1*0Sstevel@tonic-gate /* apps/gendh.c */ 2*0Sstevel@tonic-gate /* obsoleted by dhparam.c */ 3*0Sstevel@tonic-gate /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 4*0Sstevel@tonic-gate * All rights reserved. 5*0Sstevel@tonic-gate * 6*0Sstevel@tonic-gate * This package is an SSL implementation written 7*0Sstevel@tonic-gate * by Eric Young (eay@cryptsoft.com). 8*0Sstevel@tonic-gate * The implementation was written so as to conform with Netscapes SSL. 9*0Sstevel@tonic-gate * 10*0Sstevel@tonic-gate * This library is free for commercial and non-commercial use as long as 11*0Sstevel@tonic-gate * the following conditions are aheared to. The following conditions 12*0Sstevel@tonic-gate * apply to all code found in this distribution, be it the RC4, RSA, 13*0Sstevel@tonic-gate * lhash, DES, etc., code; not just the SSL code. The SSL documentation 14*0Sstevel@tonic-gate * included with this distribution is covered by the same copyright terms 15*0Sstevel@tonic-gate * except that the holder is Tim Hudson (tjh@cryptsoft.com). 16*0Sstevel@tonic-gate * 17*0Sstevel@tonic-gate * Copyright remains Eric Young's, and as such any Copyright notices in 18*0Sstevel@tonic-gate * the code are not to be removed. 19*0Sstevel@tonic-gate * If this package is used in a product, Eric Young should be given attribution 20*0Sstevel@tonic-gate * as the author of the parts of the library used. 21*0Sstevel@tonic-gate * This can be in the form of a textual message at program startup or 22*0Sstevel@tonic-gate * in documentation (online or textual) provided with the package. 23*0Sstevel@tonic-gate * 24*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 25*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 26*0Sstevel@tonic-gate * are met: 27*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the copyright 28*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 29*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 30*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 31*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 32*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 33*0Sstevel@tonic-gate * must display the following acknowledgement: 34*0Sstevel@tonic-gate * "This product includes cryptographic software written by 35*0Sstevel@tonic-gate * Eric Young (eay@cryptsoft.com)" 36*0Sstevel@tonic-gate * The word 'cryptographic' can be left out if the rouines from the library 37*0Sstevel@tonic-gate * being used are not cryptographic related :-). 38*0Sstevel@tonic-gate * 4. If you include any Windows specific code (or a derivative thereof) from 39*0Sstevel@tonic-gate * the apps directory (application code) you must include an acknowledgement: 40*0Sstevel@tonic-gate * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 41*0Sstevel@tonic-gate * 42*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 43*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 44*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 45*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 46*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 47*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 48*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 49*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 50*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 51*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 52*0Sstevel@tonic-gate * SUCH DAMAGE. 53*0Sstevel@tonic-gate * 54*0Sstevel@tonic-gate * The licence and distribution terms for any publically available version or 55*0Sstevel@tonic-gate * derivative of this code cannot be changed. i.e. this code cannot simply be 56*0Sstevel@tonic-gate * copied and put under another distribution licence 57*0Sstevel@tonic-gate * [including the GNU Public Licence.] 