Design and implementation of an enhanced security layer for Bluetooth

Abstract

This paper proposes a new Enhanced Security Layer (ESL) for Bluetooth. The security level is increased by replacing the encryption with AES and adding in- tegrity protection. As ESL is placed on the top of the standard controller interface, it can be integrated into any Bluetooth implementation. A prototype implementation of ESL is presented. The security processing is implemented in hardware for high performance. The design consumes fewer resources and has higher throughput (214 Mb/s) than the standard design. The programming interface supports straightforward application development.