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

/* apps/genrsa.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 OPENSSL_NO_RSA
#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/rsa.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/engine.h>

#define DEFBITS	512
#undef PROG
#define PROG genrsa_main

static void MS_CALLBACK genrsa_cb(int p, int n, void *arg);

int MAIN(int, char **);

int MAIN(int argc, char **argv)
	{
	ENGINE *e = NULL;
	int ret=1;
	RSA *rsa=NULL;
	int i,num=DEFBITS;
	long l;
	EVP_CIPHER *enc=NULL;
	unsigned long f4=RSA_F4;
	char *outfile=NULL;
	char *passargout = NULL, *passout = NULL;
	char *engine=NULL;
	char *inrand=NULL;
	BIO *out=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);
	if ((out=BIO_new(BIO_s_file())) == NULL)
		{
		BIO_printf(bio_err,"unable to create BIO for output\n");
		goto err;
		}

	argv++;
	argc--;
	for (;;)
		{
		if (argc <= 0) break;
		if (strcmp(*argv,"-out") == 0)
			{
			if (--argc < 1) goto bad;
			outfile= *(++argv);
			}
		else if (strcmp(*argv,"-3") == 0)
			f4=3;
		else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0)
			f4=RSA_F4;
		else if (strcmp(*argv,"-engine") == 0)
			{
			if (--argc < 1) goto bad;
			engine= *(++argv);
			}
		else if (strcmp(*argv,"-rand") == 0)
			{
			if (--argc < 1) goto bad;
			inrand= *(++argv);
			}
#ifndef OPENSSL_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 OPENSSL_NO_IDEA
		else if (strcmp(*argv,"-idea") == 0)
			enc=EVP_idea_cbc();
#endif
		else if (strcmp(*argv,"-passout") == 0)
			{
			if (--argc < 1) goto bad;
			passargout= *(++argv);
			}
		else
			break;
		argv++;
		argc--;
		}
	if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
		{
bad:
		BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n");
		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");
#ifndef OPENSSL_NO_IDEA
		BIO_printf(bio_err," -idea           encrypt the generated key with IDEA in cbc mode\n");
#endif
		BIO_printf(bio_err," -out file       output the key to 'file\n");
		BIO_printf(bio_err," -passout arg    output file pass phrase source\n");
		BIO_printf(bio_err," -f4             use F4 (0x10001) for the E value\n");
		BIO_printf(bio_err," -3              use 3 for the E value\n");
		BIO_printf(bio_err," -engine e       use engine e, possibly a hardware device.\n");
		BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
		BIO_printf(bio_err,"                 load the file (or the files in the directory) into\n");
		BIO_printf(bio_err,"                 the random number generator\n");
		goto err;
		}
		
	ERR_load_crypto_strings();

	if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
		BIO_printf(bio_err, "Error getting password\n");
		goto err;
	}

	if (engine != NULL)
		{
		if((e = ENGINE_by_id(engine)) == NULL)
			{
			BIO_printf(bio_err,"invalid engine \"%s\"\n",
				engine);
			goto err;
			}
		if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
			{
			BIO_printf(bio_err,"can't use that engine\n");
			goto err;
			}
		BIO_printf(bio_err,"engine \"%s\" set.\n", engine);
		/* Free our "structural" reference. */
		ENGINE_free(e);
		}

	if (outfile == NULL)
		{
		BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifdef VMS
		{
		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
		out = BIO_push(tmpbio, out);
		}
#endif
		}
	else
		{
		if (BIO_write_filename(out,outfile) <= 0)
			{
			perror(outfile);
			goto err;
			}
		}

	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
		&& !RAND_status())
		{
		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 RSA private key, %d bit long modulus\n",
		num);
	rsa=RSA_generate_key(num,f4,genrsa_cb,bio_err);
		
	app_RAND_write_file(NULL, bio_err);

	if (rsa == NULL) goto err;
	
