sl@0: /* apps/genrsa.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: 
sl@0: #include <openssl/opensslconf.h>
sl@0: /* Until the key-gen callbacks are modified to use newer prototypes, we allow
sl@0:  * deprecated functions for openssl-internal code */
sl@0: #ifdef OPENSSL_NO_DEPRECATED
sl@0: #undef OPENSSL_NO_DEPRECATED
sl@0: #endif
sl@0: 
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: #include <stdio.h>
sl@0: #include <string.h>
sl@0: #include <sys/types.h>
sl@0: #include <sys/stat.h>
sl@0: #include "apps.h"
sl@0: #include <openssl/bio.h>
sl@0: #include <openssl/err.h>
sl@0: #include <openssl/bn.h>
sl@0: #include <openssl/rsa.h>
sl@0: #include <openssl/evp.h>
sl@0: #include <openssl/x509.h>
sl@0: #include <openssl/pem.h>
sl@0: #include <openssl/rand.h>
sl@0: 
sl@0: #define DEFBITS	512
sl@0: #undef PROG
sl@0: #define PROG genrsa_main
sl@0: 
sl@0: static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb);
sl@0: 
sl@0: 
sl@0: int MAIN(int, char **);
sl@0: 
sl@0: int MAIN(int argc, char **argv)
sl@0: 	{
sl@0: 	BN_GENCB cb;
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 	ENGINE *e = NULL;
sl@0: #endif
sl@0: 	int ret=1;
sl@0: 	int i,num=DEFBITS;
sl@0: 	long l;
sl@0: 	const EVP_CIPHER *enc=NULL;
sl@0: 	unsigned long f4=RSA_F4;
sl@0: 	char *outfile=NULL;
sl@0: 	char *passargout = NULL, *passout = NULL;
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 	char *engine=NULL;
sl@0: #endif
sl@0: 	char *inrand=NULL;
sl@0: 	BIO *out=NULL;
sl@0: 	BIGNUM *bn = BN_new();
sl@0: 	RSA *rsa = RSA_new();
sl@0: 
sl@0: 	if(!bn || !rsa) goto err;
sl@0: 
sl@0: 	apps_startup();
sl@0: 	BN_GENCB_set(&cb, genrsa_cb, bio_err);
sl@0: 
sl@0: 	if (bio_err == NULL)
sl@0: 		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
sl@0: 			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
sl@0: 	if (!load_config(bio_err, NULL))
sl@0: 		goto err;
sl@0: 	if ((out=BIO_new(BIO_s_file())) == NULL)
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"unable to create BIO for output\n");
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	argv++;
sl@0: 	argc--;
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		if (argc <= 0) break;
sl@0: 		if (strcmp(*argv,"-out") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			outfile= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-3") == 0)
sl@0: 			f4=3;
sl@0: 		else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0)
sl@0: 			f4=RSA_F4;
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 		else if (strcmp(*argv,"-engine") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			engine= *(++argv);
sl@0: 			}
sl@0: #endif
sl@0: 		else if (strcmp(*argv,"-rand") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			inrand= *(++argv);
sl@0: 			}
sl@0: #ifndef OPENSSL_NO_DES
sl@0: 		else if (strcmp(*argv,"-des") == 0)
sl@0: 			enc=EVP_des_cbc();
sl@0: 		else if (strcmp(*argv,"-des3") == 0)
sl@0: 			enc=EVP_des_ede3_cbc();
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_IDEA
sl@0: 		else if (strcmp(*argv,"-idea") == 0)
sl@0: 			enc=EVP_idea_cbc();
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_AES
sl@0: 		else if (strcmp(*argv,"-aes128") == 0)
sl@0: 			enc=EVP_aes_128_cbc();
sl@0: 		else if (strcmp(*argv,"-aes192") == 0)
sl@0: 			enc=EVP_aes_192_cbc();
sl@0: 		else if (strcmp(*argv,"-aes256") == 0)
sl@0: 			enc=EVP_aes_256_cbc();
sl@0: #endif
sl@0: 		else if (strcmp(*argv,"-passout") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			passargout= *(++argv);
sl@0: 			}
sl@0: 		else
sl@0: 			break;
sl@0: 		argv++;
sl@0: 		argc--;
sl@0: 		}
sl@0: 	if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
sl@0: 		{
sl@0: bad:
sl@0: 		BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n");
sl@0: 		BIO_printf(bio_err," -des            encrypt the generated key with DES in cbc mode\n");
