gnutls_x509_crt_check_key_purpose(3) — Linux manual page



NAME         top

       gnutls_x509_crt_check_key_purpose - API function

SYNOPSIS         top

       #include <gnutls/x509.h>

       unsigned gnutls_x509_crt_check_key_purpose(gnutls_x509_crt_t
       cert, const char * purpose, unsigned flags);

ARGUMENTS         top

       gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       const char * purpose
                   a key purpose OID (e.g., GNUTLS_KP_CODE_SIGNING)

       unsigned flags
                   zero or GNUTLS_KP_FLAG_DISALLOW_ANY

DESCRIPTION         top

       This function will check whether the given certificate matches
       the provided key purpose. If  flags contains
       GNUTLS_KP_FLAG_ALLOW_ANY then it a certificate marked for any
       purpose will not match.

RETURNS         top

       zero if the key purpose doesn't match, and non-zero otherwise.

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001- 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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at
       ⟨⟩.  If you have a bug report for this
       manual page, send it to  This page was obtained
       from the tarball gnutls-3.7.2.tar.xz fetched from
       ⟨⟩ on 2021-08-27.  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to

gnutls                            3.7g.n2utls_x509_crt_check_key_purpose(3)