关键词: 无线射频识别, 安全通信, 认证协议, 加密, 流密码

Abstract: As the security problems in RFID become more and more serious, secure communication is receiving more and more attention. The premise of secure communication is security authentication protocol and security encryption. The paper proposes the security mechanism combining Grain-v1 algorithm and security authentication protocol in homegrown standard. This paper discusses the advantages and disadvantages of both foreign standards and homegrown standard about RFID, and we explain bidirectional authentication protocol and secure communication protocol in detail. Taking the use of less resource and easier implementation into consideration, we choose Grain-v1 stream cipher and illustrate its algorithm principle, analyze the changes of internal state and design hardware architecture, this paper implements simulation and debugging on software. At last, we discuss the grain-s security safety and its improvement.

Key words: radio frequency identification (RFID), secure communication, authentication protocol, encryption, stream cipher