Agent command manipulation system using two keys encryption model

Cryptography plays a vital role in information security system against malicious attacks. This security system uses some algorithms to scramble data into scribbled text which can only be decrypted by party those possess the associated key. Keys play the most important role in ensuring security of those algorithms. A two keys based method which uses AES as core algorithm is proposed here. This improved method has been developed as application on Android platform which allows the user to encrypt confidential messages before it is transmitted over the network. This application provides a secure, fast and strong encryption of data. There is a huge amount of confusion and diffusion of data during encryption that makes it very hard for an intruder to interpret the encryption pattern and the plain text form of the encrypted data. Comparison between the proposed system and traditional systems show that the proposed one provides enhanced security in data transmission with good performance.