Android File Cryptography

Question

How to make encryption and decryption on an application\'s files in sd-card? so that i may secure the files on the sdcard and no other person will be able to access outside of

Answer 1

You can simply encrypt the contents of the file while writing it to the file and then while retrieving decrypt it. SIMPLE EXAMPLE : link provided shows an example code for encrypt/Decrypt a string. Hope it helps