	/* We need to do the following for when the base number size is <
	 * long, esp windows 3.1 :-(. */
	l=0L;
	for (i=0; i<rsa->e->top; i++)
		{
#ifndef SIXTY_FOUR_BIT
		l<<=BN_BITS4;
		l<<=BN_BITS4;
#endif
		l+=rsa->e->d[i];
		}
	BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l);
	if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,NULL, passout))
		goto err;

	ret=0;
err:
	if (rsa != NULL) RSA_free(rsa);
	if (out != NULL) BIO_free_all(out);
	if(passout) OPENSSL_free(passout);
	if (ret != 0)
		ERR_print_errors(bio_err);
	EXIT(ret);
	}

static void MS_CALLBACK genrsa_cb(int p, int n, void *arg)
	{
	char c='*';

	if (p == 0) c='.';
	if (p == 1) c='+';
	if (p == 2) c='*';
	if (p == 3) c='\n';
	BIO_write((BIO *)arg,&c,1);
	(void)BIO_flush((BIO *)arg);
#ifdef LINT
	p=n;
#endif
	}
#else /* !OPENSSL_NO_RSA */

# if PEDANTIC
static void *dummy=&dummy;
# endif

#endif
Commit	Line	Data
d02b48c6	1	/* apps/genrsa.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
cf1b7d96	59	#ifndef OPENSSL_NO_RSA
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/rsa.h>
	69	#include <openssl/evp.h>
	70	#include <openssl/x509.h>
	71	#include <openssl/pem.h>
5270e702	72	#include <openssl/engine.h>
d02b48c6 RE	73
	74	#define DEFBITS 512
	75	#undef PROG
	76	#define PROG genrsa_main
	77
b4f76582	78	static void MS_CALLBACK genrsa_cb(int p, int n, void *arg);
667ac4ec RE	79
	80	int MAIN(int, char **);
	81
6b691a5c	82	int MAIN(int argc, char **argv)
d02b48c6	83	{
5270e702	84	ENGINE *e = NULL;
d02b48c6	85	int ret=1;
d02b48c6 RE	86	RSA *rsa=NULL;
d02b48c6 RE	87	int i,num=DEFBITS;
a31011e8	88	long l;
d02b48c6 RE	89	EVP_CIPHER *enc=NULL;
	90	unsigned long f4=RSA_F4;
	91	char *outfile=NULL;
a3fe382e	92	char passargout = NULL, passout = NULL;
5270e702	93	char *engine=NULL;
f365611c	94	char *inrand=NULL;
d02b48c6 RE	95	BIO *out=NULL;
	96
	97	apps_startup();
	98
	99	if (bio_err == NULL)
	100	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	101	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6 RE	102	if ((out=BIO_new(BIO_s_file())) == NULL)
d02b48c6 RE	103	{
657e60fa	104	BIO_printf(bio_err,"unable to create BIO for output\n");
d02b48c6 RE	105	goto err;
	106	}
	107
	108	argv++;
	109	argc--;
	110	for (;;)
	111	{
	112	if (argc <= 0) break;
	113	if (strcmp(*argv,"-out") == 0)
	114	{
	115	if (--argc < 1) goto bad;
	116	outfile= *(++argv);
	117	}
	118	else if (strcmp(*argv,"-3") == 0)
	119	f4=3;
f1d92d94	120	else if (strcmp(argv,"-F4") == 0 \|\| strcmp(argv,"-f4") == 0)
d02b48c6	121	f4=RSA_F4;
5270e702 RL	122	else if (strcmp(*argv,"-engine") == 0)
	123	{
	124	if (--argc < 1) goto bad;
	125	engine= *(++argv);
	126	}
d02b48c6 RE	127	else if (strcmp(*argv,"-rand") == 0)
	128	{
	129	if (--argc < 1) goto bad;
	130	inrand= *(++argv);
	131	}
cf1b7d96	132	#ifndef OPENSSL_NO_DES
d02b48c6 RE	133	else if (strcmp(*argv,"-des") == 0)
	134	enc=EVP_des_cbc();
	135	else if (strcmp(*argv,"-des3") == 0)
	136	enc=EVP_des_ede3_cbc();
	137	#endif
cf1b7d96	138	#ifndef OPENSSL_NO_IDEA
d02b48c6 RE	139	else if (strcmp(*argv,"-idea") == 0)
	140	enc=EVP_idea_cbc();
	141	#endif
f07fb9b2 DSH	142	else if (strcmp(*argv,"-passout") == 0)
	143	{
	144	if (--argc < 1) goto bad;
a3fe382e	145	passargout= *(++argv);
f07fb9b2	146	}
d02b48c6 RE	147	else
	148	break;
	149	argv++;
	150	argc--;
	151	}
	152	if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) \|\| (num < 0)))
	153	{
	154	bad:
	155	BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n");
f07fb9b2 DSH	156	BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n");
f07fb9b2 DSH	157	BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
