text: /* p12_crt.c */
  /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   * project.
   */
  /* ====================================================================
   * Copyright (c) 1999-2002 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 "cryptlib.h"
  #include <openssl/pkcs12.h>
  #ifdef OPENSSL_SYS_WINDOWS
  #include <stdio.h>
  #endif
  
  
  static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag);
  
  static int copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
  	{
  	int idx;
  	X509_ATTRIBUTE *attr;
  	idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
  	if (idx < 0)
  		return 1;
  	attr = EVP_PKEY_get_attr(pkey, idx);
  	if (!X509at_add1_attr(&bag->attrib, attr))
  		return 0;
  	return 1;
  	}
  
  PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert,
  	     STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter,
  	     int keytype)
  {
  	PKCS12 *p12 = NULL;
  	STACK_OF(PKCS7) *safes = NULL;
  	STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
  	PKCS12_SAFEBAG *bag = NULL;
  	int i;
  	unsigned char keyid[EVP_MAX_MD_SIZE];
  	unsigned int keyidlen = 0;
  
  	/* Set defaults */
  	if (!nid_cert)
  		nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
  	if (!nid_key)
  		nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
  	if (!iter)
  		iter = PKCS12_DEFAULT_ITER;
  	if (!mac_iter)
  		mac_iter = 1;
  
  	if(!pkey && !cert && !ca)
  		{
  		PKCS12err(PKCS12_F_PKCS12_CREATE,PKCS12_R_INVALID_NULL_ARGUMENT);
  		return NULL;
  		}
  
  	if (pkey && cert)
  		{
  		if(!X509_check_private_key(cert, pkey))
  			return NULL;
  		X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
  		}
  
  	if (cert)
  		{
  		bag = PKCS12_add_cert(&bags, cert);
  		if(name && !PKCS12_add_friendlyname(bag, name, -1))
  			goto err;
  		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
  			goto err;
  		}
  
  	/* Add all other certificates */
  	for(i = 0; i < sk_X509_num(ca); i++)
  		{
  		if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
  			goto err;
  		}
  
  	if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
  			goto err;
  
  	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
  	bags = NULL;
  
  	if (pkey)
  		{
  		bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
  
  		if (!bag)
  			goto err;
  
  		if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
  			goto err;
  		if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
  			goto err;
  
  		if(name && !PKCS12_add_friendlyname(bag, name, -1))
  			goto err;
  		if(keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
  			goto err;
  		}
  
  	if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
  			goto err;
  
  	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
  	bags = NULL;
  
  	p12 = PKCS12_add_safes(safes, 0);
  
  	if (!p12)
  		goto err;
  
  	sk_PKCS7_pop_free(safes, PKCS7_free);
  
  	safes = NULL;
  
  	if ((mac_iter != -1) &&
  		!PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
  	    goto err;
  
  	return p12;
  
  	err:
  
  	if (p12)
  		PKCS12_free(p12);
  	if (safes)
  		sk_PKCS7_pop_free(safes, PKCS7_free);
  	if (bags)
  		sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
  	return NULL;
  
  }
  
  PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
  	{
  	PKCS12_SAFEBAG *bag = NULL;
  	char *name;
  	int namelen = -1;
  	unsigned char *keyid;
  	int keyidlen = -1;
  
  	/* Add user certificate */
  	if(!(bag = PKCS12_x5092certbag(cert)))
  		goto err;
  
  	/* Use friendlyName and localKeyID in certificate.
  	 * (if present)
  	 */
  
  	name = (char *)X509_alias_get0(cert, &namelen);
  
  	if(name && !PKCS12_add_friendlyname(bag, name, namelen))
  		goto err;
  
  	keyid = X509_keyid_get0(cert, &keyidlen);
  
  	if(keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
  		goto err;
  
  	if (!pkcs12_add_bag(pbags, bag))
  		goto err;
  
  	return bag;
  
  	err:
  
  	if (bag)
  		PKCS12_SAFEBAG_free(bag);
  
  	return NULL;
  
  	}
  
  PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key,
  						int key_usage, int iter,
  						int nid_key, char *pass)
  	{
  
  	PKCS12_SAFEBAG *bag = NULL;
  	PKCS8_PRIV_KEY_INFO *p8 = NULL;
  
  	/* Make a PKCS#8 structure */
  	if(!(p8 = EVP_PKEY2PKCS8(key)))
  		goto err;
  	if(key_usage && !PKCS8_add_keyusage(p8, key_usage))
  		goto err;
  	if (nid_key != -1)
  		{
  		bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, iter, p8);
  		PKCS8_PRIV_KEY_INFO_free(p8);
  		}
  	else
  		bag = PKCS12_MAKE_KEYBAG(p8);
  
  	if(!bag)
  		goto err;
  
  	if (!pkcs12_add_bag(pbags, bag))
  		goto err;
  
  	return bag;
  
  	err:
  
  	if (bag)
  		PKCS12_SAFEBAG_free(bag);
  
  	return NULL;
  
  	}
  
  int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
  						int nid_safe, int iter, char *pass)
  	{
  	PKCS7 *p7 = NULL;
  	int free_safes = 0;
  
  	if (!*psafes)
  		{
  		*psafes = sk_PKCS7_new_null();
  		if (!*psafes)
  			return 0;
  		free_safes = 1;
  		}
  	else
  		free_safes = 0;
  
  	if (nid_safe == 0)
  		nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
  
  	if (nid_safe == -1)
  		p7 = PKCS12_pack_p7data(bags);
  	else
  		p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0,
  					  iter, bags);
  	if (!p7)
  		goto err;
  
  	if (!sk_PKCS7_push(*psafes, p7))
  		goto err;
  
  	return 1;
  
  	err:
  	if (free_safes)
  		{
  		sk_PKCS7_free(*psafes);
  		*psafes = NULL;
  		}
  
  	if (p7)
  		PKCS7_free(p7);
  
  	return 0;
  
  	}
  
  static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag)
  	{
  	int free_bags;
  	if (!pbags)
  		return 1;
  	if (!*pbags)
  		{
  		*pbags = sk_PKCS12_SAFEBAG_new_null();
  		if (!*pbags)
  			return 0;
  		free_bags = 1;
  		}
  	else 
  		free_bags = 0;
  
  	if (!sk_PKCS12_SAFEBAG_push(*pbags, bag))
  		{
  		if (free_bags)
  			{
  			sk_PKCS12_SAFEBAG_free(*pbags);
  			*pbags = NULL;
  			}
  		return 0;
  		}
  
  	return 1;
  
  	}
  		
  
  PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
  	{
  	PKCS12 *p12;
  	if (nid_p7 <= 0)
  		nid_p7 = NID_pkcs7_data;
  	p12 = PKCS12_init(nid_p7);
  
  	if (!p12)
  		return NULL;
  
  	if(!PKCS12_pack_authsafes(p12, safes))
  		{
  		PKCS12_free(p12);
  		return NULL;
  		}
  
  	return p12;
  
  	}
  