NAME

       gnutls_openpgp_crt_get_subkey_usage - API function

SYNOPSIS

       #include <gnutls/openpgp.h>

       int  gnutls_openpgp_crt_get_subkey_usage(gnutls_openpgp_crt_t  key,  unsigned  int  idx,  unsigned  int *
       key_usage);

ARGUMENTS

       gnutls_openpgp_crt_t key
                   should contain a gnutls_openpgp_crt_t type

       unsigned int idx
                   the subkey index

       unsigned int * key_usage
                   where the key usage bits will be stored

DESCRIPTION

       This function will return certificate's key usage, by checking the key algorithm.  The  key  usage  value
       will ORed values of GNUTLS_KEY_DIGITAL_SIGNATURE or GNUTLS_KEY_KEY_ENCIPHERMENT.

       A negative error code may be returned in case of parsing error.

RETURNS

       key usage value.

SINCE

       2.4.0

REPORTING BUGS

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

COPYRIGHT

       Copyright © 2001-2021 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

       http://www.gnutls.org/manual/

gnutls                                               3.4.10               gnutls_openpgp_crt_get_subkey_usage(3)