3 =for comment openssl_manual_section:7
7 ct - Certificate Transparency
11 #include <openssl/ct.h>
15 This library implements Certificate Transparency (CT) verification for TLS
16 clients, as defined in RFC 6962. This verification can provide some confidence
17 that a certificate has been publicly logged in a set of CT logs.
19 By default, these checks are disabled. They can be enabled using
20 SSL_CTX_ct_enable() or SSL_ct_enable().
22 This library can also be used to parse and examine CT data structures, such as
23 Signed Certificate Timestamps (SCTs), or to read a list of CT logs. There are
25 - decoding and encoding SCTs in DER and TLS wire format.
27 - verifying the authenticity of SCTs.
28 - loading a CT log list from a CONF file.
33 L<CTLOG_STORE_new(3)>,
34 L<CTLOG_STORE_get0_log_by_id(3)>,
39 L<CT_POLICY_EVAL_CTX(3)>,
40 L<SSL_CTX_set_ct_validation_callback(3)>
44 This library was added in OpenSSL 1.1.0.
48 Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
50 Licensed under the OpenSSL license (the "License"). You may not use
51 this file except in compliance with the License. You can obtain a copy
52 in the file LICENSE in the source distribution or at
53 L<https://www.openssl.org/source/license.html>.