Lab Encrypted Storage library.
· Encrypted key-value storage library for Android. Uses Google's EncryptedSharedPreferences and SharedPreferences as the backing storage in synchronous mode.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window labencryptedstorage-0.10.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.