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

/* apps/dsa.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.]
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "apps.h"
#include "bio.h"
#include "err.h"
#include "dsa.h"
#include "evp.h"
#include "x509.h"
#include "pem.h"

#undef PROG
#define PROG	dsa_main

/* -inform arg	- input format - default PEM (one of DER, NET or PEM)
 * -outform arg - output format - default PEM
 * -in arg	- input file - default stdin
 * -out arg	- output file - default stdout
 * -des		- encrypt output if PEM format with DES in cbc mode
 * -des3	- encrypt output if PEM format
 * -idea	- encrypt output if PEM format
 * -text	- print a text version
 * -modulus	- print the DSA public key
 */

int MAIN(int argc, char **argv)
	{
	int ret=1;
	DSA *dsa=NULL;
	int i,badops=0;
	const EVP_CIPHER *enc=NULL;
	BIO *in=NULL,*out=NULL;
	int informat,outformat,text=0,noout=0;
	char *infile,*outfile,*prog;
	int modulus=0;

	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);

	infile=NULL;
	outfile=NULL;
	informat=FORMAT_PEM;
	outformat=FORMAT_PEM;

	prog=argv[0];
	argc--;
	argv++;
	while (argc >= 1)
		{
		if 	(strcmp(*argv,"-inform") == 0)
			{
			if (--argc < 1) goto bad;
			informat=str2fmt(*(++argv));
			}
		else if (strcmp(*argv,"-outform") == 0)
			{
			if (--argc < 1) goto bad;
			outformat=str2fmt(*(++argv));
			}
		else if (strcmp(*argv,"-in") == 0)
			{
			if (--argc < 1) goto bad;
			infile= *(++argv);
			}
		else if (strcmp(*argv,"-out") == 0)
			{
			if (--argc < 1) goto bad;
			outfile= *(++argv);
			}
		else if (strcmp(*argv,"-noout") == 0)
			noout=1;
		else if (strcmp(*argv,"-text") == 0)
			text=1;
		else if (strcmp(*argv,"-modulus") == 0)
			modulus=1;
		else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
			{
			BIO_printf(bio_err,"unknown option %s\n",*argv);
			badops=1;
			break;
			}
		argc--;
		argv++;
		}

	if (badops)
		{
bad:
		BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
		BIO_printf(bio_err,"where options are\n");
		BIO_printf(bio_err," -inform arg   input format - one of DER NET PEM\n");
		BIO_printf(bio_err," -outform arg  output format - one of DER NET PEM\n");
		BIO_printf(bio_err," -in arg       input file\n");
		BIO_printf(bio_err," -out arg      output file\n");
		BIO_printf(bio_err," -des          encrypt PEM output with cbc des\n");
		BIO_printf(bio_err," -des3         encrypt PEM output with ede cbc des using 168 bit key\n");
#ifndef NO_IDEA
		BIO_printf(bio_err," -idea         encrypt PEM output with cbc idea\n");
#endif
		BIO_printf(bio_err," -text         print the key in text\n");
		BIO_printf(bio_err," -noout        don't print key out\n");
		BIO_printf(bio_err," -modulus      print the DSA public value\n");
		goto end;
		}

	ERR_load_crypto_strings();

	in=BIO_new(BIO_s_file());
	out=BIO_new(BIO_s_file());
	if ((in == NULL) || (out == NULL))
		{
		ERR_print_errors(bio_err);
		goto end;
		}

	if (infile == NULL)
		BIO_set_fp(in,stdin,BIO_NOCLOSE);
	else
		{
		if (BIO_read_filename(in,infile) <= 0)
			{
			perror(infile);
			goto end;
			}
		}

	BIO_printf(bio_err,"read DSA private key\n");
	if	(informat == FORMAT_ASN1)
		dsa=d2i_DSAPrivateKey_bio(in,NULL);
	else if (informat == FORMAT_PEM)
		dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL);
	else
		{
		BIO_printf(bio_err,"bad input format specified for key\n");
		goto end;
		}
	if (dsa == NULL)
		{
		BIO_printf(bio_err,"unable to load Private Key\n");
		ERR_print_errors(bio_err);
		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 (text) 
		if (!DSA_print(out,dsa,0))
			{
			perror(outfile);
			ERR_print_errors(bio_err);
			goto end;
			}

	if (modulus)
		{
		fprintf(stdout,"Public Key=");
		BN_print(out,dsa->pub_key);
		fprintf(stdout,"\n");
		}