cf1b7d96	158	#ifndef OPENSSL_NO_IDEA
f07fb9b2	159	BIO_printf(bio_err," -idea encrypt the generated key with IDEA in cbc mode\n");
d02b48c6	160	#endif
f07fb9b2	161	BIO_printf(bio_err," -out file output the key to 'file\n");
a3fe382e	162	BIO_printf(bio_err," -passout arg output file pass phrase source\n");
f07fb9b2 DSH	163	BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n");
f07fb9b2 DSH	164	BIO_printf(bio_err," -3 use 3 for the E value\n");
5270e702	165	BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
afbd0746	166	BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
f07fb9b2 DSH	167	BIO_printf(bio_err," load the file (or the files in the directory) into\n");
f07fb9b2 DSH	168	BIO_printf(bio_err," the random number generator\n");
d02b48c6 RE	169	goto err;
	170	}
	171
	172	ERR_load_crypto_strings();
a3fe382e DSH	173
	174	if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
	175	BIO_printf(bio_err, "Error getting password\n");
	176	goto err;
	177	}
	178
5270e702 RL	179	if (engine != NULL)
	180	{
	181	if((e = ENGINE_by_id(engine)) == NULL)
	182	{
	183	BIO_printf(bio_err,"invalid engine \"%s\"\n",
	184	engine);
	185	goto err;
	186	}
	187	if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
	188	{
	189	BIO_printf(bio_err,"can't use that engine\n");
	190	goto err;
	191	}
	192	BIO_printf(bio_err,"engine \"%s\" set.\n", engine);
	193	/* Free our "structural" reference. */
	194	ENGINE_free(e);
	195	}
	196
d02b48c6	197	if (outfile == NULL)
645749ef	198	{
d02b48c6	199	BIO_set_fp(out,stdout,BIO_NOCLOSE);
645749ef RL	200	#ifdef VMS
	201	{
	202	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	203	out = BIO_push(tmpbio, out);
	204	}
	205	#endif
	206	}
d02b48c6 RE	207	else
	208	{
	209	if (BIO_write_filename(out,outfile) <= 0)
	210	{
	211	perror(outfile);
	212	goto err;
	213	}
	214	}
	215
5270e702 RL	216	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
5270e702 RL	217	&& !RAND_status())
d02b48c6	218	{
a31011e8	219	BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
d02b48c6	220	}
a31011e8 BM	221	if (inrand != NULL)
	222	BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
	223	app_RAND_load_files(inrand));
d02b48c6 RE	224
	225	BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n",
	226	num);
b4f76582	227	rsa=RSA_generate_key(num,f4,genrsa_cb,bio_err);
d02b48c6	228
a31011e8	229	app_RAND_write_file(NULL, bio_err);
d02b48c6 RE	230
	231	if (rsa == NULL) goto err;
	232
657e60fa	233	/* We need to do the following for when the base number size is <
d02b48c6 RE	234	* long, esp windows 3.1 :-(. */
	235	l=0L;
	236	for (i=0; i<rsa->e->top; i++)
	237	{
	238	#ifndef SIXTY_FOUR_BIT
	239	l<<=BN_BITS4;
	240	l<<=BN_BITS4;
	241	#endif
	242	l+=rsa->e->d[i];
	243	}
	244	BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l);
a3fe382e	245	if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,NULL, passout))
d02b48c6 RE	246	goto err;
	247
	248	ret=0;
	249	err:
	250	if (rsa != NULL) RSA_free(rsa);
645749ef	251	if (out != NULL) BIO_free_all(out);
26a3a48d	252	if(passout) OPENSSL_free(passout);
d02b48c6 RE	253	if (ret != 0)
	254	ERR_print_errors(bio_err);
	255	EXIT(ret);
	256	}
	257
b4f76582	258	static void MS_CALLBACK genrsa_cb(int p, int n, void *arg)
d02b48c6 RE	259	{
	260	char c='*';
	261
	262	if (p == 0) c='.';
	263	if (p == 1) c='+';
	264	if (p == 2) c='*';
	265	if (p == 3) c='\n';
58964a49	266	BIO_write((BIO *)arg,&c,1);
d58d092b	267	(void)BIO_flush((BIO *)arg);
d02b48c6 RE	268	#ifdef LINT
	269	p=n;
	270	#endif
	271	}
cf1b7d96	272	#else /* !OPENSSL_NO_RSA */
752d706a BL	273
	274	# if PEDANTIC
	275	static void *dummy=&dummy;
	276	# endif
	277
f5d7a031	278	#endif