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  5. An Implementation of Navigation Message Authentication with Reserved Bits for Civil BDS Anti-spoofin

An Implementation of Navigation Message Authentication with Reserved Bits for Civil BDS Anti-spoofin

来源 :第八届中国卫星导航学术年会 | 被引量 : 0次 | 上传用户：lzbboyf
【摘 要】
：
Since navigation message authentication (NMA) requires a modification in space segment and the signal broadcasted by satellites,negligent implementations of NMA may cause a failure in legacy GNSS rece
【作 者】
：
Muzi Yuan Zhicheng Lv Huaming Chen Jingyuan Li Gang Ou 
【机 构】
：
Satellite Navigation R&D Center,School of Electronic Science and Engineering National University of
【出 处】
：
第八届中国卫星导航学术年会
【发表日期】
：
2017年4期
【关键词】
：
Anti-spoofing Digital signature Reserved bits Navigation message authentication 
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　　Since navigation message authentication (NMA) requires a modification in space segment and the signal broadcasted by satellites,negligent implementations of NMA may cause a failure in legacy GNSS receiver to process civil GNSS signal.This paper proposes an implementation of NMA applying reserved bits as signature area.Digital signature and key chain algorithms are employed to improve security and efficiency of the implement.In additional,performance of this implementation is investigated.
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