[thirdparty/openssl.git] / apps / gendsa.c

/* apps/gendsa.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#ifndef NO_DSA
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/dsa.h>
#include <openssl/x509.h>
#include <openssl/pem.h>

#define DEFBITS	512
#undef PROG
#define PROG gendsa_main

int MAIN(int argc, char **argv)
	{
	DSA *dsa=NULL;
	int ret=1;
	char *outfile=NULL;
	char *inrand=NULL,*dsaparams=NULL;
	char *passout = NULL;
	BIO *out=NULL,*in=NULL;
	EVP_CIPHER *enc=NULL;

	apps_startup();

	if (bio_err == NULL)
		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

	argv++;
	argc--;
	for (;;)
		{
		if (argc <= 0) break;
		if (strcmp(*argv,"-out") == 0)
			{
			if (--argc < 1) goto bad;
			outfile= *(++argv);
			}
		else if (strcmp(*argv,"-envpassout") == 0)
			{
			if (--argc < 1) goto bad;
			if(!(passout= getenv(*(++argv))))
				{
				BIO_printf(bio_err,
				 "Can't read environment variable %s\n",
								*argv);
				goto bad;
				}
			}
		else if (strcmp(*argv,"-passout") == 0)
			{
			if (--argc < 1) goto bad;
			passout= *(++argv);
			}
		else if (strcmp(*argv,"-rand") == 0)
			{
			if (--argc < 1) goto bad;
			inrand= *(++argv);
			}
		else if (strcmp(*argv,"-") == 0)
			goto bad;
#ifndef NO_DES
		else if (strcmp(*argv,"-des") == 0)
			enc=EVP_des_cbc();
		else if (strcmp(*argv,"-des3") == 0)
			enc=EVP_des_ede3_cbc();
#endif
#ifndef NO_IDEA
		else if (strcmp(*argv,"-idea") == 0)
			enc=EVP_idea_cbc();
#endif
		else if (**argv != '-' && dsaparams == NULL)
			{
			dsaparams = *argv;
			}
		else
			goto bad;
		argv++;
		argc--;
		}

	if (dsaparams == NULL)
		{
bad:
		BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n");
		BIO_printf(bio_err," -out file - output the key to 'file'\n");
#ifndef NO_DES
		BIO_printf(bio_err," -des      - encrypt the generated key with DES in cbc mode\n");
		BIO_printf(bio_err," -des3     - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
#endif
#ifndef NO_IDEA
		BIO_printf(bio_err," -idea     - encrypt the generated key with IDEA in cbc mode\n");
#endif
		BIO_printf(bio_err," -rand file:file:...\n");
		BIO_printf(bio_err,"           - load the file (or the files in the directory) into\n");
		BIO_printf(bio_err,"             the random number generator\n");
		BIO_printf(bio_err," dsaparam-file\n");
		BIO_printf(bio_err,"           - a DSA parameter file as generated by the dsaparam command\n");
		goto end;
		}

	in=BIO_new(BIO_s_file());
	if (!(BIO_read_filename(in,dsaparams)))
		{
		perror(dsaparams);
		goto end;
		}

	if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
		{
		BIO_printf(bio_err,"unable to load DSA parameter file\n");
		goto end;
		}
	BIO_free(in);
	in = NULL;
		
	out=BIO_new(BIO_s_file());
	if (out == NULL) goto end;

	if (outfile == NULL)
		BIO_set_fp(out,stdout,BIO_NOCLOSE);
	else
		{
		if (BIO_write_filename(out,outfile) <= 0)
			{
			perror(outfile);
			goto end;
			}
		}

	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL)
		{
		BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
		}
	if (inrand != NULL)
		BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
			app_RAND_load_files(inrand));

	BIO_printf(bio_err,"Generating DSA key, %d bits\n",
							BN_num_bits(dsa->p));
	if (!DSA_generate_key(dsa)) goto end;

	app_RAND_write_file(NULL, bio_err);

