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openssl/crypto/pkcs12/p12_crt.c
Dr. Stephen Henson 9a48b07ee4 Various enhancements to PKCS#12 code, new 
medium level API, improved PKCS12_create
and additional functionality in pkcs12
utility.
2002-10-03 23:53:52 +00:00

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/* p12_crt.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 <stdio.h>
#include "cryptlib.h"
#include <openssl/pkcs12.h>
static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag);
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(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);
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;
}
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