openssl/crypto/ct/ct_x509v3.c
Rob Percival 367071f121 Adds s2i function for ct_precert_poison X509 extension
Allows CONF files for certificate requests to specify that a pre-
certificate should be created (see RFC6962).

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
2016-03-21 13:02:12 -04:00

109 lines
4 KiB
C

/*
* 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).
*
*/
#ifdef OPENSSL_NO_CT
# error "CT is disabled"
#endif
#include "ct_locl.h"
static char *i2s_poison(const X509V3_EXT_METHOD *method, void *val)
{
return OPENSSL_strdup("NULL");
}
static void *s2i_poison(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, const char *str)
{
return ASN1_NULL_new();
}
static int i2r_SCT_LIST(X509V3_EXT_METHOD *method, STACK_OF(SCT) *sct_list,
BIO *out, int indent)
{
SCT_LIST_print(sct_list, out, indent, "\n", NULL);
return 1;
}
/* Handlers for X509v3/OCSP Certificate Transparency extensions */
const X509V3_EXT_METHOD v3_ct_scts[] = {
/* X509v3 extension in certificates that contains SCTs */
{ NID_ct_precert_scts, 0, NULL,
NULL, (X509V3_EXT_FREE)SCT_LIST_free,
(X509V3_EXT_D2I)d2i_SCT_LIST, (X509V3_EXT_I2D)i2d_SCT_LIST,
NULL, NULL,
NULL, NULL,
(X509V3_EXT_I2R)i2r_SCT_LIST, NULL,
NULL },
/* X509v3 extension to mark a certificate as a pre-certificate */
{ NID_ct_precert_poison, 0, ASN1_ITEM_ref(ASN1_NULL),
NULL, NULL, NULL, NULL,
i2s_poison, s2i_poison,
NULL, NULL,
NULL, NULL,
NULL },
/* OCSP extension that contains SCTs */
{ NID_ct_cert_scts, 0, NULL,
0, (X509V3_EXT_FREE)SCT_LIST_free,
(X509V3_EXT_D2I)d2i_SCT_LIST, (X509V3_EXT_I2D)i2d_SCT_LIST,
NULL, NULL,
NULL, NULL,
(X509V3_EXT_I2R)i2r_SCT_LIST, NULL,
NULL },
};