diff --git a/build.gradle b/build.gradle
index be65aec7..f32663b0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -70,6 +70,8 @@ ext {
 
     roomVersion = "2.2.5"
 
+    sqlCipherVersion = "4.4.0"
+
 
     /*      JavaFX      */
 
diff --git a/persistence/database/RoomBankingPersistence/build.gradle b/persistence/database/RoomBankingPersistence/build.gradle
index 7e904f27..a4c9db2b 100644
--- a/persistence/database/RoomBankingPersistence/build.gradle
+++ b/persistence/database/RoomBankingPersistence/build.gradle
@@ -34,4 +34,6 @@ dependencies {
     kapt "androidx.room:room-compiler:$roomVersion"
     implementation "androidx.room:room-ktx:$roomVersion"
 
+    implementation "net.zetetic:android-database-sqlcipher:$sqlCipherVersion"
+
 }
\ No newline at end of file
diff --git a/persistence/database/RoomBankingPersistence/src/main/java/net/dankito/banking/persistence/RoomBankingPersistence.kt b/persistence/database/RoomBankingPersistence/src/main/java/net/dankito/banking/persistence/RoomBankingPersistence.kt
index 87acc0b8..2a24eb48 100644
--- a/persistence/database/RoomBankingPersistence/src/main/java/net/dankito/banking/persistence/RoomBankingPersistence.kt
+++ b/persistence/database/RoomBankingPersistence/src/main/java/net/dankito/banking/persistence/RoomBankingPersistence.kt
@@ -14,14 +14,22 @@ import net.dankito.banking.ui.model.tan.MobilePhoneTanMedium
 import net.dankito.banking.ui.model.tan.TanGeneratorTanMedium
 import net.dankito.banking.util.persistence.doSaveUrlToFile
 import net.dankito.utils.multiplatform.File
+import net.sqlcipher.database.SQLiteDatabase
+import net.sqlcipher.database.SupportFactory
 
 
-open class RoomBankingPersistence(applicationContext: Context) : IBankingPersistence, IRemitteeSearcher {
+open class RoomBankingPersistence(applicationContext: Context, password: String? = null) : IBankingPersistence, IRemitteeSearcher {
 
-    protected val db = Room.databaseBuilder(
-        applicationContext,
-        BankingDatabase::class.java, "banking-database"
-    ).build()
+    protected val db: BankingDatabase
+
+    init {
+        val passphrase = password?.let { SQLiteDatabase.getBytes(password.toCharArray()) } ?: ByteArray(0)
+        val factory = SupportFactory(passphrase)
+
+        db = Room.databaseBuilder(applicationContext, BankingDatabase::class.java, "banking-database")
+            .openHelperFactory(factory)
+            .build()
+    }
 
 
     override fun saveOrUpdateAccount(customer: TypedCustomer, allCustomers: List<TypedCustomer>) {