【摘要】 为解决WSN终端的数据安全及网关与终端之间的数据传输安全问题。针对WSN的特点,利用MD5、改进CBC模式(ICBC)下的AES算法,设计了一种基于可信计算的认证机制。使用了双口令、智能卡、机器指纹识别、WSN特征信息、终端机器指纹、随机数等元素实现了用户与WSN终端、WSN终端与WSN网关的相互认证,强化了用户域、传输域的安全性。仿真结果表明,ICBC模式下的AES算法可对任意长度的数据进行加密,并能稳定工作,获得正确、可靠的结果。使用ICBC模式下AES算法的可信计算的认证机制可以很好地加强WSN终端和网关的安全。更多还原

【Abstract】 This paper’s purpose is to solve the security of the data in the terminal of wireless sensor networks(WSN) and the transmission between gateway and the terminal in WSN. According to the characteristics of WSN, an integrated authentication mechanism of users and transmission based on the laws of trusted computing is designed by using MD5 and improved-CBC AES algorithm. This mechanism, based on two-password, intelligent card, computer fingerprint, characteristics of WSN and random numbers, implements the authentication between users and terminal of WSN, between terminal and gateway of WSN. Therefore the security of user’s region and transmission’s region is improved. Finally, the stability, validity and adaptability of encryption data with inconstant length of ICBC are proved by simulation. So it is concluded that the mechanism proposed in this paper can solve the security problem in WSN.更多还原