sl@0: /* apps/rsa.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: #ifndef OPENSSL_NO_RSA
sl@0: #include <stdio.h>
sl@0: #include <stdlib.h>
sl@0: #include <string.h>
sl@0: #include <time.h>
sl@0: #include "apps.h"
sl@0: #include <openssl/bio.h>
sl@0: #include <openssl/err.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/bn.h>
sl@0: 
sl@0: #undef PROG
sl@0: #define PROG	rsa_main
sl@0: 
sl@0: /* -inform arg	- input format - default PEM (one of DER, NET or PEM)
sl@0:  * -outform arg - output format - default PEM
sl@0:  * -in arg	- input file - default stdin
sl@0:  * -out arg	- output file - default stdout
sl@0:  * -des		- encrypt output if PEM format with DES in cbc mode
sl@0:  * -des3	- encrypt output if PEM format
sl@0:  * -idea	- encrypt output if PEM format
sl@0:  * -seed	- encrypt output if PEM format
sl@0:  * -aes128	- encrypt output if PEM format
sl@0:  * -aes192	- encrypt output if PEM format
sl@0:  * -aes256	- encrypt output if PEM format
sl@0:  * -text	- print a text version
sl@0:  * -modulus	- print the RSA key modulus
sl@0:  * -check	- verify key consistency
sl@0:  * -pubin	- Expect a public key in input file.
sl@0:  * -pubout	- Output a public key.
sl@0:  */
sl@0: 
sl@0: 
sl@0: int MAIN(int, char **);
sl@0: 
sl@0: int MAIN(int argc, char **argv)
sl@0: 	{
sl@0: 	ENGINE *e = NULL;
sl@0: 	int ret=1;
sl@0: 	RSA *rsa=NULL;
sl@0: 	int i,badops=0, sgckey=0;
sl@0: 	const EVP_CIPHER *enc=NULL;
sl@0: 	BIO *out=NULL;
sl@0: 	int informat,outformat,text=0,check=0,noout=0;
sl@0: 	int pubin = 0, pubout = 0;
sl@0: 	char *infile,*outfile,*prog;
sl@0: 	char *passargin = NULL, *passargout = NULL;
sl@0: 	char *passin = NULL, *passout = NULL;
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 	char *engine=NULL;
sl@0: #endif
sl@0: 	int modulus=0;
sl@0: 
sl@0: 	apps_startup();
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 end;
sl@0: 
sl@0: 	infile=NULL;
sl@0: 	outfile=NULL;
sl@0: 	informat=FORMAT_PEM;
sl@0: 	outformat=FORMAT_PEM;
sl@0: 
sl@0: 	prog=argv[0];
sl@0: 	argc--;
sl@0: 	argv++;
sl@0: 	while (argc >= 1)
sl@0: 		{
sl@0: 		if 	(strcmp(*argv,"-inform") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			informat=str2fmt(*(++argv));
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-outform") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			outformat=str2fmt(*(++argv));
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-in") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			infile= *(++argv);
sl@0: 			}
sl@0: 		else 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,"-passin") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			passargin= *(++argv);
sl@0: 			}
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: #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,"-sgckey") == 0)
sl@0: 			sgckey=1;
sl@0: 		else if (strcmp(*argv,"-pubin") == 0)
sl@0: 			pubin=1;
sl@0: 		else if (strcmp(*argv,"-pubout") == 0)
sl@0: 			pubout=1;
sl@0: 		else if (strcmp(*argv,"-noout") == 0)
sl@0: 			noout=1;
sl@0: 		else if (strcmp(*argv,"-text") == 0)
sl@0: 			text=1;
sl@0: 		else if (strcmp(*argv,"-modulus") == 0)
sl@0: 			modulus=1;
sl@0: 		else if (strcmp(*argv,"-check") == 0)
sl@0: 			check=1;
sl@0: 		else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"unknown option %s\n",*argv);
sl@0: 			badops=1;
sl@0: 			break;
sl@0: 			}
sl@0: 		argc--;
sl@0: 		argv++;
sl@0: 		}
sl@0: 
sl@0: 	if (badops)
sl@0: 		{
sl@0: bad:
sl@0: 		BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
sl@0: 		BIO_printf(bio_err,"where options are\n");
sl@0: 		BIO_printf(bio_err," -inform arg     input format - one of DER NET PEM\n");
sl@0: 		BIO_printf(bio_err," -outform arg    output format - one of DER NET PEM\n");
sl@0: 		BIO_printf(bio_err," -in arg         input file\n");
sl@0: 		BIO_printf(bio_err," -sgckey         Use IIS SGC key format\n");
sl@0: 		BIO_printf(bio_err," -passin arg     input file pass phrase source\n");
sl@0: 		BIO_printf(bio_err," -out arg        output file\n");
sl@0: 		BIO_printf(bio_err," -passout arg    output file pass phrase source\n");
sl@0: 		BIO_printf(bio_err," -des            encrypt PEM output with cbc des\n");
sl@0: 		BIO_printf(bio_err," -des3           encrypt PEM output with ede cbc des using 168 bit key\n");
sl@0: #ifndef OPENSSL_NO_IDEA
sl@0: 		BIO_printf(bio_err," -idea           encrypt PEM output with cbc idea\n");
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_SEED
sl@0: 		BIO_printf(bio_err," -seed           encrypt PEM output with cbc seed\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," -text           print the key in text\n");
sl@0: 		BIO_printf(bio_err," -noout          don't print key out\n");
sl@0: 		BIO_printf(bio_err," -modulus        print the RSA key modulus\n");
sl@0: 		BIO_printf(bio_err," -check          verify key consistency\n");
sl@0: 		BIO_printf(bio_err," -pubin          expect a public key in input file\n");
sl@0: 		BIO_printf(bio_err," -pubout         output a public key\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: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	ERR_load_crypto_strings();
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(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
sl@0: 		BIO_printf(bio_err, "Error getting passwords\n");
sl@0: 		goto end;
sl@0: 	}
sl@0: 
sl@0: 	if(check && pubin) {
sl@0: 		BIO_printf(bio_err, "Only private keys can be checked\n");
sl@0: 		goto end;
sl@0: 	}
sl@0: 
sl@0: 	out=BIO_new(BIO_s_file());
sl@0: 
sl@0: 	{
sl@0: 		EVP_PKEY	*pkey;
sl@0: 
sl@0: 		if (pubin)
sl@0: 			pkey = load_pubkey(bio_err, infile,
sl@0: 				(informat == FORMAT_NETSCAPE && sgckey ?
