gendsa.c revision 194206
1279377Simp/* apps/gendsa.c */ 2279377Simp/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3279377Simp * All rights reserved. 4279377Simp * 5279377Simp * This package is an SSL implementation written 6279377Simp * by Eric Young (eay@cryptsoft.com). 7279377Simp * The implementation was written so as to conform with Netscapes SSL. 8279377Simp * 9279377Simp * This library is free for commercial and non-commercial use as long as 10279377Simp * the following conditions are aheared to. The following conditions 11279377Simp * apply to all code found in this distribution, be it the RC4, RSA, 12279377Simp * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13279377Simp * included with this distribution is covered by the same copyright terms 14279377Simp * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15279377Simp * 16279377Simp * Copyright remains Eric Young's, and as such any Copyright notices in 17279377Simp * the code are not to be removed. 18279377Simp * If this package is used in a product, Eric Young should be given attribution 19279377Simp * as the author of the parts of the library used. 20279377Simp * This can be in the form of a textual message at program startup or 21279377Simp * in documentation (online or textual) provided with the package. 22279377Simp * 23279377Simp * Redistribution and use in source and binary forms, with or without 24279377Simp * modification, are permitted provided that the following conditions 25279377Simp * are met: 26279377Simp * 1. Redistributions of source code must retain the copyright 27279377Simp * notice, this list of conditions and the following disclaimer. 28279377Simp * 2. Redistributions in binary form must reproduce the above copyright 29279377Simp * notice, this list of conditions and the following disclaimer in the 30279377Simp * documentation and/or other materials provided with the distribution. 31279377Simp * 3. All advertising materials mentioning features or use of this software 32279377Simp * must display the following acknowledgement: 33279377Simp * "This product includes cryptographic software written by 34279377Simp * Eric Young (eay@cryptsoft.com)" 35279377Simp * The word 'cryptographic' can be left out if the rouines from the library 36279377Simp * being used are not cryptographic related :-). 37279377Simp * 4. If you include any Windows specific code (or a derivative thereof) from 38279377Simp * the apps directory (application code) you must include an acknowledgement: 39279377Simp * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40279377Simp * 41279377Simp * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42279377Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43279377Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44279377Simp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45279377Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46279377Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47279377Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48279377Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49279377Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50279377Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51279377Simp * SUCH DAMAGE. 52279377Simp * 53279377Simp * The licence and distribution terms for any publically available version or 54279377Simp * derivative of this code cannot be changed. i.e. this code cannot simply be 55279377Simp * copied and put under another distribution licence 56279377Simp * [including the GNU Public Licence.] 57279377Simp */ 58279377Simp 59279377Simp#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ 60279377Simp#ifndef OPENSSL_NO_DSA 61279377Simp#include <stdio.h> 62279377Simp#include <string.h> 63279377Simp#include <sys/types.h> 64279377Simp#include <sys/stat.h> 65279377Simp#include "apps.h" 66279377Simp#include <openssl/bio.h> 67279377Simp#include <openssl/err.h> 68279377Simp#include <openssl/bn.h> 69279377Simp#include <openssl/dsa.h> 70279377Simp#include <openssl/x509.h> 71279377Simp#include <openssl/pem.h> 72279377Simp 73279377Simp#define DEFBITS 512 74279377Simp#undef PROG 75279377Simp#define PROG gendsa_main 76279377Simp 77279377Simpint MAIN(int, char **); 78279377Simp 79279377Simpint MAIN(int argc, char **argv) 80279377Simp { 81279377Simp#ifndef OPENSSL_NO_ENGINE 82279377Simp ENGINE *e = NULL; 83279377Simp#endif 84279377Simp DSA *dsa=NULL; 85279377Simp int ret=1; 86279377Simp char *outfile=NULL; 87279377Simp char *inrand=NULL,*dsaparams=NULL; 88279377Simp char *passargout = NULL, *passout = NULL; 89279377Simp BIO *out=NULL,*in=NULL; 90279377Simp const EVP_CIPHER *enc=NULL; 91279377Simp#ifndef OPENSSL_NO_ENGINE 92279377Simp char *engine=NULL; 93279377Simp#endif 94279377Simp 95279377Simp apps_startup(); 96279377Simp 97279377Simp if (bio_err == NULL) 98279377Simp if ((bio_err=BIO_new(BIO_s_file())) != NULL) 99279377Simp BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 100279377Simp 