AlkantarClanX12
Your IP : 18.117.156.170
.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings. \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote. \*(C+ will
.\" give a nicer C++. Capital omega is used to do unbreakable dashes and
.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
. ds -- \(*W-
. ds PI pi
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
. ds L" ""
. ds R" ""
. ds C` ""
. ds C' ""
'br\}
.el\{\
. ds -- \|\(em\|
. ds PI \(*p
. ds L" ``
. ds R" ''
. ds C`
. ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD. Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
. if \nF \{\
. de IX
. tm Index:\\$1\t\\n%\t"\\$2"
..
. if !\nF==2 \{\
. nr % 0
. nr F 2
. \}
. \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear. Run. Save yourself. 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_POLICY_EVAL_CTX_NEW 3"
.TH CT_POLICY_EVAL_CTX_NEW 3 "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_POLICY_EVAL_CTX_new, CT_POLICY_EVAL_CTX_free, CT_POLICY_EVAL_CTX_get0_cert, CT_POLICY_EVAL_CTX_set1_cert, CT_POLICY_EVAL_CTX_get0_issuer, CT_POLICY_EVAL_CTX_set1_issuer, CT_POLICY_EVAL_CTX_get0_log_store, CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE, CT_POLICY_EVAL_CTX_get_time, CT_POLICY_EVAL_CTX_set_time \- Encapsulates the data required to evaluate whether SCTs meet a Certificate Transparency policy
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ct.h>
\&
\& CT_POLICY_EVAL_CTX *CT_POLICY_EVAL_CTX_new(void);
\& void CT_POLICY_EVAL_CTX_free(CT_POLICY_EVAL_CTX *ctx);
\& X509* CT_POLICY_EVAL_CTX_get0_cert(const CT_POLICY_EVAL_CTX *ctx);
\& int CT_POLICY_EVAL_CTX_set1_cert(CT_POLICY_EVAL_CTX *ctx, X509 *cert);
\& X509* CT_POLICY_EVAL_CTX_get0_issuer(const CT_POLICY_EVAL_CTX *ctx);
\& int CT_POLICY_EVAL_CTX_set1_issuer(CT_POLICY_EVAL_CTX *ctx, X509 *issuer);
\& const CTLOG_STORE *CT_POLICY_EVAL_CTX_get0_log_store(const CT_POLICY_EVAL_CTX *ctx);
\& void CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(CT_POLICY_EVAL_CTX *ctx,
\& CTLOG_STORE *log_store);
\& uint64_t CT_POLICY_EVAL_CTX_get_time(const CT_POLICY_EVAL_CTX *ctx);
\& void CT_POLICY_EVAL_CTX_set_time(CT_POLICY_EVAL_CTX *ctx, uint64_t time_in_ms);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
A \fB\s-1CT_POLICY_EVAL_CTX\s0\fR is used by functions that evaluate whether Signed
Certificate Timestamps (SCTs) fulfil a Certificate Transparency (\s-1CT\s0) policy.
This policy may be, for example, that at least one valid \s-1SCT\s0 is available. To
determine this, an \s-1SCT\s0's timestamp and signature must be verified.
This requires:
.IP "\(bu" 2
the public key of the log that issued the \s-1SCT\s0
.IP "\(bu" 2
the certificate that the \s-1SCT\s0 was issued for
.IP "\(bu" 2
the issuer certificate (if the \s-1SCT\s0 was issued for a pre-certificate)
.IP "\(bu" 2
the current time
.PP
The above requirements are met using the setters described below.
.PP
\&\fBCT_POLICY_EVAL_CTX_new()\fR creates an empty policy evaluation context. This
should then be populated using:
.IP "\(bu" 2
\&\fBCT_POLICY_EVAL_CTX_set1_cert()\fR to provide the certificate the SCTs were issued for
.Sp
Increments the reference count of the certificate.
.IP "\(bu" 2
\&\fBCT_POLICY_EVAL_CTX_set1_issuer()\fR to provide the issuer certificate
.Sp
Increments the reference count of the certificate.
.IP "\(bu" 2
\&\fBCT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE()\fR to provide a list of logs that are trusted as sources of SCTs
.Sp
Holds a pointer to the \s-1CTLOG_STORE,\s0 so the \s-1CTLOG_STORE\s0 must outlive the
\&\s-1CT_POLICY_EVAL_CTX.\s0
.IP "\(bu" 2
\&\fBCT_POLICY_EVAL_CTX_set_time()\fR to set the time SCTs should be compared with to determine if they are valid
.Sp
The \s-1SCT\s0 timestamp will be compared to this time to check whether the \s-1SCT\s0 was
issued in the future. \s-1RFC6962\s0 states that \*(L"\s-1TLS\s0 clients \s-1MUST\s0 reject SCTs whose
timestamp is in the future\*(R". By default, this will be set to 5 minutes in the
future (e.g. (\fBtime()\fR + 300) * 1000), to allow for clock drift.
.Sp
The time should be in milliseconds since the Unix epoch.
.PP
Each setter has a matching getter for accessing the current value.
.PP
When no longer required, the \fB\s-1CT_POLICY_EVAL_CTX\s0\fR should be passed to
\&\fBCT_POLICY_EVAL_CTX_free()\fR to delete it.
.SH "NOTES"
.IX Header "NOTES"
The issuer certificate only needs to be provided if at least one of the SCTs
was issued for a pre-certificate. This will be the case for SCTs embedded in a
certificate (i.e. those in an X.509 extension), but may not be the case for SCTs
found in the \s-1TLS SCT\s0 extension or \s-1OCSP\s0 response.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBCT_POLICY_EVAL_CTX_new()\fR will return \s-1NULL\s0 if malloc fails.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBct\fR\|(7)
.SH "HISTORY"
.IX Header "HISTORY"
These functions were added in OpenSSL 1.1.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2016 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>.