物理层安全专栏序言(中英文)

物理层安全技术特别是无线物理层安全技术,利用通信系统物理层的信息为通信提供安全保护,在网络安全、电子对抗中有着广泛的应用.它利设备指纹对设备身份进行识别,进而实施接入控制;利用信道特征为通信双方建立对称密钥,进而保护传输数据的安全;或者通过加大合法信道与窃听信道的差异,使得敌手的窃听变得更加困难.

Preface of Physical Layer Security Column

The physical layer security technology,especially in the wireless field,exploits the inherent physical-layer information of the communication system to provide security protection for communication.It has been widely used in network security and electronic countermeasures.Based on the physical layer security,the device fingerprints are used to identify the device for access control,the channel characteristics are used to establish a pair of symmetric key for both parties to protect the security of transmitted data,or the noise is used to enlarge the channel condition gap to make the eavesdropping more difficult.