gnutls_x509_ext_import_key_usage(3) | gnutls | gnutls_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);
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>.
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