基于AES算法汽车门禁系统的设计与研究

Design and Research of Car Access System Based on AES Algorithm 

摘要:

针对汽车采用传统机械方式打开车门操作复杂、安全系数低等问题,设计了汽车智能门禁控制系统;通过车载基站与智能钥匙的双频通信,实现了车门的开与关,根据钥匙的位置,还可实现发动机的一键启动;考虑到无线通信的随机性和可变性,为保证信号传输安全,系统采用AES算法加密技术,加入了动态循环扩展密钥,并对整个系统进行MATLAB建模仿真;实验研究结果表明,系统加密性能好,密码破解率仅为,当信噪比为10 dB时,系统误码率小于10-4,符合无线通信系统的性能指标要求。

Abstract:

For automobile using the way of traditional mechanical to open door with the problem of complex operation and low safety , designed the car intelligent access control system. By car base station with smart key dual communications, opening and closing of the door, according to a key position, but also to achieve a key to start the engine. Considering the randomness and variability of wireless communication, in order to ensure security of signal transmission, systems used the AES encryption algorithm, adding a cyclic extension of dynamic keys, and the entire system for modeling and simulation of MATLAB. Experimental results show that the system encryption performance was good, password cracking was only, when the SNR is 10dB, the system bit error rate of less than10-4, meeting the performance requirements of wireless communication systems.