TY - GEN
T1 - An anonymous and accountable authentication scheme for Wi-Fi hotspot access with the Bitcoin blockchain
AU - Niu, Yukun
AU - Wei, Lingbo
AU - Zhang, Chi
AU - Liu, Jianqing
AU - Fang, Yuguang
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2018/4/2
Y1 - 2018/4/2
N2 - Anonymous authentication can protect users' privacy and security when they access public Wi-Fi hotspots. However, most of the existing privacy-enhanced authentication schemes either do not consider users' accountability or they are inherently dependent on trusted third parties, and therefore are undeployable in practical settings. In this paper, we design and implement an access authentication scheme to simultaneously and efficiently provide anonymity and accountability without relying on any trusted third party. Our scheme is inspired by the recent progress of Bitcoin techniques such as Colored Coins and CoinShuffle protocol. We utilize the unmodified Bitcoin blockchain as the powerful platform to manage and determine ownership of access credentials in a peer-to-peer fashion and introduce a completely decentralized Bitcoin mixing protocol that allows users to anonymously exchange their access credentials offline. The verification path of access credentials is designed to support blacklisting and punishing misbehaving anonymous users. Our proposed scheme is compatible with the current Bitcoin system, and its effectiveness and feasibility in Wi-Fi hotspot access scenario are also demonstrated by security analysis and performance evaluation.
AB - Anonymous authentication can protect users' privacy and security when they access public Wi-Fi hotspots. However, most of the existing privacy-enhanced authentication schemes either do not consider users' accountability or they are inherently dependent on trusted third parties, and therefore are undeployable in practical settings. In this paper, we design and implement an access authentication scheme to simultaneously and efficiently provide anonymity and accountability without relying on any trusted third party. Our scheme is inspired by the recent progress of Bitcoin techniques such as Colored Coins and CoinShuffle protocol. We utilize the unmodified Bitcoin blockchain as the powerful platform to manage and determine ownership of access credentials in a peer-to-peer fashion and introduce a completely decentralized Bitcoin mixing protocol that allows users to anonymously exchange their access credentials offline. The verification path of access credentials is designed to support blacklisting and punishing misbehaving anonymous users. Our proposed scheme is compatible with the current Bitcoin system, and its effectiveness and feasibility in Wi-Fi hotspot access scenario are also demonstrated by security analysis and performance evaluation.
KW - accountability
KW - Anonymous authentication
KW - Bitcoin blockchain
KW - Wi-Fi hotspot access
UR - http://www.scopus.com/inward/record.url?scp=85049671086&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85049671086&origin=recordpage
U2 - 10.1109/ICCChina.2017.8330337
DO - 10.1109/ICCChina.2017.8330337
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781538645024
VL - 2018-January
T3 - 2017 IEEE/CIC International Conference on Communications in China, ICCC 2017
SP - 4
EP - 6
BT - 2017 IEEE/CIC International Conference on Communications in China, ICCC 2017
PB - IEEE
T2 - 2017 IEEE/CIC International Conference on Communications in China, ICCC 2017
Y2 - 22 October 2017 through 24 October 2017
ER -
