[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/rand.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

static long dsa_load_rand(char *names);
int MAIN(int argc, char **argv)
	{
	char buffer[200];
	DSA *dsa=NULL;
	int ret=1;
	char *outfile=NULL;
	char *inrand=NULL,*randfile,*dsaparams=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,"-rand") == 0)
			{
			if (--argc < 1) goto bad;
			inrand= *(++argv);
			}
		else if (strcmp(*argv,"-") == 0)
			goto bad;
		else if (dsaparams == NULL)
			{
			dsaparams= *argv;
			}
#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
			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)
		{
		BIO_printf(bio_err,"unable to load DSA parameter file\n");
		goto end;
		}
	BIO_free(in);
		
	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;
			}
		}

	randfile=RAND_file_name(buffer,200);
	if ((randfile == NULL)|| !RAND_load_file(randfile,1024L*1024L))
		BIO_printf(bio_err,"unable to load 'random state'\n");

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

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

	if (randfile == NULL)
		BIO_printf(bio_err,"unable to write 'random state'\n");
	else
		RAND_write_file(randfile);

	if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL))
		goto end;
	ret=0;
end:
	if (ret != 0)
		ERR_print_errors(bio_err);
	if (out != NULL) BIO_free(out);
	if (dsa != NULL) DSA_free(dsa);
	EXIT(ret);
	}

static long dsa_load_rand(char *name)
	{
	char *p,*n;
	int last;
	long tot=0;

	for (;;)
		{
		last=0;
		for (p=name; ((*p != '\0') && (*p != LIST_SEPARATOR_CHAR)); p++);
		if (*p == '\0') last=1;
		*p='\0';
		n=name;
		name=p+1;
		if (*n == '\0') break;

		tot+=RAND_load_file(n,1);
		if (last) break;
		}
	return(tot);
	}
#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 BM	65	#include <openssl/bio.h>
	66	#include <openssl/rand.h>
	67	#include <openssl/err.h>
	68	#include <openssl/bn.h>
	69	#include <openssl/dsa.h>
	70	#include <openssl/x509.h>
	71	#include <openssl/pem.h>
d02b48c6 RE	72
	73	#define DEFBITS 512
	74	#undef PROG
	75	#define PROG gendsa_main
	76
d02b48c6	77	static long dsa_load_rand(char *names);
6b691a5c	78	int MAIN(int argc, char **argv)
d02b48c6 RE	79	{
	80	char buffer[200];
	81	DSA *dsa=NULL;
7f9b7b07	82	int ret=1;
d02b48c6 RE	83	char *outfile=NULL;
	84	char inrand=NULL,randfile,*dsaparams=NULL;
	85	BIO out=NULL,in=NULL;
7f9b7b07	86	EVP_CIPHER *enc=NULL;
d02b48c6 RE	87
	88	apps_startup();
	89
	90	if (bio_err == NULL)
	91	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	92	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6 RE	93
	94	argv++;
	95	argc--;
	96	for (;;)
	97	{
	98	if (argc <= 0) break;
	99	if (strcmp(*argv,"-out") == 0)
	100	{
	101	if (--argc < 1) goto bad;
	102	outfile= *(++argv);
	103	}
	104	else if (strcmp(*argv,"-rand") == 0)
	105	{
	106	if (--argc < 1) goto bad;
	107	inrand= *(++argv);
	108	}
	109	else if (strcmp(*argv,"-") == 0)
	110	goto bad;
	111	else if (dsaparams == NULL)
	112	{
	113	dsaparams= *argv;
	114	}
7f9b7b07 DSH	115	#ifndef NO_DES
	116	else if (strcmp(*argv,"-des") == 0)
	117	enc=EVP_des_cbc();
	118	else if (strcmp(*argv,"-des3") == 0)
	119	enc=EVP_des_ede3_cbc();
	120	#endif
	121	#ifndef NO_IDEA
	122	else if (strcmp(*argv,"-idea") == 0)
	123	enc=EVP_idea_cbc();
	124	#endif
d02b48c6 RE	125	else
	126	goto bad;
	127	argv++;
	128	argc--;
	129	}
	130
	131	if (dsaparams == NULL)
	132	{
	133	bad:
f2f351ce	134	BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n");
7f9b7b07 DSH	135	BIO_printf(bio_err," -out file - output the key to 'file'\n");
	136	#ifndef NO_DES
	137	BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n");
	138	BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
	139	#endif
	140	#ifndef NO_IDEA
	141	BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n");
	142	#endif
d02b48c6 RE	143	BIO_printf(bio_err," -rand file:file:...\n");
	144	BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
	145	BIO_printf(bio_err," the random number generator\n");
f2f351ce RE	146	BIO_printf(bio_err," dsaparam-file\n");
f2f351ce RE	147	BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n");
d02b48c6 RE	148	goto end;
	149	}
	150
	151	in=BIO_new(BIO_s_file());
7f9b7b07	152	if (!(BIO_read_filename(in,dsaparams)))
d02b48c6 RE	153	{
	154	perror(dsaparams);
	155	goto end;
	156	}
	157
	158	if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL)) == NULL)
	159	{
	160	BIO_printf(bio_err,"unable to load DSA parameter file\n");
	161	goto end;
	162	}
	163	BIO_free(in);
	164
	165	out=BIO_new(BIO_s_file());
	166	if (out == NULL) goto end;
	167
	168	if (outfile == NULL)
	169	BIO_set_fp(out,stdout,BIO_NOCLOSE);
	170	else
	171	{
	172	if (BIO_write_filename(out,outfile) <= 0)
	173	{
	174	perror(outfile);
	175	goto end;
	176	}
	177	}
	178
	179	randfile=RAND_file_name(buffer,200);
	180	if ((randfile == NULL)\|\| !RAND_load_file(randfile,1024L*1024L))
	181	BIO_printf(bio_err,"unable to load 'random state'\n");
	182
	183	if (inrand == NULL)
	184	BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
	185	else
	186	{
	187	BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
	188	dsa_load_rand(inrand));
	189	}
	190
7f9b7b07 DSH	191	BIO_printf(bio_err,"Generating DSA key, %d bits\n",
7f9b7b07 DSH	192	BN_num_bits(dsa->p));
d02b48c6 RE	193	if (!DSA_generate_key(dsa)) goto end;
	194
	195	if (randfile == NULL)
	196	BIO_printf(bio_err,"unable to write 'random state'\n");
	197	else
	198	RAND_write_file(randfile);
	199
7f9b7b07	200	if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL))
d02b48c6 RE	201	goto end;
	202	ret=0;
	203	end:
	204	if (ret != 0)
	205	ERR_print_errors(bio_err);
	206	if (out != NULL) BIO_free(out);
	207	if (dsa != NULL) DSA_free(dsa);
	208	EXIT(ret);
	209	}
	210
6b691a5c	211	static long dsa_load_rand(char *name)
d02b48c6 RE	212	{
	213	char p,n;
	214	int last;
	215	long tot=0;
	216
	217	for (;;)
	218	{
	219	last=0;
	220	for (p=name; ((p != '\0') && (p != LIST_SEPARATOR_CHAR)); p++);
	221	if (*p == '\0') last=1;
	222	*p='\0';
	223	n=name;
	224	name=p+1;
	225	if (*n == '\0') break;
	226
	227	tot+=RAND_load_file(n,1);
	228	if (last) break;
	229	}
	230	return(tot);
	231	}
f5d7a031	232	#endif