Modified Cellular Message Encryption Algorithm
The Cellular Message Encryption Algorithm (CMEA) has been designed by the TIA (Telecommunication Industry Association) to protect the control data of cellular phone communication. As cellular telephony industry has boomed, the need for security has increased: both for privacy and fraud prevention. Because all cellular communications are sent over a radio link, anyone with the appropriate receiver can passively eavesdrop on all cell phone transmissions in the area without fear of detection. The cellular telephony industry players in particular are especially concerned with fraud prevention. The aim of the paper is to improve the security of the CMEA algorithm.