 245 BIO_printf(bio_err, "Error getting passwords\n"); 246 goto end; 247 } 248 249 in=BIO_new(BIO_s_file()); 250 out=BIO_new(BIO_s_file()); 251 if ((in == NULL) || (out == NULL)) 252 { 253 ERR_print_errors(bio_err); 254 goto end; 255 } 256 257 if (infile == NULL) 258 BIO_set_fp(in,stdin,BIO_NOCLOSE); 259 else 260 { 261 if (BIO_read_filename(in,infile) <= 0) 262 { 263 perror(infile); 264 goto end; 265 } 266 } 267 268 BIO_printf(bio_err,"read DSA key\n"); 269 270 { 271 EVP_PKEY *pkey; 272 273 if (pubin) 274 pkey = load_pubkey(bio_err, infile, informat, 1, 275 passin, e, "Public Key"); 276 else 277 pkey = load_key(bio_err, infile, informat, 1, 278 passin, e, "Private Key"); 279 280 if (pkey) 281 { 282 dsa = EVP_PKEY_get1_DSA(pkey); 283 EVP_PKEY_free(pkey); 284 } 285 } 286 if (dsa == NULL) 287 { 288 BIO_printf(bio_err,"unable to load Key\n"); 289 ERR_print_errors(bio_err); 290 goto end; 291 } 292 293 if (outfile == NULL) 294 { 295 BIO_set_fp(out,stdout,BIO_NOCLOSE); 296 #ifdef OPENSSL_SYS_VMS 297 { 298 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 299 out = BIO_push(tmpbio, out); 300 } 301 #endif 302 } 303 else 304 { 305 if (BIO_write_filename(out,outfile) <= 0) 306 { 307 perror(outfile); 308 goto end; 309 } 310 } 311 312 if (text) 313 if (!DSA_print(out,dsa,0)) 314 { 315 perror(outfile); 316 ERR_print_errors(bio_err); 317 goto end; 318 } 319 320 if (modulus) 321 { 322 fprintf(stdout,"Public Key="); 323 BN_print(out,dsa->pub_key); 324 fprintf(stdout,"\n"); 325 } 326 327 if (noout) goto end; 328 BIO_printf(bio_err,"writing DSA key\n"); 329 if (outformat == FORMAT_ASN1) { 330 if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); 331 else i=i2d_DSAPrivateKey_bio(out,dsa); 332 } else if (outformat == FORMAT_PEM) { 333 if(pubin || pubout) 334 i=PEM_write_bio_DSA_PUBKEY(out,dsa); 335 else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, 336 NULL,0,NULL, passout); 337 #if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_RC4) 338 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) { 339 EVP_PKEY *pk; 340 pk = EVP_PKEY_new(); 341 EVP_PKEY_set1_DSA(pk, dsa); 342 if (outformat == FORMAT_PVK) 343 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout); 344 else if (pubin || pubout) 345 i = i2b_PublicKey_bio(out, pk); 346 else 347 i = i2b_PrivateKey_bio(out, pk); 348 EVP_PKEY_free(pk); 349 #endif 350 } else { 351 BIO_printf(bio_err,"bad output format specified for outfile\n"); 352 goto end; 353 } 354 if (i <= 0) 355 { 356 BIO_printf(bio_err,"unable to write private key\n"); 357 ERR_print_errors(bio_err); 358 } 359 else 360 ret=0; 361 end: 362 if(in != NULL) BIO_free(in); 363 if(out != NULL) BIO_free_all(out); 364 if(dsa != NULL) DSA_free(dsa); 365 if(passin) OPENSSL_free(passin); 366 if(passout) OPENSSL_free(passout); 367 apps_shutdown(); 368 OPENSSL_EXIT(ret); 369 } 370 #else /* !OPENSSL_NO_DSA */ 371 372 # if PEDANTIC 373 static void *dummy=&dummy; 374 # endif 375 376 #endif 377
