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gnutls_x509_crt_check_key_purpose(3) — Linux manual page

gnutls_x509_c...ck_key_purpose(3) gnutlsgnutls_x509_c...ck_key_purpose(3)

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_tcert,const char *purpose, unsignedflags);

ARGUMENTS        top

       gnutls_x509_crt_t cert                   should contain agnutls_x509_crt_ttype       const char * purpose                   a key purpose OID (e.g.,GNUTLS_KP_CODE_SIGNING)       unsigned flags                   zero orGNUTLS_KP_FLAG_DISALLOW_ANY

DESCRIPTION        top

       This function will check whether the given certificate matches the       provided key purpose. Ifflags containsGNUTLS_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

       3.5.6

REPORTING BUGS        top

       Report bugs to <bugs@gnutls.org>.       Home page:https://www.gnutls.org

COPYRIGHT        top

       Copyright © 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        top

       The full documentation forgnutlsis maintained as a Texinfo       manual.  If the /usr/share/doc/gnutls/ directory does not contain       the HTML form visithttps://www.gnutls.org/manual/

COLOPHON        top

       This page is part of theGnuTLS (GnuTLS Transport Layer Security       Library) project.  Information about the project can be found at       ⟨http://www.gnutls.org/⟩.  If you have a bug report for this       manual page, send it to bugs@gnutls.org.  This page was obtained       from the tarball fetched from       ⟨https://www.gnupg.org/ftp/gcrypt/gnutls/⟩ on 2025-08-11.  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 isnot part of the original manual page),       send a mail to man-pages@man7.orggnutls                            3.8.10gnutls_x509_c...ck_key_purpose(3)

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