gendsa.c revision 109998
1166124Srafan/* apps/gendsa.c */ 2166124Srafan/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3166124Srafan * All rights reserved. 4166124Srafan * 5166124Srafan * This package is an SSL implementation written 6166124Srafan * by Eric Young (eay@cryptsoft.com). 7166124Srafan * The implementation was written so as to conform with Netscapes SSL. 8166124Srafan * 9166124Srafan * This library is free for commercial and non-commercial use as long as 10166124Srafan * the following conditions are aheared to. The following conditions 11166124Srafan * apply to all code found in this distribution, be it the RC4, RSA, 12166124Srafan * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13166124Srafan * included with this distribution is covered by the same copyright terms 14166124Srafan * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15166124Srafan * 16166124Srafan * Copyright remains Eric Young's, and as such any Copyright notices in 17166124Srafan * the code are not to be removed. 18166124Srafan * If this package is used in a product, Eric Young should be given attribution 19166124Srafan * as the author of the parts of the library used. 20166124Srafan * This can be in the form of a textual message at program startup or 21166124Srafan * in documentation (online or textual) provided with the package. 22166124Srafan * 23166124Srafan * Redistribution and use in source and binary forms, with or without 24166124Srafan * modification, are permitted provided that the following conditions 25166124Srafan * are met: 26166124Srafan * 1. Redistributions of source code must retain the copyright 27166124Srafan * notice, this list of conditions and the following disclaimer. 28166124Srafan * 2. Redistributions in binary form must reproduce the above copyright 29166124Srafan * notice, this list of conditions and the following disclaimer in the 30166124Srafan * documentation and/or other materials provided with the distribution. 31166124Srafan * 3. All advertising materials mentioning features or use of this software 32166124Srafan * must display the following acknowledgement: 33166124Srafan * "This product includes cryptographic software written by 34166124Srafan * Eric Young (eay@cryptsoft.com)" 35166124Srafan * The word 'cryptographic' can be left out if the rouines from the library 36166124Srafan * being used are not cryptographic related :-). 37166124Srafan * 4. If you include any Windows specific code (or a derivative thereof) from 38166124Srafan * the apps directory (application code) you must include an acknowledgement: 39166124Srafan * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40166124Srafan * 41166124Srafan * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42166124Srafan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43166124Srafan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44166124Srafan * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45166124Srafan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46166124Srafan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47166124Srafan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48166124Srafan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49166124Srafan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50166124Srafan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51166124Srafan * SUCH DAMAGE. 52166124Srafan * 53166124Srafan * The licence and distribution terms for any publically available version or 54166124Srafan * derivative of this code cannot be changed. i.e. this code cannot simply be 55166124Srafan * copied and put under another distribution licence 56166124Srafan * [including the GNU Public Licence.] 57166124Srafan */ 58166124Srafan 59166124Srafan#ifndef OPENSSL_NO_DSA 60166124Srafan#include <stdio.h> 61166124Srafan#include <string.h> 62166124Srafan#include <sys/types.h> 63166124Srafan#include <sys/stat.h> 64166124Srafan#include "apps.h" 65166124Srafan#include <openssl/bio.h> 66166124Srafan#include <openssl/err.h> 67166124Srafan#include <openssl/bn.h> 68166124Srafan#include <openssl/dsa.h> 69166124Srafan#include <openssl/x509.h> 70166124Srafan#include <openssl/pem.h> 71166124Srafan 72166124Srafan#define DEFBITS 512 73166124Srafan#undef PROG 74166124Srafan#define PROG gendsa_main 75166124Srafan 76166124Srafanint MAIN(int, char **); 77166124Srafan 78166124Srafanint MAIN(int argc, char **argv) 79166124Srafan { 80166124Srafan ENGINE *e = NULL; 81166124Srafan DSA *dsa=NULL; 82166124Srafan int ret=1; 83166124Srafan char *outfile=NULL; 84166124Srafan char *inrand=NULL,*dsaparams=NULL; 85166124Srafan char *passargout = NULL, *passout = NULL; 86166124Srafan BIO *out=NULL,*in=NULL; 87166124Srafan const EVP_CIPHER *enc=NULL; 88166124Srafan char *engine=NULL; 89166124Srafan 90166124Srafan apps_startup(); 91166124Srafan 92166124Srafan if (bio_err == NULL) 93166124Srafan if ((bio_err=BIO_new(BIO_s_file())) != NULL) 94166124Srafan BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 95166124Srafan 96166124Srafan if (!load_config(bio_err, NULL)) 97166124Srafan goto end; 98166124Srafan 99166124Srafan argv++; 100166124Srafan argc--; 101166124Srafan for (;;) 102166124Srafan { 103166124Srafan if (argc <= 0) break; 104166124Srafan if (strcmp(*argv,"-out") == 0) 105166124Srafan { 106166124Srafan if (--argc < 1) goto bad; 107166124Srafan outfile= *(++argv); 108166124Srafan } 109166124Srafan else if (strcmp(*argv,"-passout") == 0) 110166124Srafan { 111166124Srafan if (--argc < 1) goto bad; 112166124Srafan passargout= *(++argv); 113166124Srafan } 114166124Srafan else if (strcmp(*argv,"-engine") == 0) 115166124Srafan { 116166124Srafan if (--argc < 1) goto bad; 117166124Srafan engine= *(++argv); 118166124Srafan } 119166124Srafan else if (strcmp(*argv,"-rand") == 0) 120166124Srafan { 121166124Srafan if (--argc < 1) goto bad; 122166124Srafan inrand= *(++argv); 123166124Srafan } 124166124Srafan else if (strcmp(*argv,"-") == 0) 125166124Srafan goto bad; 126166124Srafan#ifndef OPENSSL_NO_DES 127166124Srafan else if (strcmp(*argv,"-des") == 0) 128166124Srafan enc=EVP_des_cbc(); 129166124Srafan else if (strcmp(*argv,"-des3") == 0) 130166124Srafan enc=EVP_des_ede3_cbc(); 131166124Srafan#endif 132166124Srafan#ifndef OPENSSL_NO_IDEA 133166124Srafan else if (strcmp(*argv,"-idea") == 0) 134166124Srafan enc=EVP_idea_cbc(); 135166124Srafan#endif 136166124Srafan#ifndef OPENSSL_NO_AES 137166124Srafan else if (strcmp(*argv,"-aes128") == 0) 138166124Srafan enc=EVP_aes_128_cbc(); 139166124Srafan else if (strcmp(*argv,"-aes192") == 0) 140166124Srafan enc=EVP_aes_192_cbc(); 141166124Srafan else if (strcmp(*argv,"-aes256") == 0) 142166124Srafan enc=EVP_aes_256_cbc(); 143166124Srafan#endif 144166124Srafan else if (**argv != '-' && dsaparams == NULL) 145166124Srafan { 146166124Srafan dsaparams = *argv; 147166124Srafan } 148166124Srafan else 149166124Srafan goto bad; 150166124Srafan argv++; 151166124Srafan argc--; 152166124Srafan } 153166124Srafan 154166124Srafan if (dsaparams == NULL) 155166124Srafan { 156166124Srafanbad: 157166124Srafan BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n"); 158166124Srafan BIO_printf(bio_err," -out file - output the key to 'file'\n"); 159166124Srafan#ifndef OPENSSL_NO_DES 160166124Srafan BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n"); 161166124Srafan BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); 162166124Srafan#endif 163166124Srafan#ifndef OPENSSL_NO_IDEA 164166124Srafan BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n"); 165166124Srafan#endif 166166124Srafan#ifndef OPENSSL_NO_AES 167166124Srafan BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 168166124Srafan BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 169166124Srafan#endif 170166124Srafan BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n"); 171166124Srafan BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 172166124Srafan BIO_printf(bio_err," - load the file (or the files in the directory) into\n"); 173166124Srafan BIO_printf(bio_err," the random number generator\n"); 174166124Srafan BIO_printf(bio_err," dsaparam-file\n"); 175166124Srafan BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n"); 176166124Srafan goto end; 177166124Srafan } 178166124Srafan 179166124Srafan e = setup_engine(bio_err, engine, 0); 180166124Srafan 181166124Srafan if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { 182166124Srafan BIO_printf(bio_err, "Error getting password\n"); 183166124Srafan goto end; 184166124Srafan } 185166124Srafan 186166124Srafan 187166124Srafan in=BIO_new(BIO_s_file()); 188166124Srafan if (!(BIO_read_filename(in,dsaparams))) 189166124Srafan { 190166124Srafan perror(dsaparams); 191166124Srafan goto end; 192166124Srafan } 193166124Srafan 194166124Srafan if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL) 195166124Srafan { 196166124Srafan BIO_printf(bio_err,"unable to load DSA parameter file\n"); 197166124Srafan goto end; 198166124Srafan } 199166124Srafan BIO_free(in); 200166124Srafan in = NULL; 201166124Srafan 202166124Srafan out=BIO_new(BIO_s_file()); 203166124Srafan if (out == NULL) goto end; 204166124Srafan 205166124Srafan if (outfile == NULL) 206166124Srafan { 207166124Srafan BIO_set_fp(out,stdout,BIO_NOCLOSE); 208166124Srafan#ifdef OPENSSL_SYS_VMS 209166124Srafan { 210166124Srafan BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 211166124Srafan out = BIO_push(tmpbio, out); 212166124Srafan } 213166124Srafan#endif 214166124Srafan } 215166124Srafan else 216166124Srafan { 217166124Srafan if (BIO_write_filename(out,outfile) <= 0) 218166124Srafan { 219166124Srafan perror(outfile); 220166124Srafan goto end; 221166124Srafan } 222166124Srafan } 223166124Srafan 224166124Srafan if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) 225166124Srafan { 226166124Srafan BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 227166124Srafan } 228166124Srafan if (inrand != NULL) 229166124Srafan BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 230166124Srafan app_RAND_load_files(inrand)); 231166124Srafan 232166124Srafan BIO_printf(bio_err,"Generating DSA key, %d bits\n", 233166124Srafan BN_num_bits(dsa->p)); 234166124Srafan if (!DSA_generate_key(dsa)) goto end; 235166124Srafan 236166124Srafan app_RAND_write_file(NULL, bio_err); 237166124Srafan 238166124Srafan if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL, passout)) 239166124Srafan goto end; 240166124Srafan ret=0; 241166124Srafanend: 242166124Srafan if (ret != 0) 243166124Srafan ERR_print_errors(bio_err); 244166124Srafan if (in != NULL) BIO_free(in); 245166124Srafan if (out != NULL) BIO_free_all(out); 246166124Srafan if (dsa != NULL) DSA_free(dsa); 247166124Srafan if(passout) OPENSSL_free(passout); 248166124Srafan apps_shutdown(); 249166124Srafan OPENSSL_EXIT(ret); 250166124Srafan } 251166124Srafan#endif 252166124Srafan