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 #ifndef OPENSSL_NO_DSA 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <time.h> 64 #include "apps.h" 65 #include <openssl/bio.h> 66 #include <openssl/err.h> 67 #include <openssl/dsa.h> 68 #include <openssl/evp.h> 69 #include <openssl/x509.h> 70 #include <openssl/pem.h> 71 72 #undef PROG 73 #define PROG dsa_main 74 75 /* -inform arg - input format - default PEM (one of DER, NET or PEM) 76 * -outform arg - output format - default PEM 77 * -in arg - input file - default stdin 78 * -out arg - output file - default stdout 79 * -des - encrypt output if PEM format with DES in cbc mode 80 * -des3 - encrypt output if PEM format 81 * -idea - encrypt output if PEM format 82 * -aes128 - encrypt output if PEM format 83 * -aes192 - encrypt output if PEM format 84 * -aes256 - encrypt output if PEM format 85 * -text - print a text version 86 * -modulus - print the DSA public key 87 */ 88 89 int MAIN(int, char **); 90 91 int MAIN(int argc, char **argv) 92 { 93 #ifndef OPENSSL_NO_ENGINE 94 ENGINE *e = NULL; 95 #endif 96 int ret=1; 97 DSA *dsa=NULL; 98 int i,badops=0; 99 const EVP_CIPHER *enc=NULL; 100 BIO *in=NULL,*out=NULL; 101 int informat,outformat,text=0,noout=0; 102 int pubin = 0, pubout = 0; 103 char *infile,*outfile,*prog; 104 #ifndef OPENSSL_NO_ENGINE 105 char *engine; 106 #endif 107 char *passargin = NULL, *passargout = NULL; 108 char *passin = NULL, *passout = NULL; 109 int modulus=0; 110 111 apps_startup(); 112 113 if (bio_err == NULL) 114 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 115 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 116 117 if (!load_config(bio_err, NULL)) 118 goto end; 119 120 #ifndef OPENSSL_NO_ENGINE 121 engine=NULL; 122 #endif 123 infile=NULL; 124 outfile=NULL; 125 informat=FORMAT_PEM; 126 outformat=FORMAT_PEM; 127 128 prog=argv[0]; 129 argc--; 130 argv++; 131 while (argc >= 1) 132 { 133 if (strcmp(*argv,"-inform") == 0) 134 { 135 if (--argc < 1) goto bad; 136 informat=str2fmt(*(++argv)); 137 } 138 else if (strcmp(*argv,"-outform") == 0) 139 { 140 if (--argc < 1) goto bad; 141 outformat=str2fmt(*(++argv)); 142 } 143 else if (strcmp(*argv,"-in") == 0) 144 { 145 if (--argc < 1) goto bad; 146 infile= *(++argv); 147 } 148 else if (strcmp(*argv,"-out") == 0) 149 { 150 if (--argc < 1) goto bad; 151 outfile= *(++argv); 152 } 153 else if (strcmp(*argv,"-passin") == 0) 154 { 155 if (--argc < 1) goto bad; 156 passargin= *(++argv); 157 } 158 else if (strcmp(*argv,"-passout") == 0) 159 { 160 if (--argc < 1) goto bad; 161 passargout= *(++argv); 162 } 163 #ifndef OPENSSL_NO_ENGINE 164 else if (strcmp(*argv,"-engine") == 0) 165 { 166 if (--argc < 1) goto bad; 167 engine= *(++argv); 168 } 169 #endif 170 else if (strcmp(*argv,"-noout") == 0) 171 noout=1; 172 else if (strcmp(*argv,"-text") == 0) 173 text=1; 174 else if (strcmp(*argv,"-modulus") == 0) 175 modulus=1; 176 else if (strcmp(*argv,"-pubin") == 0) 177 pubin=1; 178 else if (strcmp(*argv,"-pubout") == 0) 179 pubout=1; 180 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 181 { 182 BIO_printf(bio_err,"unknown option %s\n",*argv); 183 badops=1; 184 break; 185 } 186 argc--; 187 argv++; 188 } 189 190 if (badops) 191 { 192 bad: 193 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 194 BIO_printf(bio_err,"where options are\n"); 195 BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); 196 BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); 197 BIO_printf(bio_err," -in arg input file\n"); 198 