The link level security implementation of bluetooth technology /

Bluetooth technology is a de facto global standard for a short-range, low-power and low-cost form of wireless communication. New as it is, the technology is anticipated to play a very important role in an increasingly mobile world.Like almost any other modern communication technology, Bluetooth must be sufficiently secure before it can be widely accepted. This is particularly challenging for Bluetooth due to the fact that it uses radio as the physical communication media. The nature of microwave links, as opposed to fixed cable connections, means that Bluetooth is especially vulnerable to attacks. However, through the use of some well-known and highly-effective cryptographic algorithms, Bluetooth is able to achieve the three most important security goals: secrecy, authenticity and integrity.The focus of the thesis is how Bluetooth translates the theoretical cryptographic techniques into effective real life implementations. Security measures in Bluetooth are taken at both the application level and the link level. In the thesis, the author places the emphasis on the link level measures. Various security areas are discussed, such as random number generation, key management, encryption, authentication, etc. The limitations and weaknesses of Bluetooth security implementations are also discussed, and some suggestions for future improvements are offered