gendsa.c revision 111147
155714Skris/* apps/gendsa.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 855714Skris * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555714Skris * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 2255714Skris * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 3755714Skris * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055714Skris * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 5255714Skris * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 59109998Smarkm#ifndef OPENSSL_NO_DSA 6055714Skris#include <stdio.h> 6155714Skris#include <string.h> 6255714Skris#include <sys/types.h> 6355714Skris#include <sys/stat.h> 6455714Skris#include "apps.h" 6555714Skris#include <openssl/bio.h> 6655714Skris#include <openssl/err.h> 6755714Skris#include <openssl/bn.h> 6855714Skris#include <openssl/dsa.h> 6955714Skris#include <openssl/x509.h> 7055714Skris#include <openssl/pem.h> 7155714Skris 7255714Skris#define DEFBITS 512 7355714Skris#undef PROG 7455714Skris#define PROG gendsa_main 7555714Skris 7659191Skrisint MAIN(int, char **); 7759191Skris 7855714Skrisint MAIN(int argc, char **argv) 7955714Skris { 80111147Snectar#ifndef OPENSSL_NO_ENGINE 81109998Smarkm ENGINE *e = NULL; 82111147Snectar#endif 8355714Skris DSA *dsa=NULL; 8455714Skris int ret=1; 8555714Skris char *outfile=NULL; 8659191Skris char *inrand=NULL,*dsaparams=NULL; 8759191Skris char *passargout = NULL, *passout = NULL; 8855714Skris BIO *out=NULL,*in=NULL; 89109998Smarkm const EVP_CIPHER *enc=NULL; 90111147Snectar#ifndef OPENSSL_NO_ENGINE 91109998Smarkm char *engine=NULL; 92111147Snectar#endif 9355714Skris 9455714Skris apps_startup(); 9555714Skris 9655714Skris if (bio_err == NULL) 9755714Skris if ((bio_err=BIO_new(BIO_s_file())) != NULL) 9855714Skris BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 9955714Skris 100109998Smarkm if (!load_config(bio_err, NULL)) 101109998Smarkm goto end; 102109998Smarkm 10355714Skris argv++; 10455714Skris argc--; 10555714Skris for (;;) 10655714Skris { 10755714Skris if (argc <= 0) break; 10855714Skris if (strcmp(*argv,"-out") == 0) 10955714Skris { 11055714Skris if (--argc < 1) goto bad; 11155714Skris outfile= *(++argv); 11255714Skris } 11359191Skris else if (strcmp(*argv,"-passout") == 0) 11459191Skris { 11559191Skris if (--argc < 1) goto bad; 11659191Skris passargout= *(++argv); 11759191Skris } 118111147Snectar#ifndef OPENSSL_NO_ENGINE 119109998Smarkm else if (strcmp(*argv,"-engine") == 0) 120109998Smarkm { 121109998Smarkm if (--argc < 1) goto bad; 122109998Smarkm engine= *(++argv); 123109998Smarkm } 124111147Snectar#endif 12555714Skris else if (strcmp(*argv,"-rand") == 0) 12655714Skris { 12755714Skris if (--argc < 1) goto bad; 12855714Skris inrand= *(++argv); 12955714Skris } 13055714Skris else if (strcmp(*argv,"-") == 0) 13155714Skris goto bad; 132109998Smarkm#ifndef OPENSSL_NO_DES 13355714Skris else if (strcmp(*argv,"-des") == 0) 13455714Skris enc=EVP_des_cbc(); 13555714Skris else if (strcmp(*argv,"-des3") == 0) 13655714Skris enc=EVP_des_ede3_cbc(); 13755714Skris#endif 138109998Smarkm#ifndef OPENSSL_NO_IDEA 13955714Skris else if (strcmp(*argv,"-idea") == 0) 14055714Skris enc=EVP_idea_cbc(); 14155714Skris#endif 142109998Smarkm#ifndef OPENSSL_NO_AES 143109998Smarkm else if (strcmp(*argv,"-aes128") == 0) 144109998Smarkm enc=EVP_aes_128_cbc(); 145109998Smarkm else if (strcmp(*argv,"-aes192") == 0) 146109998Smarkm enc=EVP_aes_192_cbc(); 147109998Smarkm else if (strcmp(*argv,"-aes256") == 0) 148109998Smarkm enc=EVP_aes_256_cbc(); 149109998Smarkm#endif 15055714Skris else if (**argv != '-' && dsaparams == NULL) 15155714Skris { 15255714Skris dsaparams = *argv; 15355714Skris } 15455714Skris else 15555714Skris goto bad; 15655714Skris argv++; 15755714Skris argc--; 15855714Skris } 15955714Skris 16055714Skris