diff --git a/authsecret/aidl/Android.bp b/authsecret/aidl/Android.bp
index 8fe9f27..432c1b9 100644
--- a/authsecret/aidl/Android.bp
+++ b/authsecret/aidl/Android.bp
@@ -22,4 +22,5 @@
             },
         },
     },
+    versions: ["1"],
 }
diff --git a/authsecret/aidl/aidl_api/android.hardware.authsecret/1/.hash b/authsecret/aidl/aidl_api/android.hardware.authsecret/1/.hash
new file mode 100644
index 0000000..4a5c24a
--- /dev/null
+++ b/authsecret/aidl/aidl_api/android.hardware.authsecret/1/.hash
@@ -0,0 +1 @@
+729cca96cb4732246b6ed1b3d15e2cbe63413afd
diff --git a/authsecret/aidl/aidl_api/android.hardware.authsecret/1/android/hardware/authsecret/IAuthSecret.aidl b/authsecret/aidl/aidl_api/android.hardware.authsecret/1/android/hardware/authsecret/IAuthSecret.aidl
new file mode 100644
index 0000000..76b96f2
--- /dev/null
+++ b/authsecret/aidl/aidl_api/android.hardware.authsecret/1/android/hardware/authsecret/IAuthSecret.aidl
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.authsecret;
+@VintfStability
+interface IAuthSecret {
+  oneway void setPrimaryUserCredential(in byte[] secret);
+}