摘要
针对常规RFID系统对信息控制的不足,提出了一种基于辐射源识别的无源RFID系统的信息监控方法。采集无源RFID标签的辐射射频信号,变换为新的对数谱射频指纹,并进行特征提取与识别,获得标签身份真伪结果;把射频指纹等集成到读写器应用层协议,实现标签与读写器之间信息的控制。建模、仿真与实验表明,对数谱射频指纹仅由标签的频偏与冲击响应决定,具有稳健性等;给出了融合提出指纹的RFID系统挑战——应答认证协议实例。提出方法不仅能增强标签与读写器的认证安全强度,而且能实现通信中标签的身份监控,对于解决密钥泄漏检测公开问题也有一定贡献。
To make up for the shortcomings of the information control in RFID systems, an information monitor method of passive RFID systems based on emitter identification was proposed. The emitted RF signal of the passive RFID tag was acquired and transformed into logarithm spectrum RF fingerprint, the features were extracted and classified, and the authenticity of the tag was obtained, the application layer protocol of the reader was integrated with the RF fingerprint etc., and the control of the information between the tag and reader was achieved. It was demonstrated with modeling, simulation and experiments that the novel fingerprint was solely determined by the frequency offset and impulse response of the tag, and had stability etc., a challenge-response authentication protocol instance of RFID systems integrated with the proposed fingerprint was given. The proposed method can not only enhance the authentication intensity, but also monitor the identity of the tag in the communication, and has certain contribution to solve the open question of the secret key leakage detection.
出处
《通信学报》
EI
CSCD
北大核心
2014年第7期86-93,共8页
Journal on Communications
基金
国家自然科学基金资助项目(61371111)
国家交通运输部科技基金资助项目(2012-319-813-270
2010-353-332-110)
江苏政府留学奖学金基金资助项目(2012)~~
关键词
通信对抗
辐射源识别
RFID
身份识别
对数谱
communication countermeasures
emitter identification
RFID
identity recognition
logarithm spectrum
