src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/ssl/src/apps/rsautl.c - public/gem5-resources - Git at Google

 /* rsautl.c */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2000.
  */
 /* ====================================================================
  * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
  *
  * 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 above 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 acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  *
  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  *    endorse or promote products derived from this software without
  *    prior written permission. For written permission, please contact
  *    licensing@OpenSSL.org.
  *
  * 5. Products derived from this software may not be called "OpenSSL"
  *    nor may "OpenSSL" appear in their names without prior written
  *    permission of the OpenSSL Project.
  *
  * 6. Redistributions of any form whatsoever must retain the following
  *    acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  *
  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  * EXPRESSED 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 OpenSSL PROJECT OR
  * ITS 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.
  * ====================================================================
  *
  * This product includes cryptographic software written by Eric Young
  * (eay@cryptsoft.com).  This product includes software written by Tim
  * Hudson (tjh@cryptsoft.com).
  *
  */

 #include <openssl/opensslconf.h>
 #ifndef OPENSSL_NO_RSA

 #include "apps.h"
 #include <string.h>
 #include <openssl/err.h>
 #include <openssl/pem.h>
 #include <openssl/rsa.h>

 #define RSA_SIGN 	1
 #define RSA_VERIFY 	2
 #define RSA_ENCRYPT 	3
 #define RSA_DECRYPT 	4

 #define KEY_PRIVKEY	1
 #define KEY_PUBKEY	2
 #define KEY_CERT	3

 static void usage(void);

 #undef PROG

 #define PROG rsautl_main

 int MAIN(int argc, char **);

 int MAIN(int argc, char **argv)
 {
 	ENGINE *e = NULL;
 	BIO *in = NULL, *out = NULL;
 	char *infile = NULL, *outfile = NULL;
 #ifndef OPENSSL_NO_ENGINE
 	char *engine = NULL;
 #endif
 	char *keyfile = NULL;
 	char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
 	int keyform = FORMAT_PEM;
 	char need_priv = 0, badarg = 0, rev = 0;
 	char hexdump = 0, asn1parse = 0;
 	X509 *x;
 	EVP_PKEY *pkey = NULL;
 	RSA *rsa = NULL;
 	unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
 	char *passargin = NULL, *passin = NULL;
 	int rsa_inlen, rsa_outlen = 0;
 	int keysize;

 	int ret = 1;

 	argc--;
 	argv++;

 	if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);

 	if (!load_config(bio_err, NULL))
 		goto end;
 	ERR_load_crypto_strings();
 	OpenSSL_add_all_algorithms();
 	pad = RSA_PKCS1_PADDING;

 	while(argc >= 1)
 	{
 		if (!strcmp(*argv,"-in")) {
 			if (--argc < 1)
 				badarg = 1;
 			else
 				infile= *(++argv);
 		} else if (!strcmp(*argv,"-out")) {
 			if (--argc < 1)
 				badarg = 1;
 			else
 				outfile= *(++argv);
 		} else if(!strcmp(*argv, "-inkey")) {
 			if (--argc < 1)
 				badarg = 1;
 			else
 				keyfile = *(++argv);
 		} else if (!strcmp(*argv,"-passin")) {
 			if (--argc < 1)
 				badarg = 1;
 			else
 				passargin= *(++argv);
 		} else if (strcmp(*argv,"-keyform") == 0) {
 			if (--argc < 1)
 				badarg = 1;
 			else
 				keyform=str2fmt(*(++argv));
 #ifndef OPENSSL_NO_ENGINE
 		} else if(!strcmp(*argv, "-engine")) {
 			if (--argc < 1)
 				badarg = 1;
 			else
 				engine = *(++argv);
 #endif
 		} else if(!strcmp(*argv, "-pubin")) {
 			key_type = KEY_PUBKEY;
 		} else if(!strcmp(*argv, "-certin")) {
 			key_type = KEY_CERT;
 		}
 		else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1;
 		else if(!strcmp(*argv, "-hexdump")) hexdump = 1;
 		else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING;
 		else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING;
 		else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING;
 		else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING;
 		else if(!strcmp(*argv, "-x931")) pad = RSA_X931_PADDING;
 		else if(!strcmp(*argv, "-sign")) {
 			rsa_mode = RSA_SIGN;
 			need_priv = 1;
 		} else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY;
 		else if(!strcmp(*argv, "-rev")) rev = 1;
 		else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT;
 		else if(!strcmp(*argv, "-decrypt")) {
 			rsa_mode = RSA_DECRYPT;
 			need_priv = 1;
 		} else badarg = 1;
 		if(badarg) {
 			usage();
 			goto end;
 		}
 		argc--;
 		argv++;
 	}

