dane_verify_crt(3) gnutls dane_verify_crt(3)
NAME
dane_verify_crt - API function
SYNOPSIS
#include <gnutls/dane.h>
dane_verify_crt(3) s, const gnutls_datum_t * chain,
unsigned chain_size, gnutls_certificate_type_t chain_type, const char *
hostname, const char * proto, unsigned int port, unsigned int sflags,
unsigned int vflags, unsigned int * verify);
ARGUMENTS
dane_state_t s
A DANE state structure (may be NULL)
const gnutls_datum_t * chain
A certificate chain
unsigned chain_size
The size of the chain
gnutls_certificate_type_t chain_type
The type of the certificate chain
const char * hostname
The hostname associated with the chain
const char * proto
The protocol of the service connecting (e.g. tcp)
unsigned int port
The port of the service connecting (e.g. 443)
unsigned int sflags
Flags for the initialization of s (if NULL)
unsigned int vflags
Verification flags; an OR'ed list of dane_verify_flags_t.
unsigned int * verify
An OR'ed list of dane_verify_status_t.
DESCRIPTION
This function will verify the given certificate chain against the CA
constrains and/or the certificate available via DANE. If no
information via DANE can be obtained the flag DANE_VERIFY_NO_DANE_INFO
is set. If a DNSSEC signature is not available for the DANE record then
the verify flag DANE_VERIFY_NO_DNSSEC_DATA is set.
Due to the many possible options of DANE, there is no single threat
model countered. When notifying the user about DANE verification
results it may be better to mention: DANE verification did not reject
the certificate, rather than mentioning a successful DANE verification.
Note that this function is designed to be run in addition to PKIX -
certificate chain - verification. To be run independently the
DANE_VFLAG_ONLY_CHECK_EE_USAGE flag should be specified; then the
function will check whether the key of the peer matches the key
advertised in the DANE entry.
RETURNS
a negative error code on error and DANE_E_SUCCESS (0) when the DANE
entries were successfully parsed, irrespective of whether they were
verified (see verify for that information). If no usable entries were
encountered DANE_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
REPORTING BUGS
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
COPYRIGHT
Copyright (C) 2001-2023 Free Software Foundation, Inc., and others.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
SEE ALSO
The full documentation for gnutls is maintained as a Texinfo manual.
If the /usr/share/doc/gnutls/ directory does not contain the HTML form
visit
https://www.gnutls.org/manual/
gnutls 3.8.2 dane_verify_crt(3)
gnutls 3.8.2 - Generated Wed Nov 15 16:30:03 CST 2023