openssl/doc/man7/ct.pod

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=pod
=head1 NAME
ct - Certificate Transparency
=head1 SYNOPSIS
#include <openssl/ct.h>
=head1 DESCRIPTION
This library implements Certificate Transparency (CT) verification for TLS
clients, as defined in RFC 6962. This verification can provide some confidence
that a certificate has been publicly logged in a set of CT logs.
By default, these checks are disabled. They can be enabled using
L<SSL_CTX_enable_ct(3)> or L<SSL_enable_ct(3)>.
This library can also be used to parse and examine CT data structures, such as
Signed Certificate Timestamps (SCTs), or to read a list of CT logs. There are
functions for:
- decoding and encoding SCTs in DER and TLS wire format.
- printing SCTs.
- verifying the authenticity of SCTs.
- loading a CT log list from a CONF file.
=head1 SEE ALSO
L<d2i_SCT_LIST(3)>,
L<CTLOG_STORE_new(3)>,
L<CTLOG_STORE_get0_log_by_id(3)>,
L<SCT_new(3)>,
L<SCT_print(3)>,
L<SCT_validate(3)>,
L<SCT_validate(3)>,
L<CT_POLICY_EVAL_CTX_new(3)>,
L<SSL_CTX_set_ct_validation_callback(3)>
=head1 HISTORY
The ct library was added in OpenSSL 1.1.0.
=head1 COPYRIGHT
Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (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
L<https://www.openssl.org/source/license.html>.
=cut