diff --git a/include/hardware/keymaster_defs.h b/include/hardware/keymaster_defs.h
index 6e812f2..cec486e 100644
--- a/include/hardware/keymaster_defs.h
+++ b/include/hardware/keymaster_defs.h
@@ -112,6 +112,8 @@
     KM_TAG_ALLOW_WHILE_ON_BODY = KM_BOOL | 506, /* Allow key to be used after authentication timeout
                                                  * if device is still on-body (requires secure
                                                  * on-body sensor. */
+    KM_TAG_UNLOCKED_DEVICE_REQUIRED = KM_BOOL | 508, /* Require the device screen to be unlocked if the
+                                                      * key is used. */
 
     /* Application access control */
     KM_TAG_ALL_APPLICATIONS = KM_BOOL | 600, /* Specified to indicate key is usable by all
@@ -452,6 +454,7 @@
     KM_ERROR_KEYMASTER_NOT_CONFIGURED = -64,
     KM_ERROR_ATTESTATION_APPLICATION_ID_MISSING = -65,
     KM_ERROR_CANNOT_ATTEST_IDS = -66,
+    KM_ERROR_DEVICE_LOCKED = -72,
 
     KM_ERROR_UNIMPLEMENTED = -100,
     KM_ERROR_VERSION_MISMATCH = -101,