sl@0: /* rsautl.c */
sl@0: /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
sl@0:  * project 2000.
sl@0:  */
sl@0: /* ====================================================================
sl@0:  * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
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:  *
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer. 
sl@0:  *
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in
sl@0:  *    the documentation and/or other materials provided with the
sl@0:  *    distribution.
sl@0:  *
sl@0:  * 3. All advertising materials mentioning features or use of this
sl@0:  *    software must display the following acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
sl@0:  *    endorse or promote products derived from this software without
sl@0:  *    prior written permission. For written permission, please contact
sl@0:  *    licensing@OpenSSL.org.
sl@0:  *
sl@0:  * 5. Products derived from this software may not be called "OpenSSL"
sl@0:  *    nor may "OpenSSL" appear in their names without prior written
sl@0:  *    permission of the OpenSSL Project.
sl@0:  *
sl@0:  * 6. Redistributions of any form whatsoever must retain the following
sl@0:  *    acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
sl@0:  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sl@0:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
sl@0:  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
sl@0:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
sl@0:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
sl@0:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
sl@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
sl@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
sl@0:  * OF THE POSSIBILITY OF SUCH DAMAGE.
sl@0:  * ====================================================================
sl@0:  *
sl@0:  * This product includes cryptographic software written by Eric Young
sl@0:  * (eay@cryptsoft.com).  This product includes software written by Tim
sl@0:  * Hudson (tjh@cryptsoft.com).
sl@0:  *
sl@0:  */
sl@0: 
sl@0: #include <openssl/opensslconf.h>
sl@0: #ifndef OPENSSL_NO_RSA
sl@0: 
sl@0: #include "apps.h"
sl@0: #include <string.h>
sl@0: #include <openssl/err.h>
sl@0: #include <openssl/pem.h>
sl@0: #include <openssl/rsa.h>
sl@0: 
sl@0: #define RSA_SIGN 	1
sl@0: #define RSA_VERIFY 	2
sl@0: #define RSA_ENCRYPT 	3
sl@0: #define RSA_DECRYPT 	4
sl@0: 
sl@0: #define KEY_PRIVKEY	1
sl@0: #define KEY_PUBKEY	2
sl@0: #define KEY_CERT	3
sl@0: 
sl@0: static void usage(void);
sl@0: 
sl@0: #undef PROG
sl@0: 
sl@0: #define PROG rsautl_main
sl@0: 
sl@0: 
sl@0: int MAIN(int argc, char **);
sl@0: 
sl@0: int MAIN(int argc, char **argv)
sl@0: {
sl@0: 	ENGINE *e = NULL;
sl@0: 	BIO *in = NULL, *out = NULL;
sl@0: 	char *infile = NULL, *outfile = NULL;
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 	char *engine = NULL;
sl@0: #endif
sl@0: 	char *keyfile = NULL;
sl@0: 	char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
sl@0: 	int keyform = FORMAT_PEM;
sl@0: 	char need_priv = 0, badarg = 0, rev = 0;
sl@0: 	char hexdump = 0, asn1parse = 0;
sl@0: 	X509 *x;
sl@0: 	EVP_PKEY *pkey = NULL;
sl@0: 	RSA *rsa = NULL;
sl@0: 	unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
sl@0: 	char *passargin = NULL, *passin = NULL;
sl@0: 	int rsa_inlen, rsa_outlen = 0;
sl@0: 	int keysize;
sl@0: 
sl@0: 	int ret = 1;
sl@0: 
sl@0: 	argc--;
sl@0: 	argv++;
sl@0: 	if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
sl@0: 
sl@0: 	if (!load_config(bio_err, NULL))
sl@0: 		goto end;
