Abstract: “The advent of Bluetooth technology has made wireless communication easier. Bluetooth as a technology has evolved a lot over the years. Security in any area is given more importance as it leads to better product and satisfied customers. Bluetooth security has evolved a lot with different versions of blue tooth. Keeping in mind the growing list of Bluetooth products in the market, there has been lot of improvements done in the version 4.0 of Bluetooth. The LE (Low Energy) operational mode which is new in version 4.0 has slightly different security features. In this paper, an overview of the Low Energy security aspects is presented. The different security modes, authentication, authorization procedures and data signing procedure are discussed in detail. The paper concludes by listing the ramifications of low energy enhancements in Bluetooth”

Keywords: Bluetooth Low Energy, Data Signing, Static Address and Private Address