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 199 BIO_printf(bio_err," -out arg output file\n"); 200 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 201 #ifndef OPENSSL_NO_ENGINE 202 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 203 #endif 204 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 205 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 206 #ifndef OPENSSL_NO_IDEA 207 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 208 #endif 209 #ifndef OPENSSL_NO_AES 210 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 211 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 212 #endif 213 BIO_printf(bio_err," -text print the key in text\n"); 214 BIO_printf(bio_err," -noout don't print key out\n"); 215 BIO_printf(bio_err," -modulus print the DSA public value\n"); 216 goto end; 217 } 218 219 ERR_load_crypto_strings(); 220 221 #ifndef OPENSSL_NO_ENGINE 222 e = setup_engine(bio_err, engine, 0); 223 #endif 224 225 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 226 BIO_printf(bio_err, "Error getting passwords\n"); 227 goto end; 228 } 229 230 in=BIO_new(BIO_s_file()); 231 out=BIO_new(BIO_s_file()); 232 if ((in == NULL) || (out == NULL)) 233 { 234 ERR_print_errors(bio_err); 235 goto end; 236 } 237 238 if (infile == NULL) 239 BIO_set_fp(in,stdin,BIO_NOCLOSE); 240 else 241 { 242 if (BIO_read_filename(in,infile) <= 0) 243 { 244 perror(infile); 245 goto end; 246 } 247 } 248 249 BIO_printf(bio_err,"read DSA key\n"); 250 if (informat == FORMAT_ASN1) { 251 if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL); 252 else dsa=d2i_DSAPrivateKey_bio(in,NULL); 253 } else if (informat == FORMAT_PEM) { 254 if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL); 255 else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin); 256 } else 257 { 258 BIO_printf(bio_err,"bad input format specified for key\n"); 259 goto end; 260 } 261 if (dsa == NULL) 262 { 263 BIO_printf(bio_err,"unable to load Key\n"); 264 ERR_print_errors(bio_err); 265 goto end; 266 } 267 268 if (outfile == NULL) 269 { 270 BIO_set_fp(out,stdout,BIO_NOCLOSE); 271 #ifdef OPENSSL_SYS_VMS 272 { 273 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 274 out = BIO_push(tmpbio, out); 275 } 276 #endif 277 } 278 else 279 { 280 if (BIO_write_filename(out,outfile) <= 0) 281 { 282 perror(outfile); 283 goto end; 284 } 285 } 286 287 if (text) 288 if (!DSA_print(out,dsa,0)) 289 { 290 perror(outfile); 291 ERR_print_errors(bio_err); 292 goto end; 293 } 294 295 if (modulus) 296 { 297 fprintf(stdout,"Public Key="); 298 BN_print(out,dsa->pub_key); 299 fprintf(stdout,"\n"); 300 } 301 302 if (noout) goto end; 303 BIO_printf(bio_err,"writing DSA key\n"); 304 if (outformat == FORMAT_ASN1) { 305 if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); 306 else i=i2d_DSAPrivateKey_bio(out,dsa); 307 } else if (outformat == FORMAT_PEM) { 308 if(pubin || pubout) 309 i=PEM_write_bio_DSA_PUBKEY(out,dsa); 310 else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, 311 NULL,0,NULL, passout); 312 } else { 313 BIO_printf(bio_err,"bad output format specified for outfile\n"); 314 goto end; 315 } 316 if (!i) 317 { 318 BIO_printf(bio_err,"unable to write private key\n"); 319 ERR_print_errors(bio_err); 320 } 321 else 322 ret=0; 323 end: 324 if(in != NULL) BIO_free(in); 325 if(out != NULL) BIO_free_all(out); 326 if(dsa != NULL) DSA_free(dsa); 327 if(passin) OPENSSL_free(passin); 328 if(passout) OPENSSL_free(passout); 329 apps_shutdown(); 330 OPENSSL_EXIT(ret); 331 } 332 #endif 333