一種具有閱讀器匿名功能的射頻識別認(rèn)證協(xié)議
doi: 10.11999/JEIT140902
基金項(xiàng)目:
國家自然科學(xué)基金(61370203)和四川省教育廳科研項(xiàng)目基金(12ZB348)資助課題
An RFID Authentication Protocol Anonymous against Readers
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摘要: 在射頻識別(RFID)的應(yīng)用中，安全問題特別是用戶隱私問題正日益凸顯。因此，(用戶)標(biāo)簽信息的隱私保護(hù)的需求越來越迫切。在RFID系統(tǒng)中，標(biāo)簽的隱私保護(hù)不僅是對外部攻擊者，也應(yīng)該包括閱讀器。而現(xiàn)有許多文獻(xiàn)提出的認(rèn)證協(xié)議的安全僅針對外部攻擊者，甚至在外部攻擊者的不同攻擊方法下也并不能完全保證安全。該文提出兩個標(biāo)簽對閱讀器匿名的認(rèn)證協(xié)議：列表式RFID認(rèn)證協(xié)議和密鑰更新式RFID認(rèn)證協(xié)議。這兩個協(xié)議保證了閱讀器對標(biāo)簽認(rèn)證時，標(biāo)簽的信息不僅對外部攻擊者是安全的而且對閱讀器也保持匿名和不可追蹤。相較于Armknecht等人提出的對閱讀器匿名和不可追蹤的認(rèn)證協(xié)議，該文所提的協(xié)議不再需要增加第三方幫助來完成認(rèn)證。并且密鑰更新式RFID匿名認(rèn)證協(xié)議還保證了撤銷后的標(biāo)簽對閱讀器也是匿名性和不可追蹤的。Abstract: In application of RFID (Radio Frequency IDentification), security threats are on the rise. The demand for the privacy protection of tag is becoming more and more urgent. In RFID system, the privacy protection is against not only the outside attacker, but also the readers. In many exists the representative researches, the tags are only anonymous and untraceable for the outside attackers. In this paper, the list of protocol and the the key updated of protocol are proposed, which allow RFID tags to authenticate to readers without revealing the tag identity or any other information that allows tags to be traced. Compared with the scheme proposed by Armknecht et al., two schemes achieves anonymousness and untraceability authentication of RFID tags without the help of anonymizer. Furthermore, the key updated of scheme make sure that the revocatory tags will not be still tracked by updating key .
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