Beidou chip online certification method and device

The invention provides a Beidou chip online certification method and device, and belongs to the technical field of Beidou chip safety. The method comprises the following steps: acquiring an electromagnetic radiation signal produced by the Beidou chip in running, performing feature extraction on the electromagnetic radiation signal to obtain N frequency point features, and N is an integer greater than or equal to 1; determining whether the Beidou chip is successfully identified according to the N frequency point features and a target frequency point feature. By use of the Beidou chip online certification method and device provided by the invention, the safety of the Beidou chip is improved. 本发明提供种北斗芯片在线认证方法及装置，属于北斗芯片安全技术领域。该方法包括：采集所述北斗芯片在运行时产生的电磁辐射信号；所述电磁辐射信号进行特征提取，得到N个频点特征，N为大于等于1的整数；根据所述N个频点特征与目标频点特征确定所述北斗芯片是否认证成功。本发明提供的北斗芯片在线认证方法及装置，提高了北斗芯片的安全性。