sl@0: /* crypto/pkcs7/enc.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: #include <stdio.h>
sl@0: #include <string.h>
sl@0: #include <openssl/bio.h>
sl@0: #include <openssl/x509.h>
sl@0: #include <openssl/pem.h>
sl@0: #include <openssl/err.h>
sl@0: 
sl@0: int main(argc,argv)
sl@0: int argc;
sl@0: char *argv[];
sl@0: 	{
sl@0: 	X509 *x509;
sl@0: 	PKCS7 *p7;
sl@0: 	BIO *in;
sl@0: 	BIO *data,*p7bio;
sl@0: 	char buf[1024*4];
sl@0: 	int i;
sl@0: 	int nodetach=1;
sl@0: 	char *keyfile = NULL;
sl@0: 	const EVP_CIPHER *cipher=NULL;
sl@0: 	STACK_OF(X509) *recips=NULL;
sl@0: 
sl@0: 	OpenSSL_add_all_algorithms();
sl@0: 
sl@0: 	data=BIO_new(BIO_s_file());
sl@0: 	while(argc > 1)
sl@0: 		{
sl@0: 		if (strcmp(argv[1],"-nd") == 0)
sl@0: 			{
sl@0: 			nodetach=1;
sl@0: 			argv++; argc--;
sl@0: 			}
sl@0: 		else if ((strcmp(argv[1],"-c") == 0) && (argc >= 2)) {
sl@0: 			if(!(cipher = EVP_get_cipherbyname(argv[2]))) {
sl@0: 				fprintf(stderr, "Unknown cipher %s\n", argv[2]);
sl@0: 				goto err;
sl@0: 			}
sl@0: 			argc-=2;
sl@0: 			argv+=2;
sl@0: 		} else if ((strcmp(argv[1],"-k") == 0) && (argc >= 2)) {
sl@0: 			keyfile = argv[2];
sl@0: 			argc-=2;
sl@0: 			argv+=2;
sl@0: 			if (!(in=BIO_new_file(keyfile,"r"))) goto err;
sl@0: 			if (!(x509=PEM_read_bio_X509(in,NULL,NULL,NULL)))
sl@0: 				goto err;
sl@0: 			if(!recips) recips = sk_X509_new_null();
sl@0: 			sk_X509_push(recips, x509);
sl@0: 			BIO_free(in);
sl@0: 		} else break;
sl@0: 	}
sl@0: 
sl@0: 	if(!recips) {
sl@0: 		fprintf(stderr, "No recipients\n");
sl@0: 		goto err;
sl@0: 	}
sl@0: 
sl@0: 	if (!BIO_read_filename(data,argv[1])) goto err;
sl@0: 
sl@0: 	p7=PKCS7_new();
sl@0: #if 0
sl@0: 	BIO_reset(in);
sl@0: 	if ((pkey=PEM_read_bio_PrivateKey(in,NULL,NULL)) == NULL) goto err;
sl@0: 	BIO_free(in);
sl@0: 	PKCS7_set_type(p7,NID_pkcs7_signedAndEnveloped);
sl@0: 	 
sl@0: 	if (PKCS7_add_signature(p7,x509,pkey,EVP_sha1()) == NULL) goto err;
sl@0: 	/* we may want to add more */
sl@0: 	PKCS7_add_certificate(p7,x509);
sl@0: #else
sl@0: 	PKCS7_set_type(p7,NID_pkcs7_enveloped);
sl@0: #endif
sl@0: 	if(!cipher)	{
sl@0: #ifndef OPENSSL_NO_DES
sl@0: 		cipher = EVP_des_ede3_cbc();
sl@0: #else
sl@0: 		fprintf(stderr, "No cipher selected\n");
sl@0: 		goto err;
sl@0: #endif
sl@0: 	}
sl@0: 
sl@0: 	if (!PKCS7_set_cipher(p7,cipher)) goto err;
sl@0: 	for(i = 0; i < sk_X509_num(recips); i++) {
sl@0: 		if (!PKCS7_add_recipient(p7,sk_X509_value(recips, i))) goto err;
sl@0: 	}
sl@0: 	sk_X509_pop_free(recips, X509_free);
sl@0: 
sl@0: 	/* Set the content of the signed to 'data' */
sl@0: 	/* PKCS7_content_new(p7,NID_pkcs7_data); not used in envelope */
sl@0: 
sl@0: 	/* could be used, but not in this version :-)
sl@0: 	if (!nodetach) PKCS7_set_detached(p7,1);
sl@0: 	*/
sl@0: 
sl@0: 	if ((p7bio=PKCS7_dataInit(p7,NULL)) == NULL) goto err;
sl@0: 
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		i=BIO_read(data,buf,sizeof(buf));
sl@0: 		if (i <= 0) break;
sl@0: 		BIO_write(p7bio,buf,i);
sl@0: 		}
sl@0: 	BIO_flush(p7bio);
sl@0: 
sl@0: 	if (!PKCS7_dataFinal(p7,p7bio)) goto err;
sl@0: 	BIO_free(p7bio);
sl@0: 
sl@0: 	PEM_write_PKCS7(stdout,p7);
sl@0: 	PKCS7_free(p7);
sl@0: 
sl@0: 	exit(0);
sl@0: err:
sl@0: 	ERR_load_crypto_strings();
sl@0: 	ERR_print_errors_fp(stderr);
sl@0: 	exit(1);
sl@0: 	}
sl@0: