Privacy Security of Multiuser on Multilevel System using XOR

Abstract

Privacy security of multiuser on multilevel system is considered in this work. On communication there is a chance for the eavesdropper’s to secretly listen to the conversation. In order to confuse the eavesdropper’s, the transmitter sends information signal to both the receiver and eavesdropper. But the orginal message is send to the receiver and the information signal which looks same as the original message is send to the eavesdropper. The existing system says that if the eavesdropper is of lower quality than the transmitter that is transmitter having higher quality then it is easy for the transmitter to avoid the interface and send the information safely. Client send the original message to the user at the same time the fake message or artificial message which is same as the original message is send to the eavesdropper. The original message which is sending to the client is cleaned before reaching to the recipient. In the previous work there is a chance for the eavesdropper’s to view the message and add any noise to the orginal data. It is not secure so in the enhancement of work I encrypted the original message and send to the receiver . The message which looks same as the original message is send to the eavesdropper .Since the orginal message is encrypted it is not viewed by the eavesdropper. The receiver then obtained the original message which is in the encrypted form is decrypted by using XOR system.