350 lines
8.1 KiB
C
350 lines
8.1 KiB
C
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/* $OpenBSD: p12_crt.c,v 1.18 2018/05/13 13:46:55 tb Exp $ */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project.
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*/
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/* ====================================================================
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* Copyright (c) 1999-2002 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <openssl/err.h>
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#include <openssl/pkcs12.h>
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static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
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PKCS12_SAFEBAG *bag);
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static int
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copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
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{
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int idx;
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X509_ATTRIBUTE *attr;
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idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
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if (idx < 0)
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return 1;
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attr = EVP_PKEY_get_attr(pkey, idx);
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if (!X509at_add1_attr(&bag->attrib, attr))
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return 0;
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return 1;
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}
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PKCS12 *
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PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, X509 *cert,
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STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter,
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int keytype)
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{
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PKCS12 *p12 = NULL;
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STACK_OF(PKCS7) *safes = NULL;
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STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
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PKCS12_SAFEBAG *bag = NULL;
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int i;
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unsigned char keyid[EVP_MAX_MD_SIZE];
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unsigned int keyidlen = 0;
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/* Set defaults */
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if (!nid_cert) {
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nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
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}
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if (!nid_key)
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nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
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if (!iter)
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iter = PKCS12_DEFAULT_ITER;
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if (!mac_iter)
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mac_iter = 1;
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if (!pkey && !cert && !ca) {
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PKCS12error(PKCS12_R_INVALID_NULL_ARGUMENT);
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return NULL;
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}
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if (pkey && cert) {
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if (!X509_check_private_key(cert, pkey))
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return NULL;
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X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
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}
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if (cert) {
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bag = PKCS12_add_cert(&bags, cert);
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if (name && !PKCS12_add_friendlyname(bag, name, -1))
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goto err;
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if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
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goto err;
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}
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/* Add all other certificates */
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for (i = 0; i < sk_X509_num(ca); i++) {
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if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
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goto err;
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}
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if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
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goto err;
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sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
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bags = NULL;
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if (pkey) {
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bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
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if (!bag)
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goto err;
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if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
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goto err;
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if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
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goto err;
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if (name && !PKCS12_add_friendlyname(bag, name, -1))
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goto err;
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if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
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goto err;
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}
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if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
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goto err;
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sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
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bags = NULL;
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p12 = PKCS12_add_safes(safes, 0);
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if (!p12)
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goto err;
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sk_PKCS7_pop_free(safes, PKCS7_free);
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safes = NULL;
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if ((mac_iter != -1) &&
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!PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
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goto err;
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return p12;
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err:
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if (p12)
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PKCS12_free(p12);
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if (safes)
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sk_PKCS7_pop_free(safes, PKCS7_free);
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if (bags)
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sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
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return NULL;
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}
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PKCS12_SAFEBAG *
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PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
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{
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PKCS12_SAFEBAG *bag = NULL;
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char *name;
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int namelen = -1;
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unsigned char *keyid;
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int keyidlen = -1;
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/* Add user certificate */
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if (!(bag = PKCS12_x5092certbag(cert)))
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goto err;
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/* Use friendlyName and localKeyID in certificate.
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* (if present)
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*/
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name = (char *)X509_alias_get0(cert, &namelen);
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if (name && !PKCS12_add_friendlyname(bag, name, namelen))
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goto err;
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keyid = X509_keyid_get0(cert, &keyidlen);
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if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
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goto err;
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if (!pkcs12_add_bag(pbags, bag))
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goto err;
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return bag;
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err:
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if (bag)
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PKCS12_SAFEBAG_free(bag);
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return NULL;
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}
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PKCS12_SAFEBAG *
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PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key, int key_usage,
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int iter, int nid_key, const char *pass)
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{
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PKCS12_SAFEBAG *bag = NULL;
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PKCS8_PRIV_KEY_INFO *p8 = NULL;
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/* Make a PKCS#8 structure */
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if (!(p8 = EVP_PKEY2PKCS8(key)))
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goto err;
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if (key_usage && !PKCS8_add_keyusage(p8, key_usage))
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goto err;
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if (nid_key != -1) {
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bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0,
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iter, p8);
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PKCS8_PRIV_KEY_INFO_free(p8);
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p8 = NULL;
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} else {
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bag = PKCS12_MAKE_KEYBAG(p8);
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if (bag != NULL)
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p8 = NULL;
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}
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if (!bag)
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goto err;
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if (!pkcs12_add_bag(pbags, bag))
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goto err;
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return bag;
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err:
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if (bag)
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PKCS12_SAFEBAG_free(bag);
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if (p8)
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PKCS8_PRIV_KEY_INFO_free(p8);
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return NULL;
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}
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int
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PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
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int nid_safe, int iter, const char *pass)
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{
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PKCS7 *p7 = NULL;
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int free_safes = 0;
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if (!*psafes) {
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*psafes = sk_PKCS7_new_null();
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if (!*psafes)
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return 0;
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free_safes = 1;
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} else
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free_safes = 0;
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if (nid_safe == 0)
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nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
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if (nid_safe == -1)
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p7 = PKCS12_pack_p7data(bags);
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else
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p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0,
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iter, bags);
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if (!p7)
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goto err;
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if (!sk_PKCS7_push(*psafes, p7))
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goto err;
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return 1;
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err:
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if (free_safes) {
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sk_PKCS7_free(*psafes);
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*psafes = NULL;
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}
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if (p7)
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PKCS7_free(p7);
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return 0;
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}
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static int
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pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag)
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{
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int free_bags;
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if (!pbags)
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return 1;
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if (!*pbags) {
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*pbags = sk_PKCS12_SAFEBAG_new_null();
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if (!*pbags)
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return 0;
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free_bags = 1;
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} else
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free_bags = 0;
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if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) {
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if (free_bags) {
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sk_PKCS12_SAFEBAG_free(*pbags);
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*pbags = NULL;
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}
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return 0;
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}
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return 1;
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}
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PKCS12 *
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PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
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{
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PKCS12 *p12;
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if (nid_p7 <= 0)
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nid_p7 = NID_pkcs7_data;
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p12 = PKCS12_init(nid_p7);
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if (!p12)
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return NULL;
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if (!PKCS12_pack_authsafes(p12, safes)) {
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PKCS12_free(p12);
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return NULL;
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}
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return p12;
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}
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