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 /* -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 * -text - print a text version 91 * -modulus - print the DSA public key 92 */ 93 94 int MAIN(int, char **); 95 96 int MAIN(int argc, char **argv) 97 { 98 #ifndef OPENSSL_NO_ENGINE 99 ENGINE *e = NULL; 100 #endif 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 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 #ifndef OPENSSL_NO_ENGINE 126 engine=NULL; 127 #endif 128 infile=NULL; 129 outfile=NULL; 130 informat=FORMAT_PEM; 131 outformat=FORMAT_PEM; 132 133 prog=argv[0]; 134 argc--; 135 argv++; 136 while (argc >= 1) 137 { 138 if (strcmp(*argv,"-inform") == 0) 139 { 140 if (--argc < 1) goto bad; 141 informat=str2fmt(*(++argv)); 142 } 143 else if (strcmp(*argv,"-outform") == 0) 144 { 145 if (--argc < 1) goto bad; 146 outformat=str2fmt(*(++argv)); 147 } 148 else if (strcmp(*argv,"-in") == 0) 149 { 150 if (--argc < 1) goto bad; 151 infile= *(++argv); 152 } 153 else if (strcmp(*argv,"-out") == 0) 154 { 155 if (--argc < 1) goto bad; 156 outfile= *(++argv); 157 } 158 else if (strcmp(*argv,"-passin") == 0) 159 { 160 if (--argc < 1) goto bad; 161 passargin= *(++argv); 162 } 163 else if (strcmp(*argv,"-passout") == 0) 164 { 165 if (--argc < 1) goto bad; 166 passargout= *(++argv); 167 } 168 #ifndef OPENSSL_NO_ENGINE 169 else if (strcmp(*argv,"-engine") == 0) 170 { 171 if (--argc < 1) goto bad; 172 engine= *(++argv); 173 } 174 #endif 175 else if (strcmp(*argv,"-noout") == 0) 176 noout=1; 177 else if (strcmp(*argv,"-text") == 0) 178 text=1; 179 else if (strcmp(*argv,"-modulus") == 0) 180 modulus=1; 181 else if (strcmp(*argv,"-pubin") == 0) 182 pubin=1; 183 else if (strcmp(*argv,"-pubout") == 0) 184 pubout=1; 185 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 186 { 187 BIO_printf(bio_err,"unknown option %s\n",*argv); 188 badops=1; 189 break; 190 } 191 argc--; 192 argv++; 193 } 194 195 if (badops) 196 { 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," -passin arg input file pass phrase source\n"); 204 BIO_printf(bio_err," -out arg output file\n"); 205 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 206 #ifndef OPENSSL_NO_ENGINE 207 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 208 #endif 209 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 210 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 211 #ifndef OPENSSL_NO_IDEA 212 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 213 #endif 214 #ifndef OPENSSL_NO_AES 215 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 216 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 217 #endif 218 #ifndef OPENSSL_NO_CAMELLIA 219 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n"); 220 BIO_printf(bio_err," encrypt PEM output with cbc camellia\n"); 221 #endif 222 BIO_printf(bio_err," -text print the key in text\n"); 223 BIO_printf(bio_err," -noout don't print key out\n"); 224 BIO_printf(bio_err," -modulus print the DSA public value\n"); 225 goto end; 226 } 227 228 ERR_load_crypto_strings(); 229 230 #ifndef OPENSSL_NO_ENGINE 231 e = setup_engine(bio_err, engine, 0); 232 #endif 233 234 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 235 BIO_printf(bio_err, "Error getting passwords\n"); 236 goto end; 237 } 238 239 in=BIO_new(BIO_s_file()); 240 out=BIO_new(BIO_s_file()); 241 if ((in == NULL) || (out == NULL)) 242 { 243 ERR_print_errors(bio_err); 244 goto end; 245 } 246 247 if (infile == NULL) 248 BIO_set_fp(in,stdin,BIO_NOCLOSE); 249 else 250 { 251 if (BIO_read_filename(in,infile) <= 0) 252 { 253 perror(infile); 254 goto end; 255 } 256 } 257 258 BIO_printf(bio_err,"read DSA key\n"); 259 if (informat == FORMAT_ASN1) { 260 if(pubin) dsa=d2i_DSA_PUBKEY_bio(in,NULL); 261 else dsa=d2i_DSAPrivateKey_bio(in,NULL); 262 } else if (informat == FORMAT_PEM) { 263 if(pubin) dsa=PEM_read_bio_DSA_PUBKEY(in,NULL, NULL, NULL); 264 else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,passin); 265 } else 266 { 267 BIO_printf(bio_err,"bad input format specified for key\n"); 268 goto end; 269 } 270 if (dsa == NULL) 271 { 272 BIO_printf(bio_err,"unable to load Key\n"); 273 ERR_print_errors(bio_err); 274 goto end; 275 } 276 277 if (outfile == NULL) 278 { 279 BIO_set_fp(out,stdout,BIO_NOCLOSE); 280 #ifdef OPENSSL_SYS_VMS 281 { 282 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 283 out = BIO_push(tmpbio, out); 284 } 285 #endif 286 } 287 else 288 { 289 if (BIO_write_filename(out,outfile) <= 0) 290 { 291 perror(outfile); 292 goto end; 293 } 294 } 295 296 if (text) 297 if (!DSA_print(out,dsa,0)) 298 { 299 perror(outfile); 300 ERR_print_errors(bio_err); 301 goto end; 302 } 303 304 if (modulus) 305 { 306 fprintf(stdout,"Public Key="); 307 BN_print(out,dsa->pub_key); 308 fprintf(stdout,"\n"); 309 } 310 311 if (noout) goto end; 312 BIO_printf(bio_err,"writing DSA key\n"); 313 if (outformat == FORMAT_ASN1) { 314 if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); 315 else i=i2d_DSAPrivateKey_bio(out,dsa); 316 } else if (outformat == FORMAT_PEM) { 317 if(pubin || pubout) 318 i=PEM_write_bio_DSA_PUBKEY(out,dsa); 319 else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, 320 NULL,0,NULL, passout); 321 } else { 322 BIO_printf(bio_err,"bad output format specified for outfile\n"); 323 goto end; 324 } 325 if (!i) 326 { 327 BIO_printf(bio_err,"unable to write private key\n"); 328 ERR_print_errors(bio_err); 329 } 330 else 331 ret=0; 332 end: 333 if(in != NULL) BIO_free(in); 334 if(out != NULL) BIO_free_all(out); 335 if(dsa != NULL) DSA_free(dsa); 336 if(passin) OPENSSL_free(passin); 337 if(passout) OPENSSL_free(passout); 338 apps_shutdown(); 339 OPENSSL_EXIT(ret); 340 } 341 #endif 342