NID_key_usage
{"keyUsage","X509v3 Key Usage",NID_key_usage,3,&(lvalues[493]),0},
return PKCS8_pkey_add1_attr_by_NID(p8, NID_key_usage, V_ASN1_BIT_STRING,
.ext_nid = NID_key_usage,
NID_key_usage, /* 83 */
if ((usage = X509_get_ext_d2i(x, NID_key_usage, &i, NULL))) {