if (dsaparams == NULL) 16155714Skris { 16255714Skrisbad: 16355714Skris BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n"); 16455714Skris BIO_printf(bio_err," -out file - output the key to 'file'\n"); 165109998Smarkm#ifndef OPENSSL_NO_DES 16655714Skris BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n"); 16755714Skris BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n"); 16855714Skris#endif 169109998Smarkm#ifndef OPENSSL_NO_IDEA 17055714Skris BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n"); 17155714Skris#endif 172109998Smarkm#ifndef OPENSSL_NO_AES 173109998Smarkm BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 174109998Smarkm BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 175109998Smarkm#endif 176111147Snectar#ifndef OPENSSL_NO_ENGINE 177109998Smarkm BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n"); 178111147Snectar#endif 17959191Skris BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 18055714Skris BIO_printf(bio_err," - load the file (or the files in the directory) into\n"); 18155714Skris BIO_printf(bio_err," the random number generator\n"); 18255714Skris BIO_printf(bio_err," dsaparam-file\n"); 18355714Skris BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n"); 18455714Skris goto end; 18555714Skris } 18655714Skris 187111147Snectar#ifndef OPENSSL_NO_ENGINE 188109998Smarkm e = setup_engine(bio_err, engine, 0); 189111147Snectar#endif 190109998Smarkm 19159191Skris if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) { 19259191Skris BIO_printf(bio_err, "Error getting password\n"); 19359191Skris goto end; 19459191Skris } 19559191Skris 19659191Skris 19755714Skris in=BIO_new(BIO_s_file()); 19855714Skris if (!(BIO_read_filename(in,dsaparams))) 19955714Skris { 20055714Skris perror(dsaparams); 20155714Skris goto end; 20255714Skris } 20355714Skris 20455714Skris if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL) 20555714Skris { 20655714Skris BIO_printf(bio_err,"unable to load DSA parameter file\n"); 20755714Skris goto end; 20855714Skris } 20955714Skris BIO_free(in); 21059191Skris in = NULL; 21155714Skris 21255714Skris out=BIO_new(BIO_s_file()); 21355714Skris if (out == NULL) goto end; 21455714Skris 21555714Skris if (outfile == NULL) 21668651Skris { 21755714Skris BIO_set_fp(out,stdout,BIO_NOCLOSE); 218109998Smarkm#ifdef OPENSSL_SYS_VMS 21968651Skris { 22068651Skris BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 22168651Skris out = BIO_push(tmpbio, out); 22268651Skris } 22368651Skris#endif 22468651Skris } 22555714Skris else 22655714Skris { 22755714Skris if (BIO_write_filename(out,outfile) <= 0) 22855714Skris { 22955714Skris perror(outfile); 23055714Skris goto end; 23155714Skris } 23255714Skris } 23355714Skris 23459191Skris if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) 23559191Skris { 23655714Skris BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 23759191Skris } 23859191Skris if (inrand != NULL) 23955714Skris BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 24059191Skris app_RAND_load_files(inrand)); 24155714Skris 24255714Skris BIO_printf(bio_err,"Generating DSA key, %d bits\n", 24355714Skris BN_num_bits(dsa->p)); 24455714Skris if (!DSA_generate_key(dsa)) goto end; 24555714Skris 24659191Skris app_RAND_write_file(NULL, bio_err); 24755714Skris 24859191Skris if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL, passout)) 24955714Skris goto end; 25055714Skris ret=0; 25155714Skrisend: 25255714Skris if (ret != 0) 25355714Skris ERR_print_errors(bio_err); 25459191Skris if (in != NULL) BIO_free(in); 25568651Skris if (out != NULL) BIO_free_all(out); 25655714Skris if (dsa != NULL) DSA_free(dsa); 25768651Skris if(passout) OPENSSL_free(passout); 258109998Smarkm apps_shutdown(); 259109998Smarkm OPENSSL_EXIT(ret); 26055714Skris } 26155714Skris#endif 262