EVP_R_NO_KEYMGMT_PRESENT:196:no keymgmt present
EVP_R_NO_KEY_SET:154:no key set
EVP_R_NO_OPERATION_SET:149:no operation set
+EVP_R_NULL_MAC_PKEY_CTX:208:null mac pkey ctx
EVP_R_ONLY_ONESHOT_SUPPORTED:177:only oneshot supported
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE:150:\
operation not supported for this keytype