CT(7SSL) OpenSSL CT(7SSL)
ct - Certificate Transparency
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
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 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.
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),
This library was added in OpenSSL 1.1.0.
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 LICENSE in the source distribution or at
1.1.1 2022-07-04 CT(7SSL)
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