Date Added: Oct 2009
Security in wireless networks is of paramount importance. Due to the broadcast nature of the wireless radio signals, wireless networks are implicitly vulnerable to several network attacks. Anyone within the wireless transmission range of a device (including malicious users or attackers) is able to passively listen to or eavesdrop on the signals and could potentially access information from the signals. It is also possible to actively transmit signals that can attack the network. Encryption algorithms play good roles in Information Security Systems (ISS). Those algorithms consume a significant amount of computing resources such as CPU time, memory, and battery power.