sl@0: 		BIO_printf(bio_err," -des3           encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
sl@0: #ifndef OPENSSL_NO_IDEA
sl@0: 		BIO_printf(bio_err," -idea           encrypt the generated key with IDEA in cbc mode\n");
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_AES
sl@0: 		BIO_printf(bio_err," -aes128, -aes192, -aes256\n");
sl@0: 		BIO_printf(bio_err,"                 encrypt PEM output with cbc aes\n");
sl@0: #endif
sl@0: 		BIO_printf(bio_err," -out file       output the key to 'file\n");
sl@0: 		BIO_printf(bio_err," -passout arg    output file pass phrase source\n");
sl@0: 		BIO_printf(bio_err," -f4             use F4 (0x10001) for the E value\n");
sl@0: 		BIO_printf(bio_err," -3              use 3 for the E value\n");
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 		BIO_printf(bio_err," -engine e       use engine e, possibly a hardware device.\n");
sl@0: #endif
sl@0: 		BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
sl@0: 		BIO_printf(bio_err,"                 load the file (or the files in the directory) into\n");
sl@0: 		BIO_printf(bio_err,"                 the random number generator\n");
sl@0: 		goto err;
sl@0: 		}
sl@0: 		
sl@0: 	ERR_load_crypto_strings();
sl@0: 
sl@0: 	if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
sl@0: 		BIO_printf(bio_err, "Error getting password\n");
sl@0: 		goto err;
sl@0: 	}
sl@0: 
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0:         e = setup_engine(bio_err, engine, 0);
sl@0: #endif
sl@0: 
sl@0: 	if (outfile == NULL)
sl@0: 		{
sl@0: 		BIO_set_fp(out,stdout,BIO_NOCLOSE);
sl@0: 
sl@0: #ifdef OPENSSL_SYS_VMS
sl@0: 		{
sl@0: 		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
sl@0: 		out = BIO_push(tmpbio, out);
sl@0: 		}
sl@0: #endif
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		if (BIO_write_filename(out,outfile) <= 0)
sl@0: 			{
sl@0: 			perror(outfile);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
sl@0: 		&& !RAND_status())
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
sl@0: 		}
sl@0: 	if (inrand != NULL)
sl@0: 		BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
sl@0: 			app_RAND_load_files(inrand));
sl@0: 
sl@0: 	BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n",
sl@0: 		num);
sl@0: 
sl@0: 	if(!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb))
sl@0: 		goto err;
sl@0: 		
sl@0: 	app_RAND_write_file(NULL, bio_err);
sl@0: 
sl@0: 	/* We need to do the following for when the base number size is <
sl@0: 	 * long, esp windows 3.1 :-(. */
sl@0: 	l=0L;
sl@0: 	for (i=0; i<rsa->e->top; i++)
sl@0: 		{
sl@0: #ifndef SIXTY_FOUR_BIT
sl@0: 		l<<=BN_BITS4;
sl@0: 		l<<=BN_BITS4;
sl@0: #endif
sl@0: 		l+=rsa->e->d[i];
sl@0: 		}
sl@0: 	BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l);
sl@0: 	{
sl@0: 	PW_CB_DATA cb_data;
sl@0: 	cb_data.password = passout;
sl@0: 	cb_data.prompt_info = outfile;
sl@0: 	if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,
sl@0: 		(pem_password_cb *)password_callback,&cb_data))
sl@0: 		goto err;
sl@0: 	}
sl@0: 
sl@0: 	ret=0;
sl@0: err:
sl@0: 	if (bn) BN_free(bn);
sl@0: 	if (rsa) RSA_free(rsa);
sl@0: 	if (out) BIO_free_all(out);
sl@0: 	if(passout) OPENSSL_free(passout);
sl@0: 	if (ret != 0)
sl@0: 		ERR_print_errors(bio_err);
sl@0: 	apps_shutdown();
sl@0: 	OPENSSL_EXIT(ret);
sl@0: 	}
sl@0: 
sl@0: static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb)
sl@0: 	{
sl@0: 	char c='*';
sl@0: 
sl@0: 	if (p == 0) c='.';
sl@0: 	if (p == 1) c='+';
sl@0: 	if (p == 2) c='*';
sl@0: 	if (p == 3) c='\n';
sl@0: 	BIO_write(cb->arg,&c,1);
sl@0: 	(void)BIO_flush(cb->arg);
sl@0: #ifdef LINT
sl@0: 	p=n;
sl@0: #endif
sl@0: 	return 1;
sl@0: 	}
sl@0: #else /* !OPENSSL_NO_RSA */
sl@0: 
sl@0: # if PEDANTIC
sl@0: static void *dummy=&dummy;
sl@0: # endif
sl@0: 
sl@0: #endif