diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 1133de5..5a60d17 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
+
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+
     <application
         android:name=".App"
         android:allowBackup="true"
diff --git a/core/architecture/src/main/java/com/ama/core/architecture/util/DeviceUtil.kt b/core/architecture/src/main/java/com/ama/core/architecture/util/DeviceUtil.kt
new file mode 100644
index 0000000..d5a6665
--- /dev/null
+++ b/core/architecture/src/main/java/com/ama/core/architecture/util/DeviceUtil.kt
@@ -0,0 +1,90 @@
+package com.ama.core.architecture.util
+
+import android.content.Context
+import android.os.Build
+import android.provider.Settings
+import java.util.*
+
+
+class DeviceUtil private constructor() {
+
+    companion object {
+
+        /**
+         * public method
+         */
+        fun generateDeviceId(context: Context): String {
+            val hardwareUUID = getHardwareUUID()
+            if (hardwareUUID.isNotBlank()) {
+                return hardwareUUID
+            }
+
+            // way2
+            val androidId = getAndroidId(context)
+            if (androidId != null && isValidAndroidId(androidId)) {
+                return UUID.nameUUIDFromBytes(androidId.toByteArray()).toString()
+            }
+
+            // final：there's no other better way
+            return generateAndSaveRandomUUID(context)
+        }
+
+        /**
+         * WAY-1 : Got uuid without any permissions, suggest this way
+         */
+        private fun getHardwareUUID(): String {
+            return try {
+                val hardwareInfo = StringBuilder().apply {
+                    append(Build.BOARD)
+                    append(Build.BRAND)
+                    append(Build.DEVICE)
+                    append(Build.HARDWARE)
+                    append(Build.MANUFACTURER)
+                    append(Build.MODEL)
+                    append(Build.PRODUCT)
+                }.toString()
+
+                if (hardwareInfo.isNotBlank()) {
+                    UUID.nameUUIDFromBytes(hardwareInfo.toByteArray()).toString()
+                } else {
+                    ""
+                }
+            } catch (e: Exception) {
+                ""
+            }
+        }
+
+        /**
+         * WAY-2：got android_ids
+         */
+        private fun getAndroidId(context: Context): String? {
+            return try {
+                Settings.Secure.getString(context.contentResolver, Settings.Secure.ANDROID_ID)
+            } catch (e: Exception) {
+                null
+            }
+        }
+
+
+        private fun isValidAndroidId(androidId: String): Boolean {
+            return androidId.isNotBlank() &&
+                    androidId != "0000000000000000" &&
+                    androidId != "9774d56d682e549c"
+        }
+
+        /**
+         * random uuid and save 2 sp to keep  the same value
+         */
+        private fun generateAndSaveRandomUUID(context: Context): String {
+            val prefs = context.getSharedPreferences("device_id_prefs", Context.MODE_PRIVATE)
+            var savedUuid = prefs.getString("device_uuid", null)
+
+            if (savedUuid == null) {
+                savedUuid = UUID.randomUUID().toString()
+                prefs.edit().putString("device_uuid", savedUuid).apply()
+            }
+
+            return savedUuid
+        }
+    }
+}
\ No newline at end of file
diff --git a/core/architecture/src/main/java/com/ama/core/architecture/util/SpUtil.kt b/core/architecture/src/main/java/com/ama/core/architecture/util/SpUtil.kt
new file mode 100644
index 0000000..9dd463f
--- /dev/null
+++ b/core/architecture/src/main/java/com/ama/core/architecture/util/SpUtil.kt
@@ -0,0 +1,11 @@
+package com.ama.core.architecture.util
+
+
+
+
+class SpUtil private constructor() {
+
+    companion object {
+
+    }
+}
\ No newline at end of file