A Research On The Pulse Biometric-based Security For Information Transmission In Wireless Body Area Network (WBAN)

Wireless Body Area Network (WBAN) began a wide range of applications in the consumer electronics, entertainment, sports, ambient intelligence, ubiquitous computing, military or security fields during recent years. However, faced with a series of challenges in low energy consumption, security, etc. which seriously hampered the applications of WBAN. Traditional "device-centric" key management mechanism not only cannot meet the new security requirements but also difficult to adapt to the new low-power limiting system environment.Therefore, this paper will combines the biometrics with cryptography, and investigates "human-centered"biometric key protection and biometric key distribution techniques. Because biometric information has a noisy blurred and difficult to revoke replace other characteristics, biological key technology research faces many new challenges:one is the safety issue, namely, how to ensure the safety and privacy of biometric attributes of digital keys; the second is the accuracy of the problem, namely, how to overcome the contradictions and vagueness biometric information accuracy between digital keys; the third is the template length the question of how to reduce the energy needed for the amount of bio-key distribution and consumption of data transmission.1) For existing biometric extraction and representation cannot be directly applied to the problem of biological pulse key algorithm. In this paper, based on the existing biometric VitaCode extraction and representation we devised a measure of pulse biometric representation, which provides a proper and accurate data base for the biological key distribution scheme.2) Based on VitaCode pulse feature provides a suitable representation and an accurate pulse on the basis of biometric data, we design a biological key distribution scheme based on biometric pulse and reconstruction characteristic polynomial.3) For pulse biological key distribution scheme, we further designed a key management scheme. This program can not only realize the identity of the individual organism within WBAN sensor nodes certification, and can effectively guarantee the confidentiality of data transmission, the integrity and the security front.4) Experiments show that:the pulse extracting biometric representation method can provide a suitable and accurate biometric data pulse biological key algorithm; pulse biometric can overcome the fuzziness, improve the accuracy of the pulse of the biological key; in particular, to reduce the length of the template, reducing energy wireless body area network in key distribution consumption.