Data Encryption Using Modified AES for Android Mobile

Abstract

Smartphones are very common and deal with sensitive information. The personal information is very important and should be protected. Data is often exposed to attack because it is considered confidential data. There are many applications on smartphones uses passwords to protect data in mobile, these applications are weak because the password is easily broken. For this reason, encryption algorithm should be used to preserve data in mobile and encryption is very important for keep in confidential data. There are many of encryption algorithms to ensure the data but should be the select the algorithm depended on the fast, strong and implementation. For that choose the advanced encryption standard (AES) algorithm for encryption data because speed and easy implementation on small devices and has some the feature for it, and modified AES for increased speed computation process for encryption and decryption, and efficiency of security of file encryption.