Edit File: ct.7ssl
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No user-serviceable parts. . \" fudge factors for nroff and troff .if n \{\ . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] \fP .\} .if t \{\ . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff .if n \{\ . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E . \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "CT 7" .TH CT 7 "2023-09-11" "1.1.1w" "OpenSSL" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" ct \- Certificate Transparency .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/ct.h> .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" This library implements Certificate Transparency (\s-1CT\s0) verification for \s-1TLS\s0 clients, as defined in \s-1RFC 6962.\s0 This verification can provide some confidence that a certificate has been publicly logged in a set of \s-1CT\s0 logs. .PP By default, these checks are disabled. They can be enabled using \&\fBSSL_CTX_enable_ct\fR\|(3) or \fBSSL_enable_ct\fR\|(3). .PP This library can also be used to parse and examine \s-1CT\s0 data structures, such as Signed Certificate Timestamps (SCTs), or to read a list of \s-1CT\s0 logs. There are functions for: \&\- decoding and encoding SCTs in \s-1DER\s0 and \s-1TLS\s0 wire format. \&\- printing SCTs. \&\- verifying the authenticity of SCTs. \&\- loading a \s-1CT\s0 log list from a \s-1CONF\s0 file. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBd2i_SCT_LIST\fR\|(3), \&\fBCTLOG_STORE_new\fR\|(3), \&\fBCTLOG_STORE_get0_log_by_id\fR\|(3), \&\fBSCT_new\fR\|(3), \&\fBSCT_print\fR\|(3), \&\fBSCT_validate\fR\|(3), \&\fBSCT_validate\fR\|(3), \&\fBCT_POLICY_EVAL_CTX_new\fR\|(3), \&\fBSSL_CTX_set_ct_validation_callback\fR\|(3) .SH "HISTORY" .IX Header "HISTORY" The ct library was added in OpenSSL 1.1.0. .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2016\-2017 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.
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