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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
gnutls_x509_ext_import_key_usage(3)gnutlsgnutls_x509_ext_import_key_usage(3)
gnutls_x509_ext_import_key_usage - API function
#include <gnutls/x509-ext.h>
int gnutls_x509_ext_import_key_usage(const gnutls_datum_t * ext,
unsigned int * key_usage);
const gnutls_datum_t * ext
the DER encoded extension data
unsigned int * key_usage
where the key usage bits will be stored
This function will return certificate's key usage, by reading the DER
data of the keyUsage X.509 extension (2.5.29.15). The key usage value
will ORed values of the: GNUTLS_KEY_DIGITAL_SIGNATURE,
GNUTLS_KEY_NON_REPUDIATION, GNUTLS_KEY_KEY_ENCIPHERMENT,
GNUTLS_KEY_DATA_ENCIPHERMENT, GNUTLS_KEY_KEY_AGREEMENT,
GNUTLS_KEY_KEY_CERT_SIGN, GNUTLS_KEY_CRL_SIGN,
GNUTLS_KEY_ENCIPHER_ONLY, GNUTLS_KEY_DECIPHER_ONLY.
the certificate key usage, or a negative error code in case of
parsing error. If the certificate does not contain the keyUsage
extension GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
3.3.0
Report bugs to <bugs@gnutls.org>.
Home page: http://www.gnutls.org
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gnutls 3.5.9gnutls_x509_ext_import_key_usage(3)