sl@0: 	ERR_load_crypto_strings();
sl@0: 	OpenSSL_add_all_algorithms();
sl@0: 	pad = RSA_PKCS1_PADDING;
sl@0: 	
sl@0: 	while(argc >= 1)
sl@0: 	{
sl@0: 		if (!strcmp(*argv,"-in")) {
sl@0: 			if (--argc < 1) badarg = 1;
sl@0:                         infile= *(++argv);
sl@0: 		} else if (!strcmp(*argv,"-out")) {
sl@0: 			if (--argc < 1) badarg = 1;
sl@0: 			outfile= *(++argv);
sl@0: 		} else if(!strcmp(*argv, "-inkey")) {
sl@0: 			if (--argc < 1) badarg = 1;
sl@0: 			keyfile = *(++argv);
sl@0: 		} else if (!strcmp(*argv,"-passin")) {
sl@0: 			if (--argc < 1) badarg = 1;
sl@0: 			passargin= *(++argv);
sl@0: 		} else if (strcmp(*argv,"-keyform") == 0) {
sl@0: 			if (--argc < 1) badarg = 1;
sl@0: 			keyform=str2fmt(*(++argv));
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 		} else if(!strcmp(*argv, "-engine")) {
sl@0: 			if (--argc < 1) badarg = 1;
sl@0: 			engine = *(++argv);
sl@0: #endif
sl@0: 		} else if(!strcmp(*argv, "-pubin")) {
sl@0: 			key_type = KEY_PUBKEY;
sl@0: 		} else if(!strcmp(*argv, "-certin")) {
sl@0: 			key_type = KEY_CERT;
sl@0: 		} 
sl@0: 		else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1;
sl@0: 		else if(!strcmp(*argv, "-hexdump")) hexdump = 1;
sl@0: 		else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING;
sl@0: 		else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING;
sl@0: 		else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING;
sl@0: 		else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING;
sl@0: 		else if(!strcmp(*argv, "-x931")) pad = RSA_X931_PADDING;
sl@0: 		else if(!strcmp(*argv, "-sign")) {
sl@0: 			rsa_mode = RSA_SIGN;
sl@0: 			need_priv = 1;
sl@0: 		} else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY;
sl@0: 		else if(!strcmp(*argv, "-rev")) rev = 1;
sl@0: 		else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT;
sl@0: 		else if(!strcmp(*argv, "-decrypt")) {
sl@0: 			rsa_mode = RSA_DECRYPT;
sl@0: 			need_priv = 1;
sl@0: 		} else badarg = 1;
sl@0: 		if(badarg) {
sl@0: 			usage();
sl@0: 			goto end;
sl@0: 		}
sl@0: 		argc--;
sl@0: 		argv++;
sl@0: 	}
sl@0: 
sl@0: 	if(need_priv && (key_type != KEY_PRIVKEY)) {
sl@0: 		BIO_printf(bio_err, "A private key is needed for this operation\n");
sl@0: 		goto end;
sl@0: 	}
sl@0: 
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0:         e = setup_engine(bio_err, engine, 0);
sl@0: #endif
sl@0: 	if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
sl@0: 		BIO_printf(bio_err, "Error getting password\n");
sl@0: 		goto end;
sl@0: 	}
sl@0: 
sl@0: /* FIXME: seed PRNG only if needed */
sl@0: 	app_RAND_load_file(NULL, bio_err, 0);
sl@0: 	
sl@0: 	switch(key_type) {
sl@0: 		case KEY_PRIVKEY:
sl@0: 		pkey = load_key(bio_err, keyfile, keyform, 0,
sl@0: 			passin, e, "Private Key");
sl@0: 		break;
sl@0: 
sl@0: 		case KEY_PUBKEY:
sl@0: 		pkey = load_pubkey(bio_err, keyfile, keyform, 0,
sl@0: 			NULL, e, "Public Key");
sl@0: 		break;
sl@0: 
sl@0: 		case KEY_CERT:
sl@0: 		x = load_cert(bio_err, keyfile, keyform,
sl@0: 			NULL, e, "Certificate");
sl@0: 		if(x) {
sl@0: 			pkey = X509_get_pubkey(x);
sl@0: 			X509_free(x);
sl@0: 		}
sl@0: 		break;
sl@0: 	}
sl@0: 
sl@0: 	if(!pkey) {
sl@0: 		return 1;
sl@0: 	}
sl@0: 
sl@0: 	rsa = EVP_PKEY_get1_RSA(pkey);
sl@0: 	EVP_PKEY_free(pkey);
sl@0: 
sl@0: 	if(!rsa) {
sl@0: 		BIO_printf(bio_err, "Error getting RSA key\n");
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		goto end;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: 	if(infile) {
sl@0: 		if(!(in = BIO_new_file(infile, "rb"))) {
sl@0: 			BIO_printf(bio_err, "Error Reading Input File\n");