	if (noout) goto end;
	BIO_printf(bio_err,"writing DSA private key\n");
	if 	(outformat == FORMAT_ASN1)
		i=i2d_DSAPrivateKey_bio(out,dsa);
	else if (outformat == FORMAT_PEM)
		i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL);
	else	{
		BIO_printf(bio_err,"bad output format specified for outfile\n");
		goto end;
		}
	if (!i)
		{
		BIO_printf(bio_err,"unable to write private key\n");
		ERR_print_errors(bio_err);
		}
	else
		ret=0;
end:
	if (in != NULL) BIO_free(in);
	if (out != NULL) BIO_free(out);
	if (dsa != NULL) DSA_free(dsa);
	EXIT(ret);
	}
Commit	Line	Data
d02b48c6	1	/* apps/dsa.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
	59	#include <stdio.h>
	60	#include <stdlib.h>
	61	#include <string.h>
	62	#include <time.h>
	63	#include "apps.h"
	64	#include "bio.h"
	65	#include "err.h"
	66	#include "dsa.h"
67	#include "evp.h"
68	#include "x509.h"
69	#include "pem.h"
70
71	#undef PROG
72	#define PROG dsa_main
73
74	/* -inform arg - input format - default PEM (one of DER, NET or PEM)
75	* -outform arg - output format - default PEM
76	* -in arg - input file - default stdin
77	* -out arg - output file - default stdout
78	* -des - encrypt output if PEM format with DES in cbc mode
79	* -des3 - encrypt output if PEM format
80	* -idea - encrypt output if PEM format
81	* -text - print a text version
82	* -modulus - print the DSA public key
83	*/
84
6b691a5c	85	int MAIN(int argc, char **argv)
d02b48c6 RE	86	{
	87	int ret=1;
	88	DSA *dsa=NULL;
	89	int i,badops=0;
e778802f	90	const EVP_CIPHER *enc=NULL;
d02b48c6 RE	91	BIO in=NULL,out=NULL;
	92	int informat,outformat,text=0,noout=0;
	93	char infile,outfile,*prog;
	94	int modulus=0;
	95
	96	apps_startup();
	97
	98	if (bio_err == NULL)
	99	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	100	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6 RE	101
	102	infile=NULL;
	103	outfile=NULL;
	104	informat=FORMAT_PEM;
	105	outformat=FORMAT_PEM;
	106
	107	prog=argv[0];
	108	argc--;
	109	argv++;
	110	while (argc >= 1)
	111	{
	112	if (strcmp(*argv,"-inform") == 0)
	113	{
	114	if (--argc < 1) goto bad;
	115	informat=str2fmt(*(++argv));
	116	}
	117	else if (strcmp(*argv,"-outform") == 0)
	118	{
	119	if (--argc < 1) goto bad;
	120	outformat=str2fmt(*(++argv));
	121	}
	122	else if (strcmp(*argv,"-in") == 0)
	123	{
	124	if (--argc < 1) goto bad;
	125	infile= *(++argv);
	126	}
	127	else if (strcmp(*argv,"-out") == 0)
	128	{
	129	if (--argc < 1) goto bad;
	130	outfile= *(++argv);
	131	}
	132	else if (strcmp(*argv,"-noout") == 0)
	133	noout=1;
	134	else if (strcmp(*argv,"-text") == 0)
	135	text=1;
	136	else if (strcmp(*argv,"-modulus") == 0)
	137	modulus=1;
	138	else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
	139	{
	140	BIO_printf(bio_err,"unknown option %s\n",*argv);
	141	badops=1;
	142	break;
	143	}
	144	argc--;
	145	argv++;
	146	}
	147
	148	if (badops)
	149	{
	150	bad:
	151	BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
	152	BIO_printf(bio_err,"where options are\n");
	153	BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n");
	154	BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n");
9fe84296	155	BIO_printf(bio_err," -in arg input file\n");
d02b48c6 RE	156	BIO_printf(bio_err," -out arg output file\n");
	157	BIO_printf(bio_err," -des encrypt PEM output with cbc des\n");
	158	BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n");
	159	#ifndef NO_IDEA
	160	BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n");
	161	#endif
	162	BIO_printf(bio_err," -text print the key in text\n");
	163	BIO_printf(bio_err," -noout don't print key out\n");
	164	BIO_printf(bio_err," -modulus print the DSA public value\n");
	165	goto end;
	166	}
	167
	168	ERR_load_crypto_strings();
	169
	170	in=BIO_new(BIO_s_file());
	171	out=BIO_new(BIO_s_file());
	172	if ((in == NULL) \|\| (out == NULL))
	173	{
	174	ERR_print_errors(bio_err);
	175	goto end;
	176	}
	177
	178	if (infile == NULL)
	179	BIO_set_fp(in,stdin,BIO_NOCLOSE);
	180	else
	181	{
	182	if (BIO_read_filename(in,infile) <= 0)
	183	{
	184	perror(infile);
	185	goto end;
	186	}
	187	}
	188
	189	BIO_printf(bio_err,"read DSA private key\n");
	190	if (informat == FORMAT_ASN1)
	191	dsa=d2i_DSAPrivateKey_bio(in,NULL);
	192	else if (informat == FORMAT_PEM)
	193	dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL);
	194	else
	195	{
	196	BIO_printf(bio_err,"bad input format specified for key\n");
	197	goto end;
	198	}
	199	if (dsa == NULL)
	200	{
	201	BIO_printf(bio_err,"unable to load Private Key\n");
	202	ERR_print_errors(bio_err);
	203	goto end;
	204	}
	205
	206	if (outfile == NULL)
	207	BIO_set_fp(out,stdout,BIO_NOCLOSE);
	208	else
	209	{
	210	if (BIO_write_filename(out,outfile) <= 0)
	211	{
	212	perror(outfile);
	213	goto end;
	214	}
	215	}
	216
	217	if (text)
	218	if (!DSA_print(out,dsa,0))
	219	{
220	perror(outfile);
221	ERR_print_errors(bio_err);
222	goto end;
223	}
224
225	if (modulus)
226	{
227	fprintf(stdout,"Public Key=");
228	BN_print(out,dsa->pub_key);
229	fprintf(stdout,"\n");
230	}
231
232	if (noout) goto end;
233	BIO_printf(bio_err,"writing DSA private key\n");
234	if (outformat == FORMAT_ASN1)
235	i=i2d_DSAPrivateKey_bio(out,dsa);
236	else if (outformat == FORMAT_PEM)
237	i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL);
238	else {
239	BIO_printf(bio_err,"bad output format specified for outfile\n");
240	goto end;
241	}
242	if (!i)
243	{
244	BIO_printf(bio_err,"unable to write private key\n");
245	ERR_print_errors(bio_err);
246	}
247	else
248	ret=0;
249	end:
250	if (in != NULL) BIO_free(in);
251	if (out != NULL) BIO_free(out);
252	if (dsa != NULL) DSA_free(dsa);
253	EXIT(ret);
254	}
255