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1=pod
2
3=head1 NAME
4
5ct - Certificate Transparency
6
7=head1 SYNOPSIS
8
9 #include <openssl/ct.h>
10
11=head1 DESCRIPTION
12
13This library implements Certificate Transparency (CT) verification for TLS
14clients, as defined in RFC 6962. This verification can provide some confidence
15that a certificate has been publicly logged in a set of CT logs.
16
17By default, these checks are disabled. They can be enabled using
8b12a3e7 18SSL_CTX_ct_enable() or SSL_ct_enable().
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19
20This library can also be used to parse and examine CT data structures, such as
21Signed Certificate Timestamps (SCTs), or to read a list of CT logs. There are
22functions for:
23- decoding and encoding SCTs in DER and TLS wire format.
24- printing SCTs.
25- verifying the authenticity of SCTs.
26- loading a CT log list from a CONF file.
27
28=head1 SEE ALSO
29
30L<d2i_SCT_LIST(3)>,
31L<CTLOG_STORE_new(3)>,
cfd20f64 32L<CTLOG_STORE_get0_log_by_id(3)>,
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33L<SCT_new(3)>,
34L<SCT_print(3)>,
56f3f714 35L<SCT_validate(3)>,
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36L<SCT_validate(3)>,
37L<CT_POLICY_EVAL_CTX_new(3)>,
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38L<SSL_CTX_set_ct_validation_callback(3)>
39
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40=head1 HISTORY
41
42This library was added in OpenSSL 1.1.0.
43
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44=head1 COPYRIGHT
45
9e183d22 46Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
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47
48Licensed under the OpenSSL license (the "License"). You may not use
49this file except in compliance with the License. You can obtain a copy
50in the file LICENSE in the source distribution or at
51L<https://www.openssl.org/source/license.html>.
52
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