diff --git a/keymaster/4.0/support/Keymaster3.cpp b/keymaster/4.0/support/Keymaster3.cpp
index b2cdbd9..84b3ee1 100644
--- a/keymaster/4.0/support/Keymaster3.cpp
+++ b/keymaster/4.0/support/Keymaster3.cpp
@@ -61,9 +61,12 @@
 }
 
 hidl_vec<V3_0::KeyParameter> convert(const hidl_vec<KeyParameter>& params) {
-    hidl_vec<V3_0::KeyParameter> converted(params.size());
-    for (size_t i = 0; i < params.size(); ++i) {
-        converted[i] = convert(params[i]);
+    std::vector<V3_0::KeyParameter> converted;
+    converted.reserve(params.size());
+    for (const auto& param : params) {
+        // Qualcomm's Keymaster3 implementation behaves oddly if Tag::USER_ID is provided. Filter it
+        // out.  Revert this change when b/73286437 is fixed.
+        if (param.tag != Tag::USER_ID) converted.push_back(convert(param));
     }
     return converted;
 }
diff --git a/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h b/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h
index 9d6501b..ce213bc 100644
--- a/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h
+++ b/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h
@@ -142,24 +142,28 @@
 DECLARE_TYPED_TAG(RSA_PUBLIC_EXPONENT);
 DECLARE_TYPED_TAG(TRUSTED_CONFIRMATION_REQUIRED);
 DECLARE_TYPED_TAG(UNIQUE_ID);
+DECLARE_TYPED_TAG(UNLOCKED_DEVICE_REQUIRED);
 DECLARE_TYPED_TAG(USAGE_EXPIRE_DATETIME);
 DECLARE_TYPED_TAG(USER_AUTH_TYPE);
+DECLARE_TYPED_TAG(USER_ID);
 DECLARE_TYPED_TAG(USER_SECURE_ID);
 
 template <typename... Elems>
 struct MetaList {};
 
-using all_tags_t = MetaList<
-    TAG_INVALID_t, TAG_KEY_SIZE_t, TAG_MAC_LENGTH_t, TAG_CALLER_NONCE_t, TAG_MIN_MAC_LENGTH_t,
-    TAG_RSA_PUBLIC_EXPONENT_t, TAG_INCLUDE_UNIQUE_ID_t, TAG_ACTIVE_DATETIME_t,
-    TAG_ORIGINATION_EXPIRE_DATETIME_t, TAG_USAGE_EXPIRE_DATETIME_t, TAG_MIN_SECONDS_BETWEEN_OPS_t,
-    TAG_MAX_USES_PER_BOOT_t, TAG_USER_SECURE_ID_t, TAG_NO_AUTH_REQUIRED_t, TAG_AUTH_TIMEOUT_t,
-    TAG_ALLOW_WHILE_ON_BODY_t, TAG_APPLICATION_ID_t, TAG_APPLICATION_DATA_t,
-    TAG_CREATION_DATETIME_t, TAG_ROLLBACK_RESISTANCE_t, TAG_ROOT_OF_TRUST_t, TAG_ASSOCIATED_DATA_t,
-    TAG_NONCE_t, TAG_BOOTLOADER_ONLY_t, TAG_OS_VERSION_t, TAG_OS_PATCHLEVEL_t, TAG_UNIQUE_ID_t,
-    TAG_ATTESTATION_CHALLENGE_t, TAG_ATTESTATION_APPLICATION_ID_t, TAG_RESET_SINCE_ID_ROTATION_t,
-    TAG_PURPOSE_t, TAG_ALGORITHM_t, TAG_BLOCK_MODE_t, TAG_DIGEST_t, TAG_PADDING_t,
-    TAG_BLOB_USAGE_REQUIREMENTS_t, TAG_ORIGIN_t, TAG_USER_AUTH_TYPE_t, TAG_EC_CURVE_t>;
+using all_tags_t =
+    MetaList<TAG_INVALID_t, TAG_KEY_SIZE_t, TAG_MAC_LENGTH_t, TAG_CALLER_NONCE_t,
+             TAG_MIN_MAC_LENGTH_t, TAG_RSA_PUBLIC_EXPONENT_t, TAG_INCLUDE_UNIQUE_ID_t,
+             TAG_ACTIVE_DATETIME_t, TAG_ORIGINATION_EXPIRE_DATETIME_t, TAG_USAGE_EXPIRE_DATETIME_t,
+             TAG_MIN_SECONDS_BETWEEN_OPS_t, TAG_MAX_USES_PER_BOOT_t, TAG_USER_ID_t,
+             TAG_USER_SECURE_ID_t, TAG_NO_AUTH_REQUIRED_t, TAG_AUTH_TIMEOUT_t,
+             TAG_ALLOW_WHILE_ON_BODY_t, TAG_UNLOCKED_DEVICE_REQUIRED_t, TAG_APPLICATION_ID_t,
+             TAG_APPLICATION_DATA_t, TAG_CREATION_DATETIME_t, TAG_ROLLBACK_RESISTANCE_t,
+             TAG_ROOT_OF_TRUST_t, TAG_ASSOCIATED_DATA_t, TAG_NONCE_t, TAG_BOOTLOADER_ONLY_t,
+             TAG_OS_VERSION_t, TAG_OS_PATCHLEVEL_t, TAG_UNIQUE_ID_t, TAG_ATTESTATION_CHALLENGE_t,
+             TAG_ATTESTATION_APPLICATION_ID_t, TAG_RESET_SINCE_ID_ROTATION_t, TAG_PURPOSE_t,
+             TAG_ALGORITHM_t, TAG_BLOCK_MODE_t, TAG_DIGEST_t, TAG_PADDING_t,
+             TAG_BLOB_USAGE_REQUIREMENTS_t, TAG_ORIGIN_t, TAG_USER_AUTH_TYPE_t, TAG_EC_CURVE_t>;
 
