Automatically generated by Pod::Man 4.14 (Pod::Simple 3.42)

Standard preamble:
========================================================================
..

..

.. 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 -- \(*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\} . 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.

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'.
.. .nr rF 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 . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . 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 . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . 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 .\} ========================================================================

Title "SCT_VALIDATE 3ossl" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
SCT_validate, SCT_LIST_validate, SCT_get_validation_status - checks Signed Certificate Timestamps (SCTs) are valid Header "SYNOPSIS" .Vb 1 #include <openssl/ct.h> \& typedef enum { SCT_VALIDATION_STATUS_NOT_SET, SCT_VALIDATION_STATUS_UNKNOWN_LOG, SCT_VALIDATION_STATUS_VALID, SCT_VALIDATION_STATUS_INVALID, SCT_VALIDATION_STATUS_UNVERIFIED, SCT_VALIDATION_STATUS_UNKNOWN_VERSION } sct_validation_status_t; \& int SCT_validate(SCT *sct, const CT_POLICY_EVAL_CTX *ctx); int SCT_LIST_validate(const STACK_OF(SCT) *scts, CT_POLICY_EVAL_CTX *ctx); sct_validation_status_t SCT_get_validation_status(const SCT *sct); .Ve Header "DESCRIPTION" \fBSCT_validate() will check that an \s-1SCT\s0 is valid and verify its signature. \fBSCT_LIST_validate() performs the same checks on an entire stack of SCTs. The result of the validation checks can be obtained by passing the \s-1SCT\s0 to \fBSCT_get_validation_status().

A \s-1CT_POLICY_EVAL_CTX\s0 must be provided that specifies:

The certificate the \s-1SCT\s0 was issued for. .Sp Failure to provide the certificate will result in the validation status being \s-1SCT_VALIDATION_STATUS_UNVERIFIED.\s0 The issuer of that certificate. .Sp This is only required if the \s-1SCT\s0 was issued for a pre-certificate (see \s-1RFC 6962\s0). If it is required but not provided, the validation status will be \s-1SCT_VALIDATION_STATUS_UNVERIFIED.\s0 A \s-1CTLOG_STORE\s0 that contains the \s-1CT\s0 log that issued this \s-1SCT.\s0 .Sp If the \s-1SCT\s0 was issued by a log that is not in this \s-1CTLOG_STORE,\s0 the validation status will be \s-1SCT_VALIDATION_STATUS_UNKNOWN_LOG.\s0

If the \s-1SCT\s0 is of an unsupported version (only v1 is currently supported), the validation status will be \s-1SCT_VALIDATION_STATUS_UNKNOWN_VERSION.\s0

If the \s-1SCT\s0's signature is incorrect, its timestamp is in the future (relative to the time in \s-1CT_POLICY_EVAL_CTX\s0), or if it is otherwise invalid, the validation status will be \s-1SCT_VALIDATION_STATUS_INVALID.\s0

If all checks pass, the validation status will be \s-1SCT_VALIDATION_STATUS_VALID.\s0

Header "NOTES" A return value of 0 from SCT_LIST_validate() should not be interpreted as a failure. At a minimum, only one valid \s-1SCT\s0 may provide sufficient confidence that a certificate has been publicly logged. Header "RETURN VALUES" \fBSCT_validate() returns a negative integer if an internal error occurs, 0 if the \s-1SCT\s0 fails validation, or 1 if the \s-1SCT\s0 passes validation.

\fBSCT_LIST_validate() returns a negative integer if an internal error occurs, 0 if any of SCTs fails validation, or 1 if they all pass validation.

\fBSCT_get_validation_status() returns the validation status of the \s-1SCT.\s0 If SCT_validate() or SCT_LIST_validate() have not been passed that \s-1SCT,\s0 the returned value will be \s-1SCT_VALIDATION_STATUS_NOT_SET.\s0

Header "SEE ALSO" \fBct\|(7) Header "HISTORY" These functions were added in OpenSSL 1.1.0. Header "COPYRIGHT" Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (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>.