 	if(need_priv && (key_type != KEY_PRIVKEY)) {
 		BIO_printf(bio_err, "A private key is needed for this operation\n");
 		goto end;
 	}

 #ifndef OPENSSL_NO_ENGINE
         e = setup_engine(bio_err, engine, 0);
 #endif
 	if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 		BIO_printf(bio_err, "Error getting password\n");
 		goto end;
 	}

 /* FIXME: seed PRNG only if needed */
 	app_RAND_load_file(NULL, bio_err, 0);

 	switch(key_type) {
 		case KEY_PRIVKEY:
 		pkey = load_key(bio_err, keyfile, keyform, 0,
 			passin, e, "Private Key");
 		break;

 		case KEY_PUBKEY:
 		pkey = load_pubkey(bio_err, keyfile, keyform, 0,
 			NULL, e, "Public Key");
 		break;

 		case KEY_CERT:
 		x = load_cert(bio_err, keyfile, keyform,
 			NULL, e, "Certificate");
 		if(x) {
 			pkey = X509_get_pubkey(x);
 			X509_free(x);
 		}
 		break;
 	}

 	if(!pkey) {
 		return 1;
 	}

 	rsa = EVP_PKEY_get1_RSA(pkey);
 	EVP_PKEY_free(pkey);

 	if(!rsa) {
 		BIO_printf(bio_err, "Error getting RSA key\n");
 		ERR_print_errors(bio_err);
 		goto end;
 	}


 	if(infile) {
 		if(!(in = BIO_new_file(infile, "rb"))) {
 			BIO_printf(bio_err, "Error Reading Input File\n");
 			ERR_print_errors(bio_err);
 			goto end;
 		}
 	} else in = BIO_new_fp(stdin, BIO_NOCLOSE);

 	if(outfile) {
 		if(!(out = BIO_new_file(outfile, "wb"))) {
 			BIO_printf(bio_err, "Error Reading Output File\n");
 			ERR_print_errors(bio_err);
 			goto end;
 		}
 	} else {
 		out = BIO_new_fp(stdout, BIO_NOCLOSE);
 #ifdef OPENSSL_SYS_VMS
 		{
 		    BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 		    out = BIO_push(tmpbio, out);
 		}
 #endif
 	}

 	keysize = RSA_size(rsa);

 	rsa_in = OPENSSL_malloc(keysize * 2);
 	rsa_out = OPENSSL_malloc(keysize);

 	/* Read the input data */
 	rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
 	if(rsa_inlen <= 0) {
 		BIO_printf(bio_err, "Error reading input Data\n");
 		exit(1);
 	}
 	if(rev) {
 		int i;
 		unsigned char ctmp;
 		for(i = 0; i < rsa_inlen/2; i++) {
 			ctmp = rsa_in[i];
 			rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
 			rsa_in[rsa_inlen - 1 - i] = ctmp;
 		}
 	}
 	switch(rsa_mode) {

 		case RSA_VERIFY:
 			rsa_outlen  = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
 		break;

 		case RSA_SIGN:
 			rsa_outlen  = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
 		break;

 		case RSA_ENCRYPT:
 			rsa_outlen  = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
 		break;

 		case RSA_DECRYPT:
 			rsa_outlen  = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
 		break;

