SMS Security with RC4 Algorithm on Android OS

Abstract

hort Message Service (SMS) is a text messaging service component of mobile communication systems. It uses standardized communications protocols to exchange short text between mobile devices. SMS does not have any built-in procedure to offer security for the text transmitted as data. Most of the applications for mobile devices are designed and developed without taking security into consideration. In practical use, SMS messages are not encrypted by default during transmission. Confidentiality is the concept of ensuring that data is not made available or disclosed to unauthorized people. Confidentially is achieved through encryption. Both symmetric and asymmetric encryption can be used. Confidentiality was the original purpose of cryptography. Therefore, SMS Security on Android will be developed in the paper. It includes SMS network architecture and cryptographic protocols as theory background.