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							|  |  |  | =head1 NAME | 
					
						
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							|  |  |  | ct - Certificate Transparency | 
					
						
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							|  |  |  | =head1 SYNOPSIS | 
					
						
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							|  |  |  |  #include <openssl/ct.h> | 
					
						
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							|  |  |  | =head1 DESCRIPTION | 
					
						
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							|  |  |  | 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. | 
					
						
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							|  |  |  | By default, these checks are disabled. They can be enabled using | 
					
						
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										 |  |  | L<SSL_CTX_enable_ct(3)> or L<SSL_enable_ct(3)>. | 
					
						
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							|  |  |  | 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. | 
					
						
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							|  |  |  | =head1 SEE ALSO | 
					
						
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							|  |  |  | L<d2i_SCT_LIST(3)>, | 
					
						
							|  |  |  | L<CTLOG_STORE_new(3)>, | 
					
						
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										 |  |  | L<CTLOG_STORE_get0_log_by_id(3)>, | 
					
						
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										 |  |  | L<SCT_new(3)>, | 
					
						
							|  |  |  | L<SCT_print(3)>, | 
					
						
							|  |  |  | L<SCT_validate(3)>, | 
					
						
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										 |  |  | L<SCT_validate(3)>, | 
					
						
							|  |  |  | L<CT_POLICY_EVAL_CTX_new(3)>, | 
					
						
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										 |  |  | L<SSL_CTX_set_ct_validation_callback(3)> | 
					
						
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										 |  |  | =head1 HISTORY | 
					
						
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										 |  |  | The ct library was added in OpenSSL 1.1.0. | 
					
						
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										 |  |  | =head1 COPYRIGHT | 
					
						
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										 |  |  | Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved. | 
					
						
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										 |  |  | Licensed under the Apache License 2.0 (the "License").  You may not use | 
					
						
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										 |  |  | 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>. | 
					
						
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										 |  |  | =cut |