/*
- * Written by Rob Stradling (rob@comodo.com) and Stephen Henson
- * (steve@openssl.org) for the OpenSSL project 2014.
- */
-/* ====================================================================
- * Copyright (c) 2014 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).
+ * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#ifdef OPENSSL_NO_CT
* AKID from the presigner certificate, if necessary.
* Returns 1 on success, 0 otherwise.
*/
-static int ct_x509_cert_fixup(X509 *cert, X509 *presigner)
+__owur static int ct_x509_cert_fixup(X509 *cert, X509 *presigner)
{
int preidx, certidx;
int pre_akid_ext_is_dup, cert_akid_ext_is_dup;
int poison_ext_is_dup, sct_ext_is_dup;
int poison_idx = ct_x509_get_ext(cert, NID_ct_precert_poison, &poison_ext_is_dup);
- /* Duplicate poison */
+ /* Duplicate poison extensions are present - error */
if (poison_ext_is_dup)
goto err;
- /* If no poison extension, store encoding */
+ /* If *cert doesn't have a poison extension, it isn't a precert */
if (poison_idx == -1) {
- /* presigner must have poison */
+ /* cert isn't a precert, so we shouldn't have a presigner */
if (presigner != NULL)
goto err;
goto err;
}
- /* See if have precert scts extension */
+ /* See if cert has a precert SCTs extension */
idx = ct_x509_get_ext(cert, NID_ct_precert_scts, &sct_ext_is_dup);
- /* Duplicate scts */
+ /* Duplicate SCT extensions are present - error */
if (sct_ext_is_dup)
goto err;
- if (idx >= 0) {
- /* Can't have both poison and scts */
- if (poison_idx >= 0)
- goto err;
- } else {
+ if (idx >= 0 && poison_idx >= 0) {
+ /*
+ * cert can't both contain SCTs (i.e. have an SCT extension) and be a
+ * precert (i.e. have a poison extension).
+ */
+ goto err;
+ }
+
+ if (idx == -1) {
idx = poison_idx;
}
+ /*
+ * If either a poison or SCT extension is present, remove it before encoding
+ * cert. This, along with ct_x509_cert_fixup(), gets a TBSCertificate (see
+ * RFC5280) from cert, which is what the CT log signed when it produced the
+ * SCT.
+ */
if (idx >= 0) {
X509_EXTENSION *ext;
return 0;
}
-static int ct_public_key_hash(X509_PUBKEY *pkey, unsigned char **hash,
- size_t *hash_len)
+__owur static int ct_public_key_hash(X509_PUBKEY *pkey, unsigned char **hash,
+ size_t *hash_len)
{
- int ret = -1;
+ int ret = 0;
unsigned char *md = NULL, *der = NULL;
int der_len;
unsigned int md_len;
int SCT_CTX_set1_issuer(SCT_CTX *sctx, const X509 *issuer)
{
- return ct_public_key_hash(X509_get_X509_PUBKEY(issuer), &sctx->ihash,
- &sctx->ihashlen);
+ return SCT_CTX_set1_issuer_pubkey(sctx, X509_get_X509_PUBKEY(issuer));
}
int SCT_CTX_set1_issuer_pubkey(SCT_CTX *sctx, X509_PUBKEY *pubkey)