Provided by: gnutls-doc_3.4.10-4ubuntu1.9_all 

NAME
gnutls_openpgp_crt_get_key_usage - API function
SYNOPSIS
#include <gnutls/openpgp.h>
int gnutls_openpgp_crt_get_key_usage(gnutls_openpgp_crt_t key, unsigned int * key_usage);
ARGUMENTS
gnutls_openpgp_crt_t key
should contain a gnutls_openpgp_crt_t type
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 the: GNUTLS_KEY_DIGITAL_SIGNATURE, GNUTLS_KEY_KEY_ENCIPHERMENT.
RETURNS
GNUTLS_E_SUCCESS on success, or an error code.
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_key_usage(3)