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gnutls_pkcs11_crt_is_known(3) — Linux manual page

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON 

gnutls_pkcs11_crt_is_known(3)     gnutls    gnutls_pkcs11_crt_is_known(3)

NAME         top

       gnutls_pkcs11_crt_is_known - API function

SYNOPSIS         top

       #include <gnutls/pkcs11.h>

       unsigned gnutls_pkcs11_crt_is_known(const char * url,
       gnutls_x509_crt_t cert, unsigned int flags);

ARGUMENTS         top

       const char * url
                   A PKCS 11 url identifying a token

       gnutls_x509_crt_t cert
                   is the certificate to find issuer for

       unsigned int flags
                   Use zero or flags from GNUTLS_PKCS11_OBJ_FLAG.

DESCRIPTION         top

       This function will check whether the provided certificate is
       stored in the specified token. This is useful in combination with
       GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_TRUSTED or
       GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_DISTRUSTED, to check whether a CA
       is present or a certificate is distrusted in a trust PKCS 11
       module.

       This function can be used with a  url of "pkcs11:", and in that
       case all modules will be searched. To restrict the modules to the
       marked as trusted in p11-kit use the
       GNUTLS_PKCS11_OBJ_FLAG_PRESENT_IN_TRUSTED_MODULE flag.

       Note that the flag GNUTLS_PKCS11_OBJ_FLAG_RETRIEVE_DISTRUSTED is
       specific to p11-kit trust modules.

RETURNS         top

       If the certificate exists non-zero is returned, otherwise zero.

SINCE         top

       3.3.0

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 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/

COLOPHON         top

       This page is part of the GnuTLS (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 is not part of the original manual page),
       send a mail to man-pages@man7.org

gnutls                            3.8.10    gnutls_pkcs11_crt_is_known(3)

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