101279377Simp if (!load_config(bio_err, NULL)) 102279377Simp goto end; 103279377Simp 104279377Simp argv++; 105279377Simp argc--; 106279377Simp for (;;) 107279377Simp { 108279377Simp if (argc <= 0) break; 109279377Simp if (strcmp(*argv,"-out") == 0) 110279377Simp { 111279377Simp if (--argc < 1) goto bad; 112279377Simp outfile= *(++argv); 113279377Simp } 114279377Simp else if (strcmp(*argv,"-passout") == 0) 115279377Simp { 116279377Simp if (--argc < 1) goto bad; 117279377Simp passargout= *(++argv); 118279377Simp } 119279377Simp#ifndef OPENSSL_NO_ENGINE 120279377Simp else if (strcmp(*argv,"-engine") == 0) 121279377Simp { 122279377Simp if (--argc < 1) goto bad; 123279377Simp engine= *(++argv); 124 } 125#endif 126 else if (strcmp(*argv,"-rand") == 0) 127 { 128 if (--argc < 1) goto bad; 129 inrand= *(++argv); 130 } 131 else if (strcmp(*argv,"-") == 0) 132 goto bad; 133#ifndef OPENSSL_NO_DES 134 else if (strcmp(*argv,"-des") == 0) 135 enc=EVP_des_cbc(); 136 else if (strcmp(*argv,"-des3") == 0) 137 enc=EVP_des_ede3_cbc(); 138#endif 139#ifndef OPENSSL_NO_IDEA 140 else if (strcmp(*argv,"-idea") == 0) 141 enc=EVP_idea_cbc(); 142#endif 143#ifndef OPENSSL_NO_SEED 144 else if (strcmp(*argv,"-seed") == 0) 145 enc=EVP_seed_cbc(); 146#endif 147#ifndef OPENSSL_NO_AES 148 else if (strcmp(*argv,"-aes128") == 0) 149 enc=EVP_aes_128_cbc(); 150 else if (strcmp(*argv,"-aes192") == 0) 151 enc=EVP_aes_192_cbc(); 152 else if (strcmp(*argv,"-aes256") == 0) 153 enc=EVP_aes_256_cbc(); 154#endif 155#ifndef OPENSSL_NO_CAMELLIA 156 else if (strcmp(*argv,"-camellia128") == 0) 157 enc=EVP_camellia_128_cbc(); 158 else if (strcmp(*argv,"-camellia192") == 0) 159 enc=EVP_camellia_192_cbc(); 160 else if (strcmp(*argv,"-camellia256") == 0) 161 enc=EVP_camellia_256_cbc(); 162#endif 163 else if (**argv != '-' && dsaparams == NULL) 164 { 165 dsaparams = *argv; 166 } 167 else 168 goto bad; 169 argv++; 170 argc--; 171 } 172 173 if (dsaparams == NULL) 174 { 175bad: 176 BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n"); 177 BIO_printf(bio_err," -out file - output the key to 'file'\n"); 178#ifndef OPENSSL_NO_DES 179 BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n"); 180 BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); 181#endif 182#ifndef OPENSSL_NO_IDEA 183 BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n"); 184#endif 185#ifndef OPENSSL_NO_SEED 186 BIO_printf(bio_err," -seed\n"); 187 BIO_printf(bio_err," encrypt PEM output with cbc seed\n"); 188#endif 189#ifndef OPENSSL_NO_AES 190 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 191 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 192#endif 193#ifndef OPENSSL_NO_CAMELLIA 194 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n"); 195 BIO_printf(bio_err," encrypt PEM output with cbc camellia\n"); 196#endif 197#ifndef OPENSSL_NO_ENGINE 198 BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n"); 199#endif 200 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 201 BIO_printf(bio_err," - load the file (or the files in the directory) into\n"); 202 BIO_printf(bio_err," the random number generator\n"); 203 BIO_printf(bio_err," dsaparam-file\n"); 204 BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n"); 205 goto end; 206 } 207 208#ifndef OPENSSL_NO_ENGINE 209 e = setup_engine(bio_err, engine, 0); 210#endif 211 212 if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { 213 BIO_printf(bio_err, "Error getting password\n"); 214 goto end; 215 } 216 217 218 in=BIO_new(BIO_s_file()); 219 if (!(BIO_read_filename(in,dsaparams))) 220 { 221 perror(dsaparams); 222 goto end; 223 } 224 225 if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL) 226 { 227 BIO_printf(bio_err,"unable to load DSA parameter file\n"); 228 goto end; 229 } 230 BIO_free(in); 231 in = NULL; 232 233 out=BIO_new(BIO_s_file()); 234 if (out == NULL) goto end; 235 236 if (outfile == NULL) 237 { 238 BIO_set_fp(out,stdout,BIO_NOCLOSE); 239#ifdef OPENSSL_SYS_VMS 240 { 241 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 242 out = BIO_push(tmpbio, out); 243 } 244#endif 245 } 246 else 247 { 248 if (BIO_write_filename(out,outfile) <= 0) 249 { 250 perror(outfile); 251 goto end; 252 } 253 } 254 255 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) 256 { 257 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 258 } 259 if (inrand != NULL) 260 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 261 app_RAND_load_files(inrand)); 262 263 BIO_printf(bio_err,"Generating DSA key, %d bits\n", 264 BN_num_bits(dsa->p)); 265 if (!DSA_generate_key(dsa)) goto end; 266 267 app_RAND_write_file(NULL, bio_err); 268 269 if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL, passout)) 270 goto end; 271 ret=0; 272end: 273 if (ret != 0) 274 ERR_print_errors(bio_err); 275 if (in != NULL) BIO_free(in); 276 if (out != NULL) BIO_free_all(out); 277 if (dsa != NULL) DSA_free(dsa); 278 if(passout) OPENSSL_free(passout); 279 apps_shutdown(); 280 OPENSSL_EXIT(ret); 281 } 282#endif 283