 	}

 	if(rsa_outlen <= 0) {
 		BIO_printf(bio_err, "RSA operation error\n");
 		ERR_print_errors(bio_err);
 		goto end;
 	}
 	ret = 0;
 	if(asn1parse) {
 		if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
 			ERR_print_errors(bio_err);
 		}
 	} else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen);
 	else BIO_write(out, rsa_out, rsa_outlen);
 	end:
 	RSA_free(rsa);
 	BIO_free(in);
 	BIO_free_all(out);
 	if(rsa_in) OPENSSL_free(rsa_in);
 	if(rsa_out) OPENSSL_free(rsa_out);
 	if(passin) OPENSSL_free(passin);
 	return ret;
 }

 static void usage()
 {
 	BIO_printf(bio_err, "Usage: rsautl [options]\n");
 	BIO_printf(bio_err, "-in file        input file\n");
 	BIO_printf(bio_err, "-out file       output file\n");
 	BIO_printf(bio_err, "-inkey file     input key\n");
 	BIO_printf(bio_err, "-keyform arg    private key format - default PEM\n");
 	BIO_printf(bio_err, "-pubin          input is an RSA public\n");
 	BIO_printf(bio_err, "-certin         input is a certificate carrying an RSA public key\n");
 	BIO_printf(bio_err, "-ssl            use SSL v2 padding\n");
 	BIO_printf(bio_err, "-raw            use no padding\n");
 	BIO_printf(bio_err, "-pkcs           use PKCS#1 v1.5 padding (default)\n");
 	BIO_printf(bio_err, "-oaep           use PKCS#1 OAEP\n");
 	BIO_printf(bio_err, "-sign           sign with private key\n");
 	BIO_printf(bio_err, "-verify         verify with public key\n");
 	BIO_printf(bio_err, "-encrypt        encrypt with public key\n");
 	BIO_printf(bio_err, "-decrypt        decrypt with private key\n");
 	BIO_printf(bio_err, "-hexdump        hex dump output\n");
 #ifndef OPENSSL_NO_ENGINE
 	BIO_printf(bio_err, "-engine e       use engine e, possibly a hardware device.\n");
 	BIO_printf (bio_err, "-passin arg    pass phrase source\n");
 #endif

 }

 #endif
	/* rsautl.c */
	/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
	* project 2000.
	*/
	/* ====================================================================
	* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
	*
	* 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 above 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 acknowledgment:
	* "This product includes software developed by the OpenSSL Project
	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	*
	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	* endorse or promote products derived from this software without
	* prior written permission. For written permission, please contact
	* licensing@OpenSSL.org.
	*
	* 5. Products derived from this software may not be called "OpenSSL"
	* nor may "OpenSSL" appear in their names without prior written
	* permission of the OpenSSL Project.
	*
	* 6. Redistributions of any form whatsoever must retain the following
	* acknowledgment:
	* "This product includes software developed by the OpenSSL Project
	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	*
	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	* EXPRESSED 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 OpenSSL PROJECT OR
	* ITS 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.
	* ====================================================================
	*
	* This product includes cryptographic software written by Eric Young
	* (eay@cryptsoft.com). This product includes software written by Tim
	* Hudson (tjh@cryptsoft.com).
	*
	*/

	#include <openssl/opensslconf.h>
	#ifndef OPENSSL_NO_RSA

	#include "apps.h"
	#include <string.h>
	#include <openssl/err.h>
	#include <openssl/pem.h>
	#include <openssl/rsa.h>

	#define RSA_SIGN 1
	#define RSA_VERIFY 2
	#define RSA_ENCRYPT 3
	#define RSA_DECRYPT 4

	#define KEY_PRIVKEY 1
	#define KEY_PUBKEY 2
	#define KEY_CERT 3

	static void usage(void);