sl@0: 			ERR_print_errors(bio_err);	
sl@0: 			goto end;
sl@0: 		}
sl@0: 	} 
sl@0: 	else 
sl@0: 	in = BIO_new_fp(stdin, BIO_NOCLOSE);
sl@0: 
sl@0: 	if(outfile) {
sl@0: 		if(!(out = BIO_new_file(outfile, "wb"))) {
sl@0: 			BIO_printf(bio_err, "Error Reading Output File\n");
sl@0: 			ERR_print_errors(bio_err);	
sl@0: 			goto end;
sl@0: 		}
sl@0: 	} else {
sl@0: 
sl@0: 		out = BIO_new_fp(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: 
sl@0: 	keysize = RSA_size(rsa);
sl@0: 
sl@0: 	rsa_in = OPENSSL_malloc(keysize * 2);
sl@0: 	rsa_out = OPENSSL_malloc(keysize);
sl@0: 
sl@0: 	/* Read the input data */
sl@0: 	rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
sl@0: 	if(rsa_inlen <= 0) {
sl@0: 		BIO_printf(bio_err, "Error reading input Data\n");
sl@0: 		exit(1);
sl@0: 	}
sl@0: 	if(rev) {
sl@0: 		int i;
sl@0: 		unsigned char ctmp;
sl@0: 		for(i = 0; i < rsa_inlen/2; i++) {
sl@0: 			ctmp = rsa_in[i];
sl@0: 			rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
sl@0: 			rsa_in[rsa_inlen - 1 - i] = ctmp;
sl@0: 		}
sl@0: 	}
sl@0: 	switch(rsa_mode) {
sl@0: 
sl@0: 		case RSA_VERIFY:
sl@0: 			rsa_outlen  = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
sl@0: 		break;
sl@0: 
sl@0: 		case RSA_SIGN:
sl@0: 			rsa_outlen  = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
sl@0: 		break;
sl@0: 
sl@0: 		case RSA_ENCRYPT:
sl@0: 			rsa_outlen  = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
sl@0: 		break;
sl@0: 
sl@0: 		case RSA_DECRYPT:
sl@0: 			rsa_outlen  = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
sl@0: 		break;
sl@0: 
sl@0: 	}
sl@0: 
sl@0: 	if(rsa_outlen <= 0) {
sl@0: 		BIO_printf(bio_err, "RSA operation error\n");
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		goto end;
sl@0: 	}
sl@0: 	ret = 0;
sl@0: 	if(asn1parse) {
sl@0: 		if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
sl@0: 			ERR_print_errors(bio_err);
sl@0: 		}
sl@0: 	} else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen);
sl@0: 	else BIO_write(out, rsa_out, rsa_outlen);
sl@0: 	end:
sl@0: 	RSA_free(rsa);
sl@0: 	BIO_free(in);
sl@0: 	BIO_free_all(out);
sl@0: 	if(rsa_in) OPENSSL_free(rsa_in);
sl@0: 	if(rsa_out) OPENSSL_free(rsa_out);
sl@0: 	if(passin) OPENSSL_free(passin);
sl@0: 	return ret;
sl@0: }
sl@0: 
sl@0: static void usage()
sl@0: {
sl@0: 	BIO_printf(bio_err, "Usage: rsautl [options]\n");
sl@0: 	BIO_printf(bio_err, "-in file        input file\n");
sl@0: 	BIO_printf(bio_err, "-out file       output file\n");
sl@0: 	BIO_printf(bio_err, "-inkey file     input key\n");
sl@0: 	BIO_printf(bio_err, "-keyform arg    private key format - default PEM\n");
sl@0: 	BIO_printf(bio_err, "-pubin          input is an RSA public\n");
sl@0: 	BIO_printf(bio_err, "-certin         input is a certificate carrying an RSA public key\n");
sl@0: 	BIO_printf(bio_err, "-ssl            use SSL v2 padding\n");
sl@0: 	BIO_printf(bio_err, "-raw            use no padding\n");
sl@0: 	BIO_printf(bio_err, "-pkcs           use PKCS#1 v1.5 padding (default)\n");
sl@0: 	BIO_printf(bio_err, "-oaep           use PKCS#1 OAEP\n");
sl@0: 	BIO_printf(bio_err, "-sign           sign with private key\n");
sl@0: 	BIO_printf(bio_err, "-verify         verify with public key\n");
sl@0: 	BIO_printf(bio_err, "-encrypt        encrypt with public key\n");
sl@0: 	BIO_printf(bio_err, "-decrypt        decrypt with private key\n");
sl@0: 	BIO_printf(bio_err, "-hexdump        hex dump output\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: 	BIO_printf (bio_err, "-passin arg    pass phrase source\n");
sl@0: #endif
sl@0: 
sl@0: }
sl@0: 
sl@0: #endif