	if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,PEM_cb, passout))
		goto end;
	ret=0;
end:
	if (ret != 0)
		ERR_print_errors(bio_err);
	if (in != NULL) BIO_free(in);
	if (out != NULL) BIO_free(out);
	if (dsa != NULL) DSA_free(dsa);
	EXIT(ret);
	}
#endif
Commit	Line	Data
d02b48c6	1	/* apps/gendsa.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	5	* This package is an SSL implementation written
	6	* by Eric Young (eay@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@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@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@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
f5d7a031	59	#ifndef NO_DSA
d02b48c6 RE	60	#include <stdio.h>
	61	#include <string.h>
	62	#include <sys/types.h>
	63	#include <sys/stat.h>
	64	#include "apps.h"
ec577822	65	#include <openssl/bio.h>
ec577822 BM	66	#include <openssl/err.h>
	67	#include <openssl/bn.h>
	68	#include <openssl/dsa.h>
	69	#include <openssl/x509.h>
	70	#include <openssl/pem.h>
d02b48c6 RE	71
	72	#define DEFBITS 512
	73	#undef PROG
	74	#define PROG gendsa_main
	75
6b691a5c	76	int MAIN(int argc, char **argv)
d02b48c6	77	{
d02b48c6	78	DSA *dsa=NULL;
7f9b7b07	79	int ret=1;
d02b48c6	80	char *outfile=NULL;
a31011e8	81	char inrand=NULL,dsaparams=NULL;
f07fb9b2	82	char *passout = NULL;
d02b48c6	83	BIO out=NULL,in=NULL;
7f9b7b07	84	EVP_CIPHER *enc=NULL;
d02b48c6 RE	85
	86	apps_startup();
	87
	88	if (bio_err == NULL)
	89	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	90	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6 RE	91
	92	argv++;
	93	argc--;
	94	for (;;)
	95	{
	96	if (argc <= 0) break;
	97	if (strcmp(*argv,"-out") == 0)
	98	{
	99	if (--argc < 1) goto bad;
	100	outfile= *(++argv);
	101	}
f07fb9b2 DSH	102	else if (strcmp(*argv,"-envpassout") == 0)
	103	{
	104	if (--argc < 1) goto bad;
	105	if(!(passout= getenv(*(++argv))))
	106	{
	107	BIO_printf(bio_err,
	108	"Can't read environment variable %s\n",
	109	*argv);
	110	goto bad;
	111	}
	112	}
	113	else if (strcmp(*argv,"-passout") == 0)
	114	{
	115	if (--argc < 1) goto bad;
	116	passout= *(++argv);
	117	}
d02b48c6 RE	118	else if (strcmp(*argv,"-rand") == 0)
	119	{
	120	if (--argc < 1) goto bad;
	121	inrand= *(++argv);
	122	}
	123	else if (strcmp(*argv,"-") == 0)
	124	goto bad;
7f9b7b07 DSH	125	#ifndef NO_DES
	126	else if (strcmp(*argv,"-des") == 0)
	127	enc=EVP_des_cbc();
	128	else if (strcmp(*argv,"-des3") == 0)
	129	enc=EVP_des_ede3_cbc();
	130	#endif
	131	#ifndef NO_IDEA
	132	else if (strcmp(*argv,"-idea") == 0)
	133	enc=EVP_idea_cbc();
	134	#endif
e42979f2	135	else if (**argv != '-' && dsaparams == NULL)
c69e361f BM	136	{
	137	dsaparams = *argv;
	138	}
d02b48c6 RE	139	else
	140	goto bad;
	141	argv++;
	142	argc--;
	143	}
	144
	145	if (dsaparams == NULL)
	146	{
	147	bad:
f2f351ce	148	BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n");
7f9b7b07 DSH	149	BIO_printf(bio_err," -out file - output the key to 'file'\n");
	150	#ifndef NO_DES
	151	BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n");
	152	BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
	153	#endif
	154	#ifndef NO_IDEA
	155	BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n");
	156	#endif
d02b48c6 RE	157	BIO_printf(bio_err," -rand file:file:...\n");
	158	BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
	159	BIO_printf(bio_err," the random number generator\n");
f2f351ce RE	160	BIO_printf(bio_err," dsaparam-file\n");
f2f351ce RE	161	BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n");
d02b48c6 RE	162	goto end;
	163	}
	164
	165	in=BIO_new(BIO_s_file());
7f9b7b07	166	if (!(BIO_read_filename(in,dsaparams)))
d02b48c6 RE	167	{
	168	perror(dsaparams);
	169	goto end;
	170	}
	171
74678cc2	172	if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
d02b48c6 RE	173	{
	174	BIO_printf(bio_err,"unable to load DSA parameter file\n");
	175	goto end;
	176	}
	177	BIO_free(in);
8652d1c2	178	in = NULL;
d02b48c6 RE	179
	180	out=BIO_new(BIO_s_file());
	181	if (out == NULL) goto end;
	182
	183	if (outfile == NULL)
	184	BIO_set_fp(out,stdout,BIO_NOCLOSE);
	185	else
	186	{
	187	if (BIO_write_filename(out,outfile) <= 0)
	188	{
	189	perror(outfile);
	190	goto end;
	191	}
	192	}
	193
a31011e8	194	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL)
d02b48c6	195	{
a31011e8	196	BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
d02b48c6	197	}
a31011e8 BM	198	if (inrand != NULL)
	199	BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
	200	app_RAND_load_files(inrand));
d02b48c6	201
7f9b7b07 DSH	202	BIO_printf(bio_err,"Generating DSA key, %d bits\n",
7f9b7b07 DSH	203	BN_num_bits(dsa->p));
d02b48c6 RE	204	if (!DSA_generate_key(dsa)) goto end;
d02b48c6 RE	205
a31011e8	206	app_RAND_write_file(NULL, bio_err);
d02b48c6	207
f07fb9b2	208	if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,PEM_cb, passout))
d02b48c6 RE	209	goto end;
	210	ret=0;
	211	end:
	212	if (ret != 0)
	213	ERR_print_errors(bio_err);
8652d1c2	214	if (in != NULL) BIO_free(in);
d02b48c6 RE	215	if (out != NULL) BIO_free(out);
	216	if (dsa != NULL) DSA_free(dsa);
	217	EXIT(ret);
	218	}
f5d7a031	219	#endif