diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/DuaContext.kt b/PublicComponent/src/main/java/com/arialyy/aria/core/DuaContext.kt
index f00a923f..c6a650db 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/DuaContext.kt
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/DuaContext.kt
@@ -17,6 +17,7 @@ package com.arialyy.aria.core
 
 import android.annotation.SuppressLint
 import com.arialyy.aria.core.service.ServiceManager
+import kotlinx.coroutines.MainScope
 
 /**
  * @Author laoyuyu
@@ -28,6 +29,7 @@ internal object DuaContext {
   const val DB_SERVICE = "DB_SERVICE"
 
   private val serviceArray = arrayOf(DB_SERVICE)
+  val duaScope = MainScope()
 
   fun isService(serviceName: String) = serviceName in serviceArray
 
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/service/DbService.kt b/PublicComponent/src/main/java/com/arialyy/aria/core/service/DbService.kt
index 3046f481..ed431f17 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/service/DbService.kt
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/service/DbService.kt
@@ -27,7 +27,7 @@ import com.arialyy.aria.util.ReflectionUtil
  * @Description
  * @Date 19:36 AM 2023/1/16
  **/
-internal class DbService : IService {
+class DbService : IService {
   private var duaDb: DuaDb? = null
 
   /**
@@ -48,11 +48,7 @@ internal class DbService : IService {
     }
   }
 
-  // fun findDEntity(dId: Int): DEntity? {
-  //   if (duaDb == null) {
-  //     return null
-  //   }
-  // }
+  fun getDuaDb() = duaDb
 
   override fun init(context: Context) {
     var customDb = findCustomDatabase(context)
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/service/ServiceManager.kt b/PublicComponent/src/main/java/com/arialyy/aria/core/service/ServiceManager.kt
index 243545a0..85d7dd8e 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/service/ServiceManager.kt
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/service/ServiceManager.kt
@@ -46,11 +46,11 @@ object ServiceManager {
   /**
    * get datebase service, if already [registerService] custom service, return custom service
    */
-  fun getDbService(serviceName: String): DbService {
-    if (!DuaContext.isService(serviceName)) {
-      throw AriaException("$serviceName Not a service.")
+  fun getDbService(): DbService {
+    if (!DuaContext.isService(DuaContext.DB_SERVICE)) {
+      throw AriaException("${DuaContext.DB_SERVICE} Not a service.")
     }
-    return (serviceCache[serviceName]
-      ?: throw AriaException("service not found: $serviceName")) as DbService
+    return (serviceCache[DuaContext.DB_SERVICE]
+      ?: throw AriaException("service not found: ${DuaContext.DB_SERVICE}")) as DbService
   }
 }
\ No newline at end of file
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/orm/DuaDb.kt b/PublicComponent/src/main/java/com/arialyy/aria/orm/DuaDb.kt
index 0c3dfcb7..1647dc11 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/orm/DuaDb.kt
+++ b/PublicComponent/src/main/java/com/arialyy/aria/orm/DuaDb.kt
@@ -18,19 +18,26 @@ package com.arialyy.aria.orm
 import androidx.room.Database
 import androidx.room.RoomDatabase
 import com.arialyy.aria.orm.dao.DEntityDao
+import com.arialyy.aria.orm.dao.DGEntityDao
+import com.arialyy.aria.orm.dao.MEntityDao
 import com.arialyy.aria.orm.dao.UEntityDao
 import com.arialyy.aria.orm.entity.BlockRecord
 import com.arialyy.aria.orm.entity.DGEntity
 import com.arialyy.aria.orm.entity.MEntity
+import com.arialyy.aria.orm.entity.MKeyInfo
 import com.arialyy.aria.orm.entity.TaskRecord
 import com.arialyy.aria.orm.entity.UEntity
 