58*0Sstevel@tonic-gate */ 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate #ifndef OPENSSL_NO_DH 61*0Sstevel@tonic-gate #include <stdio.h> 62*0Sstevel@tonic-gate #include <string.h> 63*0Sstevel@tonic-gate #include <sys/types.h> 64*0Sstevel@tonic-gate #include <sys/stat.h> 65*0Sstevel@tonic-gate #include "apps.h" 66*0Sstevel@tonic-gate #include <openssl/bio.h> 67*0Sstevel@tonic-gate #include <openssl/rand.h> 68*0Sstevel@tonic-gate #include <openssl/err.h> 69*0Sstevel@tonic-gate #include <openssl/bn.h> 70*0Sstevel@tonic-gate #include <openssl/dh.h> 71*0Sstevel@tonic-gate #include <openssl/x509.h> 72*0Sstevel@tonic-gate #include <openssl/pem.h> 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate #define DEFBITS 512 75*0Sstevel@tonic-gate #undef PROG 76*0Sstevel@tonic-gate #define PROG gendh_main 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate static void MS_CALLBACK dh_cb(int p, int n, void *arg); 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate int MAIN(int, char **); 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate int MAIN(int argc, char **argv) 83*0Sstevel@tonic-gate { 84*0Sstevel@tonic-gate #ifndef OPENSSL_NO_ENGINE 85*0Sstevel@tonic-gate ENGINE *e = NULL; 86*0Sstevel@tonic-gate #endif 87*0Sstevel@tonic-gate DH *dh=NULL; 88*0Sstevel@tonic-gate int ret=1,num=DEFBITS; 89*0Sstevel@tonic-gate int g=2; 90*0Sstevel@tonic-gate char *outfile=NULL; 91*0Sstevel@tonic-gate char *inrand=NULL; 92*0Sstevel@tonic-gate #ifndef OPENSSL_NO_ENGINE 93*0Sstevel@tonic-gate char *engine=NULL; 94*0Sstevel@tonic-gate #endif 95*0Sstevel@tonic-gate BIO *out=NULL; 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate apps_startup(); 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate if (bio_err == NULL) 100*0Sstevel@tonic-gate if ((bio_err=BIO_new(BIO_s_file())) != NULL) 101*0Sstevel@tonic-gate BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate if (!load_config(bio_err, NULL)) 104*0Sstevel@tonic-gate goto end; 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate argv++; 107*0Sstevel@tonic-gate argc--; 108*0Sstevel@tonic-gate for (;;) 109*0Sstevel@tonic-gate { 110*0Sstevel@tonic-gate if (argc <= 0) break; 111*0Sstevel@tonic-gate if (strcmp(*argv,"-out") == 0) 112*0Sstevel@tonic-gate { 113*0Sstevel@tonic-gate if (--argc < 1) goto bad; 114*0Sstevel@tonic-gate outfile= *(++argv); 115*0Sstevel@tonic-gate } 116*0Sstevel@tonic-gate else if (strcmp(*argv,"-2") == 0) 117*0Sstevel@tonic-gate g=2; 118*0Sstevel@tonic-gate /* else if (strcmp(*argv,"-3") == 0) 119*0Sstevel@tonic-gate g=3; */ 120*0Sstevel@tonic-gate else if (strcmp(*argv,"-5") == 0) 121*0Sstevel@tonic-gate g=5; 122*0Sstevel@tonic-gate #ifndef OPENSSL_NO_ENGINE 123*0Sstevel@tonic-gate else if (strcmp(*argv,"-engine") == 0) 124*0Sstevel@tonic-gate { 125*0Sstevel@tonic-gate if (--argc < 1) goto bad; 126*0Sstevel@tonic-gate engine= *(++argv); 127*0Sstevel@tonic-gate } 128*0Sstevel@tonic-gate #endif 129*0Sstevel@tonic-gate else if (strcmp(*argv,"-rand") == 0) 130*0Sstevel@tonic-gate { 131*0Sstevel@tonic-gate if (--argc < 1) goto bad; 132*0Sstevel@tonic-gate inrand= *(++argv); 133*0Sstevel@tonic-gate } 134*0Sstevel@tonic-gate else 135*0Sstevel@tonic-gate break; 136*0Sstevel@tonic-gate argv++; 137*0Sstevel@tonic-gate argc--; 138*0Sstevel@tonic-gate } 139*0Sstevel@tonic-gate if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0))) 140*0Sstevel@tonic-gate { 141*0Sstevel@tonic-gate bad: 142*0Sstevel@tonic-gate BIO_printf(bio_err,"usage: gendh [args] [numbits]\n"); 143*0Sstevel@tonic-gate BIO_printf(bio_err," -out file - output the key to 'file\n"); 144*0Sstevel@tonic-gate BIO_printf(bio_err," -2 - use 2 as the generator value\n"); 145*0Sstevel@tonic-gate /* BIO_printf(bio_err," -3 - use 3 as the generator value\n"); */ 146*0Sstevel@tonic-gate BIO_printf(bio_err," -5 - use 5 as the generator value\n"); 147*0Sstevel@tonic-gate #ifndef OPENSSL_NO_ENGINE 148*0Sstevel@tonic-gate BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n"); 149*0Sstevel@tonic-gate #endif 150*0Sstevel@tonic-gate BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 151*0Sstevel@tonic-gate BIO_printf(bio_err," - load the file (or the files in the directory) into\n"); 152*0Sstevel@tonic-gate BIO_printf(bio_err," the random number generator\n"); 153*0Sstevel@tonic-gate goto end; 154*0Sstevel@tonic-gate } 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate #ifndef OPENSSL_NO_ENGINE 157*0Sstevel@tonic-gate e = setup_engine(bio_err, engine, 0); 158*0Sstevel@tonic-gate #endif 159*0Sstevel@tonic-gate 160*0Sstevel@tonic-gate out=BIO_new(BIO_s_file()); 161*0Sstevel@tonic-gate if (out == NULL) 162*0Sstevel@tonic-gate { 163*0Sstevel@tonic-gate ERR_print_errors(bio_err); 164*0Sstevel@tonic-gate goto end; 165*0Sstevel@tonic-gate } 166*0Sstevel@tonic-gate 167*0Sstevel@tonic-gate if (outfile == NULL) 168*0Sstevel@tonic-gate { 169*0Sstevel@tonic-gate BIO_set_fp(out,stdout,BIO_NOCLOSE); 170*0Sstevel@tonic-gate #ifdef OPENSSL_SYS_VMS 171*0Sstevel@tonic-gate { 172*0Sstevel@tonic-gate BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 173*0Sstevel@tonic-gate out = BIO_push(tmpbio, out); 174*0Sstevel@tonic-gate } 175*0Sstevel@tonic-gate #endif 176*0Sstevel@tonic-gate } 177*0Sstevel@tonic-gate else 178*0Sstevel@tonic-gate { 179*0Sstevel@tonic-gate if (BIO_write_filename(out,outfile) <= 0) 180*0Sstevel@tonic-gate { 181*0Sstevel@tonic-gate perror(outfile); 182*0Sstevel@tonic-gate goto end; 183*0Sstevel@tonic-gate } 184*0Sstevel@tonic-gate } 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) 187*0Sstevel@tonic-gate { 188*0Sstevel@tonic-gate BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 189*0Sstevel@tonic-gate } 190*0Sstevel@tonic-gate if (inrand != NULL) 191*0Sstevel@tonic-gate BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 192*0Sstevel@tonic-gate app_RAND_load_files(inrand)); 193*0Sstevel@tonic-gate 194*0Sstevel@tonic-gate BIO_printf(bio_err,"Generating DH parameters, %d bit long safe prime, generator %d\n",num,g); 195*0Sstevel@tonic-gate BIO_printf(bio_err,"This is going to take a long time\n"); 196*0Sstevel@tonic-gate dh=DH_generate_parameters(num,g,dh_cb,bio_err); 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate if (dh == NULL) goto end; 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate app_RAND_write_file(NULL, bio_err); 201*0Sstevel@tonic-gate 202*0Sstevel@tonic-gate if (!PEM_write_bio_DHparams(out,dh)) 203*0Sstevel@tonic-gate goto end; 204*0Sstevel@tonic-gate ret=0; 205*0Sstevel@tonic-gate end: 206*0Sstevel@tonic-gate if (ret != 0) 207*0Sstevel@tonic-gate ERR_print_errors(bio_err); 208*0Sstevel@tonic-gate if (out != NULL) BIO_free_all(out); 209*0Sstevel@tonic-gate if (dh != NULL) DH_free(dh); 210*0Sstevel@tonic-gate apps_shutdown(); 211*0Sstevel@tonic-gate OPENSSL_EXIT(ret); 212*0Sstevel@tonic-gate } 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate static void MS_CALLBACK dh_cb(int p, int n, void *arg) 215*0Sstevel@tonic-gate { 216*0Sstevel@tonic-gate char c='*'; 217*0Sstevel@tonic-gate 218*0Sstevel@tonic-gate if (p == 0) c='.'; 219*0Sstevel@tonic-gate if (p == 1) c='+'; 220*0Sstevel@tonic-gate if (p == 2) c='*'; 221*0Sstevel@tonic-gate if (p == 3) c='\n'; 222*0Sstevel@tonic-gate BIO_write((BIO *)arg,&c,1); 223*0Sstevel@tonic-gate (void)BIO_flush((BIO *)arg); 224*0Sstevel@tonic-gate #ifdef LINT 225*0Sstevel@tonic-gate p=n; 226*0Sstevel@tonic-gate #endif 227*0Sstevel@tonic-gate } 228*0Sstevel@tonic-gate #endif 229