A model of biometric authentication system for network conversational class service

Biometric authentication technology can provide high strength protection for identity authentication, and also an important guarantee for QoE and credibility. However, due to technical gaps and vacancies, there doesn't exist a suitable system for network conversational class service yet. In this paper, a kind of biometric authentication system model is proposed based on the above service type. The composition and implementation of the model is described in detail, and the similarities and differences of each unit are compared and analyzed. In addition, in order to realize the mutual transmission of the authentication relation, a kind of biometric certificate used in the system is designed, and the management of certificate validity is studied emphatically to adapt to session service. The model is realized by Doubango project based on IMS, and the SIP signaling system has been extended necessarily. This proposed system can add biometric support to network conversational class service, and provide high-strength authentication assurance for it.