Security is becoming increasingly important in a wide range of applications including smart phone accessories, smart metering, personal health monitoring, remote controls and access systems. While security of data and operations has always been a consideration for several of these applications, the rising financial risks and liabilities are driving OEMs to introduce higher levels of security into their designs. The addition of wireless communication is also making security necessary in applications that haven’t required it before, because the raw information can be received by anyone with the right antenna.