103 lines
3.3 KiB
HTML
103 lines
3.3 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of CT</TITLE>
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</HEAD><BODY>
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<H1>CT</H1>
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Section: OpenSSL (7SSL)<BR>Updated: 2021-03-22<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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ct - Certificate Transparency
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<PRE>
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#include <<A HREF="file:///usr/include/openssl/ct.h">openssl/ct.h</A>>
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</PRE>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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This library implements Certificate Transparency (<FONT SIZE="-1">CT</FONT>) verification for <FONT SIZE="-1">TLS</FONT>
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clients, as defined in <FONT SIZE="-1">RFC 6962.</FONT> This verification can provide some confidence
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that a certificate has been publicly logged in a set of <FONT SIZE="-1">CT</FONT> logs.
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<P>
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By default, these checks are disabled. They can be enabled using
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<B><A HREF="/cgi-bin/man/man2html?3+SSL_CTX_enable_ct">SSL_CTX_enable_ct</A></B>(3) or <B><A HREF="/cgi-bin/man/man2html?3+SSL_enable_ct">SSL_enable_ct</A></B>(3).
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<P>
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This library can also be used to parse and examine <FONT SIZE="-1">CT</FONT> data structures, such as
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Signed Certificate Timestamps (SCTs), or to read a list of <FONT SIZE="-1">CT</FONT> logs. There are
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functions for:
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- decoding and encoding SCTs in <FONT SIZE="-1">DER</FONT> and <FONT SIZE="-1">TLS</FONT> wire format.
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- printing SCTs.
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- verifying the authenticity of SCTs.
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- loading a <FONT SIZE="-1">CT</FONT> log list from a <FONT SIZE="-1">CONF</FONT> file.
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<A NAME="lbAE"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?3+d2i_SCT_LIST">d2i_SCT_LIST</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+CTLOG_STORE_new">CTLOG_STORE_new</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+CTLOG_STORE_get0_log_by_id">CTLOG_STORE_get0_log_by_id</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+SCT_new">SCT_new</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+SCT_print">SCT_print</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+SCT_validate">SCT_validate</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+SCT_validate">SCT_validate</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+CT_POLICY_EVAL_CTX_new">CT_POLICY_EVAL_CTX_new</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+SSL_CTX_set_ct_validation_callback">SSL_CTX_set_ct_validation_callback</A></B>(3)
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<A NAME="lbAF"> </A>
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<H2>HISTORY</H2>
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The ct library was added in OpenSSL 1.1.0.
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<A NAME="lbAG"> </A>
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<H2>COPYRIGHT</H2>
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Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
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<P>
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Licensed under the OpenSSL license (the ``License''). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file <FONT SIZE="-1">LICENSE</FONT> in the source distribution or at
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<<A HREF="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</A>>.
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="4"><A HREF="#lbAE">SEE ALSO</A><DD>
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<DT id="5"><A HREF="#lbAF">HISTORY</A><DD>
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<DT id="6"><A HREF="#lbAG">COPYRIGHT</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:08 GMT, March 31, 2021
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</BODY>
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</HTML>
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