 @Database(
-  entities = [DbEntity::class, UEntity::class, DGEntity::class, MEntity::class, TaskRecord::class, BlockRecord::class],
+  entities = [DbEntity::class, UEntity::class, DGEntity::class, MEntity::class, MKeyInfo::class, TaskRecord::class, BlockRecord::class],
   version = 1
 )
 abstract class DuaDb : RoomDatabase() {
   abstract fun getDEntityDao(): DEntityDao
 
   abstract fun getUEntityDao(): UEntityDao
+
+  abstract fun getDGEntityDao(): DGEntityDao
+
+  abstract fun getMEntityDao(): MEntityDao
 }
\ No newline at end of file
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/orm/dao/DEntityDao.kt b/PublicComponent/src/main/java/com/arialyy/aria/orm/dao/DEntityDao.kt
index ab0c5494..d9e5ab1c 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/orm/dao/DEntityDao.kt
+++ b/PublicComponent/src/main/java/com/arialyy/aria/orm/dao/DEntityDao.kt
@@ -26,7 +26,7 @@ import com.arialyy.aria.orm.entity.DEntity
 /**
  * @Author laoyuyu
  * @Description
- * @Date 19:23 AM 2023/1/16
+ * @Date 7:23 AM 2023/1/16
  **/
 @Dao
 interface DEntityDao {
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/orm/dao/MEntityDao.kt b/PublicComponent/src/main/java/com/arialyy/aria/orm/dao/MEntityDao.kt
new file mode 100644
index 00000000..bb29b31a
--- /dev/null
+++ b/PublicComponent/src/main/java/com/arialyy/aria/orm/dao/MEntityDao.kt
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * 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.
+ */
+package com.arialyy.aria.orm.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Update
+import com.arialyy.aria.orm.entity.MEntity
+import com.arialyy.aria.orm.entity.MKeyInfo
+
+/**
+ * @Author laoyuyu
+ * @Description
+ * @Date 10:23 AM 2023/1/120
+ **/
+@Dao
+interface MEntityDao {
+
+  @Query("SELECT * FROM MEntity WHERE :savePath=savePath")
+  suspend fun getMEntityByPath(savePath: String): MEntity
+
+  @Update
+  suspend fun update(entity: MEntity)
+
+  @Insert
+  suspend fun insert(entity: MEntity)
+
+  @Delete
+  suspend fun delete(entity: MEntity)
+
+  @Query("SELECT * FROM MKeyInfo WHERE :kId=kId")
+  suspend fun getKeyInfoByKId(kId: Int): MKeyInfo
+}
\ No newline at end of file
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MEntity.kt b/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MEntity.kt
index cf0c18ba..2b869b2d 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MEntity.kt
+++ b/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MEntity.kt
@@ -18,6 +18,10 @@ package com.arialyy.aria.orm.entity
 import androidx.room.Entity
 import androidx.room.Index
 import androidx.room.PrimaryKey
+import com.arialyy.aria.core.DuaContext
+import com.arialyy.aria.orm.DuaDb
+import timber.log.Timber
+import java.util.TimeZone
 
 @Entity(indices = [Index(value = ["sourceUrl", "savePath"])])
 data class MEntity(
@@ -58,4 +62,15 @@ data class MEntity(
    */
   val cacheDir: String? = null
 
-)
+) {
+  fun hasKey() = keyId != -1
+
+  suspend fun getKeyInfo(): MKeyInfo? {
+    if (!hasKey()) {
+      Timber.w("no key info")
+      return null
+    }
+    return DuaContext.getServiceManager().getDbService().getDuaDb()?.getMEntityDao()
+      ?.getKeyInfoByKId(keyId)
+  }
+}
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MKeyInfo.kt b/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MKeyInfo.kt
index 481773fa..b98cf4fa 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MKeyInfo.kt
+++ b/PublicComponent/src/main/java/com/arialyy/aria/orm/entity/MKeyInfo.kt
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * 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.
+ */
 package com.arialyy.aria.orm.entity
 
 import androidx.room.Entity