	#undef PROG

	#define PROG rsautl_main

	int MAIN(int argc, char **);

	int MAIN(int argc, char **argv)
	{
	ENGINE *e = NULL;
	BIO in = NULL, out = NULL;
	char infile = NULL, outfile = NULL;
	#ifndef OPENSSL_NO_ENGINE
	char *engine = NULL;
	#endif
	char *keyfile = NULL;
	char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
	int keyform = FORMAT_PEM;
	char need_priv = 0, badarg = 0, rev = 0;
	char hexdump = 0, asn1parse = 0;
	X509 *x;
	EVP_PKEY *pkey = NULL;
	RSA *rsa = NULL;
	unsigned char rsa_in = NULL, rsa_out = NULL, pad;
	char passargin = NULL, passin = NULL;
	int rsa_inlen, rsa_outlen = 0;
	int keysize;

	int ret = 1;

	argc--;
	argv++;

	if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);

	if (!load_config(bio_err, NULL))
	goto end;
	ERR_load_crypto_strings();
	OpenSSL_add_all_algorithms();
	pad = RSA_PKCS1_PADDING;

	while(argc >= 1)
	{
	if (!strcmp(*argv,"-in")) {
	if (--argc < 1)
	badarg = 1;
	else
	infile= *(++argv);
	} else if (!strcmp(*argv,"-out")) {
	if (--argc < 1)
	badarg = 1;
	else
	outfile= *(++argv);
	} else if(!strcmp(*argv, "-inkey")) {
	if (--argc < 1)
	badarg = 1;
	else
	keyfile = *(++argv);
	} else if (!strcmp(*argv,"-passin")) {
	if (--argc < 1)
	badarg = 1;
	else
	passargin= *(++argv);
	} else if (strcmp(*argv,"-keyform") == 0) {
	if (--argc < 1)
	badarg = 1;
	else
	keyform=str2fmt(*(++argv));
	#ifndef OPENSSL_NO_ENGINE
	} else if(!strcmp(*argv, "-engine")) {
	if (--argc < 1)
	badarg = 1;
	else
	engine = *(++argv);
	#endif
	} else if(!strcmp(*argv, "-pubin")) {
	key_type = KEY_PUBKEY;
	} else if(!strcmp(*argv, "-certin")) {
	key_type = KEY_CERT;
	}
	else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1;
	else if(!strcmp(*argv, "-hexdump")) hexdump = 1;
	else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING;
	else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING;
	else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING;
	else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING;
	else if(!strcmp(*argv, "-x931")) pad = RSA_X931_PADDING;
	else if(!strcmp(*argv, "-sign")) {
	rsa_mode = RSA_SIGN;
	need_priv = 1;
	} else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY;
	else if(!strcmp(*argv, "-rev")) rev = 1;
	else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT;
	else if(!strcmp(*argv, "-decrypt")) {
	rsa_mode = RSA_DECRYPT;
	need_priv = 1;
	} else badarg = 1;
	if(badarg) {
	usage();
	goto end;
	}
	argc--;
	argv++;
	}

	if(need_priv && (key_type != KEY_PRIVKEY)) {
	BIO_printf(bio_err, "A private key is needed for this operation\n");
	goto end;
	}

	#ifndef OPENSSL_NO_ENGINE
	e = setup_engine(bio_err, engine, 0);
	#endif
	if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
	BIO_printf(bio_err, "Error getting password\n");
	goto end;
	}