sl@0: 					FORMAT_IISSGC : informat), 1,
sl@0: 				passin, e, "Public Key");
sl@0: 		else
sl@0: 			pkey = load_key(bio_err, infile,
sl@0: 				(informat == FORMAT_NETSCAPE && sgckey ?
sl@0: 					FORMAT_IISSGC : informat), 1,
sl@0: 				passin, e, "Private Key");
sl@0: 
sl@0: 		if (pkey != NULL)
sl@0: 		rsa = pkey == NULL ? NULL : EVP_PKEY_get1_RSA(pkey);
sl@0: 		EVP_PKEY_free(pkey);
sl@0: 	}
sl@0: 
sl@0: 	if (rsa == NULL)
sl@0: 		{
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	if (outfile == NULL)
sl@0: 		{
sl@0: 		BIO_set_fp(out,stdout,BIO_NOCLOSE);
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 end;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if (text) 
sl@0: 		if (!RSA_print(out,rsa,0))
sl@0: 			{
sl@0: 			perror(outfile);
sl@0: 			ERR_print_errors(bio_err);
sl@0: 			goto end;
sl@0: 			}
sl@0: 
sl@0: 	if (modulus)
sl@0: 		{
sl@0: 		BIO_printf(out,"Modulus=");
sl@0: 		BN_print(out,rsa->n);
sl@0: 		BIO_printf(out,"\n");
sl@0: 		}
sl@0: 
sl@0: 	if (check)
sl@0: 		{
sl@0: 		int r = RSA_check_key(rsa);
sl@0: 
sl@0: 		if (r == 1)
sl@0: 			BIO_printf(out,"RSA key ok\n");
sl@0: 		else if (r == 0)
sl@0: 			{
sl@0: 			unsigned long err;
sl@0: 
sl@0: 			while ((err = ERR_peek_error()) != 0 &&
sl@0: 				ERR_GET_LIB(err) == ERR_LIB_RSA &&
sl@0: 				ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY &&
sl@0: 				ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE)
sl@0: 				{
sl@0: 				BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err));
sl@0: 				ERR_get_error(); /* remove e from error stack */
sl@0: 				}
sl@0: 			}
sl@0: 		
sl@0: 		if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */
sl@0: 			{
sl@0: 			ERR_print_errors(bio_err);
sl@0: 			goto end;
sl@0: 			}
sl@0: 		}
sl@0: 		
sl@0: 	if (noout)
sl@0: 		{
sl@0: 		ret = 0;
sl@0: 		goto end;
sl@0: 		}
sl@0: 	BIO_printf(bio_err,"writing RSA key\n");
sl@0: 	if 	(outformat == FORMAT_ASN1) {
sl@0: 		if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa);
sl@0: 		else i=i2d_RSAPrivateKey_bio(out,rsa);
sl@0: 	}
sl@0: #ifndef OPENSSL_NO_RC4
sl@0: 	else if (outformat == FORMAT_NETSCAPE)
sl@0: 		{
sl@0: 		unsigned char *p,*pp;
sl@0: 		int size;
sl@0: 
sl@0: 		i=1;
sl@0: 		size=i2d_RSA_NET(rsa,NULL,NULL, sgckey);
sl@0: 		if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL)
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"Memory allocation failure\n");
sl@0: 			goto end;
sl@0: 			}
sl@0: 		pp=p;
sl@0: 		i2d_RSA_NET(rsa,&p,NULL, sgckey);
sl@0: 		BIO_write(out,(char *)pp,size);
sl@0: 		OPENSSL_free(pp);
sl@0: 		}
sl@0: #endif
sl@0: 	else if (outformat == FORMAT_PEM) {
sl@0: 		if(pubout || pubin)
sl@0: 		    i=PEM_write_bio_RSA_PUBKEY(out,rsa);
sl@0: 		else i=PEM_write_bio_RSAPrivateKey(out,rsa,
sl@0: 						enc,NULL,0,NULL,passout);
sl@0: 	} else	{
sl@0: 		BIO_printf(bio_err,"bad output format specified for outfile\n");
sl@0: 		goto end;
sl@0: 		}
sl@0: 	if (!i)
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"unable to write key\n");
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		}
sl@0: 	else
sl@0: 		ret=0;
sl@0: end:
sl@0: 	if(out != NULL) BIO_free_all(out);
sl@0: 	if(rsa != NULL) RSA_free(rsa);
sl@0: 	if(passin) OPENSSL_free(passin);
sl@0: 	if(passout) OPENSSL_free(passout);
sl@0: 	apps_shutdown();
sl@0: 	OPENSSL_EXIT(ret);
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