X509_get_key_usage
LCRYPTO_USED(X509_get_key_usage);
LCRYPTO_ALIAS(X509_get_key_usage);
uint32_t X509_get_key_usage(X509 *x);
if (X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE)
if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
if (!(X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE))
if (X509_get_key_usage(x) != (KU_KEY_CERT_SIGN | KU_CRL_SIGN)) {
if (X509_get_key_usage(x) != KU_DIGITAL_SIGNATURE) {