 template <typename TypedTagType>
 struct TypedTag2ValueType;
@@ -343,6 +347,7 @@
         case Tag::BOOTLOADER_ONLY:
         case Tag::NO_AUTH_REQUIRED:
         case Tag::ALLOW_WHILE_ON_BODY:
+        case Tag::UNLOCKED_DEVICE_REQUIRED:
         case Tag::ROLLBACK_RESISTANCE:
         case Tag::RESET_SINCE_ID_ROTATION:
         case Tag::TRUSTED_CONFIRMATION_REQUIRED:
@@ -357,6 +362,7 @@
         case Tag::OS_VERSION:
         case Tag::OS_PATCHLEVEL:
         case Tag::MAC_LENGTH:
+        case Tag::USER_ID:
         case Tag::AUTH_TIMEOUT:
         case Tag::VENDOR_PATCHLEVEL:
         case Tag::BOOT_PATCHLEVEL:
diff --git a/keymaster/4.0/types.hal b/keymaster/4.0/types.hal
index 91ec9bf..47fd1ed 100644
--- a/keymaster/4.0/types.hal
+++ b/keymaster/4.0/types.hal
@@ -118,7 +118,8 @@
                                                        * boot. */
 
     /* User authentication */
-    // 500-501 reserved
+    // 500 reserved
+    USER_ID = TagType:UINT | 501,             /* Android ID of authorized user or authenticator(s), */
     USER_SECURE_ID = TagType:ULONG_REP | 502, /* Secure ID of authorized user or authenticator(s).
                                                * Disallowed if NO_AUTH_REQUIRED is present. */
     NO_AUTH_REQUIRED = TagType:BOOL | 503,    /* If key is usable without authentication. */
@@ -191,6 +192,9 @@
      * match the data described in the token, keymaster must return NO_USER_CONFIRMATION. */
     TRUSTED_CONFIRMATION_REQUIRED = TagType:BOOL | 508,
 
+    UNLOCKED_DEVICE_REQUIRED = TagType:BOOL | 509, /* Require the device screen to be unlocked if
+                                                    * the key is used. */
+
     /* Application access control */
     APPLICATION_ID = TagType:BYTES | 601, /* Byte string identifying the authorized application. */
 
@@ -471,6 +475,7 @@
     PROOF_OF_PRESENCE_REQUIRED = -69,
     CONCURRENT_PROOF_OF_PRESENCE_REQUESTED = -70,
     NO_USER_CONFIRMATION = -71,
+    DEVICE_LOCKED = -72,
 
     UNIMPLEMENTED = -100,
     VERSION_MISMATCH = -101,