	/* FIXME: seed PRNG only if needed */
	app_RAND_load_file(NULL, bio_err, 0);

	switch(key_type) {
	case KEY_PRIVKEY:
	pkey = load_key(bio_err, keyfile, keyform, 0,
	passin, e, "Private Key");
	break;

	case KEY_PUBKEY:
	pkey = load_pubkey(bio_err, keyfile, keyform, 0,
	NULL, e, "Public Key");
	break;

	case KEY_CERT:
	x = load_cert(bio_err, keyfile, keyform,
	NULL, e, "Certificate");
	if(x) {
	pkey = X509_get_pubkey(x);
	X509_free(x);
	}
	break;
	}

	if(!pkey) {
	return 1;
	}

	rsa = EVP_PKEY_get1_RSA(pkey);
	EVP_PKEY_free(pkey);

	if(!rsa) {
	BIO_printf(bio_err, "Error getting RSA key\n");
	ERR_print_errors(bio_err);
	goto end;
	}


	if(infile) {
	if(!(in = BIO_new_file(infile, "rb"))) {
	BIO_printf(bio_err, "Error Reading Input File\n");
	ERR_print_errors(bio_err);
	goto end;
	}
	} else in = BIO_new_fp(stdin, BIO_NOCLOSE);

	if(outfile) {
	if(!(out = BIO_new_file(outfile, "wb"))) {
	BIO_printf(bio_err, "Error Reading Output File\n");
	ERR_print_errors(bio_err);
	goto end;
	}
	} else {
	out = BIO_new_fp(stdout, BIO_NOCLOSE);
	#ifdef OPENSSL_SYS_VMS
	{
	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	out = BIO_push(tmpbio, out);
	}
	#endif
	}

	keysize = RSA_size(rsa);

	rsa_in = OPENSSL_malloc(keysize * 2);
	rsa_out = OPENSSL_malloc(keysize);

	/* Read the input data */
	rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
	if(rsa_inlen <= 0) {
	BIO_printf(bio_err, "Error reading input Data\n");
	exit(1);
	}
	if(rev) {
	int i;
	unsigned char ctmp;
	for(i = 0; i < rsa_inlen/2; i++) {
	ctmp = rsa_in[i];
	rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
	rsa_in[rsa_inlen - 1 - i] = ctmp;
	}
	}
	switch(rsa_mode) {

	case RSA_VERIFY:
	rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
	break;

	case RSA_SIGN:
	rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
	break;

	case RSA_ENCRYPT:
	rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
	break;

	case RSA_DECRYPT:
	rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
	break;

	}

	if(rsa_outlen <= 0) {
	BIO_printf(bio_err, "RSA operation error\n");
	ERR_print_errors(bio_err);
	goto end;
	}
	ret = 0;
	if(asn1parse) {
	if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
	ERR_print_errors(bio_err);
	}
	} else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen);
	else BIO_write(out, rsa_out, rsa_outlen);
	end:
	RSA_free(rsa);
	BIO_free(in);
	BIO_free_all(out);
	if(rsa_in) OPENSSL_free(rsa_in);
	if(rsa_out) OPENSSL_free(rsa_out);
	if(passin) OPENSSL_free(passin);
	return ret;
	}

	static void usage()
	{
	BIO_printf(bio_err, "Usage: rsautl [options]\n");
	BIO_printf(bio_err, "-in file input file\n");
	BIO_printf(bio_err, "-out file output file\n");
	BIO_printf(bio_err, "-inkey file input key\n");
	BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
	BIO_printf(bio_err, "-pubin input is an RSA public\n");
	BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n");
	BIO_printf(bio_err, "-ssl use SSL v2 padding\n");
	BIO_printf(bio_err, "-raw use no padding\n");
	BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n");
	BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n");
	BIO_printf(bio_err, "-sign sign with private key\n");
	BIO_printf(bio_err, "-verify verify with public key\n");
	BIO_printf(bio_err, "-encrypt encrypt with public key\n");
	BIO_printf(bio_err, "-decrypt decrypt with private key\n");
	BIO_printf(bio_err, "-hexdump hex dump output\n");
	#ifndef OPENSSL_NO_ENGINE
	BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
	BIO_printf (bio_err, "-passin arg pass phrase source\n");
	#endif

	}

	#endif