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/evp.h> 69 #include <openssl/x509.h> 70 #include <openssl/pem.h> 71 #include <openssl/bn.h> 72 #include <openssl/dsa.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 apps_startup(); 116 117 if (bio_err == NULL) 118 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 119 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 120 121 if (!load_config(bio_err, NULL)) 122 goto end; 123 124 #ifndef OPENSSL_NO_ENGINE 125 engine=NULL; 126 #endif 127 infile=NULL; 128 outfile=NULL; 129 informat=FORMAT_PEM; 130 outformat=FORMAT_PEM; 131 132 prog=argv[0]; 133 argc--; 134 argv++; 135 while (argc >= 1) 136 { 137 if (strcmp(*argv,"-inform") == 0) 138 { 139 if (--argc < 1) goto bad; 140 informat=str2fmt(*(++argv)); 141 } 142 else if (strcmp(*argv,"-outform") == 0) 143 { 144 if (--argc < 1) goto bad; 145 outformat=str2fmt(*(++argv)); 146 } 147 else if (strcmp(*argv,"-in") == 0) 148 { 149 if (--argc < 1) goto bad; 150 infile= *(++argv); 151 } 152 else if (strcmp(*argv,"-out") == 0) 153 { 154 if (--argc < 1) goto bad; 155 outfile= *(++argv); 156 } 157 else if (strcmp(*argv,"-passin") == 0) 158 { 159 if (--argc < 1) goto bad; 160 passargin= *(++argv); 161 } 162 else if (strcmp(*argv,"-passout") == 0) 163 { 164 if (--argc < 1) goto bad; 165 passargout= *(++argv); 166 } 167 #ifndef OPENSSL_NO_ENGINE 168 else if (strcmp(*argv,"-engine") == 0) 169 { 170 if (--argc < 1) goto bad; 171 engine= *(++argv); 172 } 173 #endif 174 else if (strcmp(*argv,"-noout") == 0) 175 noout=1; 176 else if (strcmp(*argv,"-text") == 0) 177 text=1; 178 else if (strcmp(*argv,"-modulus") == 0) 179 modulus=1; 180 else if (strcmp(*argv,"-pubin") == 0) 181 pubin=1; 182 else if (strcmp(*argv,"-pubout") == 0) 183 pubout=1; 184 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 185 { 186 BIO_printf(bio_err,"unknown option %s\n",*argv); 187 badops=1; 188 break; 189 } 190 argc--; 191 argv++; 192 } 193 194 if (badops) 195 { 196 bad: 197 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 198 BIO_printf(bio_err,"where options are\n"); 199 BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); 200 BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); 201 BIO_printf(bio_err," -in arg input file\n"); 202 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 203 BIO_printf(bio_err," -out arg output file\n"); 204 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 205 #ifndef OPENSSL_NO_ENGINE 206 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 207 #endif 208 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 209 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 210 #ifndef OPENSSL_NO_IDEA 211 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 212 #endif 213 #ifndef OPENSSL_NO_AES 214 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 215 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 216 #endif 217 #ifndef OPENSSL_NO_CAMELLIA 218 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n"); 219 BIO_printf(bio_err," encrypt PEM output with cbc camellia\n"); 220 #endif 221 #ifndef OPENSSL_NO_SEED 222 BIO_printf(bio_err," -seed encrypt PEM output with cbc seed\n"); 223 #endif 224 BIO_printf(bio_err," -text print the key in text\n"); 225 BIO_printf(bio_err," -noout don't print key out\n"); 226 BIO_printf(bio_err," -modulus print the DSA public value\n"); 227 goto end; 228 } 229 230 ERR_load_crypto_strings(); 231 232 #ifndef OPENSSL_NO_ENGINE 233 e = setup_engine(bio_err, engine, 0); 234 #endif 235 236 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 237 BIO_printf(bio_err, "Error getting passwords\n"); 238 goto end; 239 } 240 241 out=BIO_new(BIO_s_file()); 242 if (out == NULL) 243 { 244 ERR_print_errors(bio_err); 245 goto end; 246 } 247 248 BIO_printf(bio_err,"read DSA key\n"); 249 { 250 EVP_PKEY *pkey; 251 if (pubin) 252 pkey = load_pubkey(bio_err, infile, informat, 1, 253 passin, e, "Public Key"); 254 else 255 pkey = load_key(bio_err, infile, informat, 1, 256 passin, e, "Private Key"); 257 258 if (pkey != NULL) 259 dsa = pkey == NULL ? NULL : EVP_PKEY_get1_DSA(pkey); 260 EVP_PKEY_free(pkey); 261 } 262 if (dsa == NULL) 263 { 264 BIO_printf(bio_err,"unable to load Key\n"); 265 ERR_print_errors(bio_err); 266 goto end; 267 } 268 269 if (outfile == NULL) 270 { 271 BIO_set_fp(out,stdout,BIO_NOCLOSE); 272 #ifdef OPENSSL_SYS_VMS 273 { 274 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 275 out = BIO_push(tmpbio, out); 276 } 277 #endif 278 } 279 else 280 { 281 if (BIO_write_filename(out,outfile) <= 0) 282 { 283 perror(outfile); 284 goto end; 285 } 286 } 287 288 if (text) 289 if (!DSA_print(out,dsa,0)) 290 { 291 perror(outfile); 292 ERR_print_errors(bio_err); 293 goto end; 294 } 295 296 if (modulus) 297 { 298 fprintf(stdout,"Public Key="); 299 BN_print(out,dsa->pub_key); 300 fprintf(stdout,"\n"); 301 } 302 303 if (noout) goto end; 304 BIO_printf(bio_err,"writing DSA key\n"); 305 if (outformat == FORMAT_ASN1) { 306 if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa); 307 else i=i2d_DSAPrivateKey_bio(out,dsa); 308 } else if (outformat == FORMAT_PEM) { 309 if(pubin || pubout) 310 i=PEM_write_bio_DSA_PUBKEY(out,dsa); 311 else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc, 312 NULL,0,NULL, passout); 313 } else { 314 BIO_printf(bio_err,"bad output format specified for outfile\n"); 315 goto end; 316 } 317 if (!i) 318 { 319 BIO_printf(bio_err,"unable to write private key\n"); 320 ERR_print_errors(bio_err); 321 } 322 else 323 ret=0; 324 end: 325 if(in != NULL) BIO_free(in); 326 if(out != NULL) BIO_free_all(out); 327 if(dsa != NULL) DSA_free(dsa); 328 if(passin) OPENSSL_free(passin); 329 if(passout) OPENSSL_free(passout); 330 apps_shutdown(); 331 OPENSSL_EXIT(ret); 332 } 333 #endif 334
