ct (7)

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NAME

ct - Certificate Transparency

SYNOPSIS

 #include <openssl/ct.h>

DESCRIPTION

This library implements Certificate Transparency () verification for clients, as defined in This verification can provide some confidence that a certificate has been publicly logged in a set of logs.

By default, these checks are disabled. They can be enabled using SSL_CTX_ct_enable() or SSL_ct_enable().

This library can also be used to parse and examine

data structures, such as Signed Certificate Timestamps (SCTs), or to read a list of logs. There are functions for: - decoding and encoding SCTs in and wire format. - printing SCTs. - verifying the authenticity of SCTs. - loading a log list from a file.

SEE ALSO

d2i_SCT_LIST(3), CTLOG_STORE_new(3), CTLOG_STORE_get0_log_by_id(3), SCT_new(3), SCT_print(3), SCT_validate(3), SCT_validate(3), CT_POLICY_EVAL_CTX_new(3), SSL_CTX_set_ct_validation_callback(3)

HISTORY

This library was added in OpenSSL 1.1.0.

COPYRIGHT

Copyright 2016-2017 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

in the source distribution or at <www.openssl.org/source/license.html>.