Solving the Authentication Problem for Real-Time Data Streams
Fang Nian Wang, Shen Shen Wang, Wan Fang Che, Yun Bai, Cong Niu · Applied Mechanics and Materials · 2014
For the authentication problem of real-time data stream, the authentication schemes for real-time data stream based on digital signature are studied in this paper. According to the transmission characteristics of real-time data stream, the concept of authentication window is proposed, and three authentication schemes are designed based on the hash function and digital signature technology. In the three schemes, the authentication information of a packet is taken by itself, the next one, and the previous one, respectively. The structure and process of each scheme are presented. The authentication efficiency is studied from the two aspects of transmission density and authentication window, and the dynamic value of authentication window is also researched. Simulation results show that the second scheme has better performance, suitable for the authentication of real-time data stream travelling over insecure network.