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User authentication is the critical first step to detect identitybased attacks and prevent subsequent malicious attacks. However, the increasingly dynamic mobile environments make it harder to always apply the cryptographic-based methods for user authentication due to their infrastructural and key management overhead. Exploiting non-cryptographic based techniques grounded on physical layer properties to perform user authentication appears promising. In this work, we explore to use channel statedoi:10.1145/2590296.2590321 dblp:conf/ccs/LiuWLYC14 fatcat:irilvrrbzre3hl6gmwkjkh3suq