We propose an efficient anonymous authentication scheme that provides untraceability and unlinkability of mobile devices, while accessing Location-Based Services. Following other recent approaches for mobile anonymity, in our scheme the network operator acts as an anonymous credential issuer for its users. However, our scheme supports credential non-transferability, without requiring embedded hardware security features. In addition it supports fairness characteristics. On one hand, it reduces the trust assumptions for the issuer by supporting non-frameability: the issuer, even in collaboration with the LBS provider, cannot simulate a transaction that opens back to an honest user. On the other hand, it supports anonymity revocation for illegally used credentials. Our scheme uses standard primitives such as zero-knowledge proofs, MACs and challenge/responses. We provide formal security proofs based on the intractability of the Divisible Diffie-Hellman assumption. © 2013 Springer-Verlag.
CITATION STYLE
Kotzanikolaou, P., Magkos, E., Petrakos, N., Douligeris, C., & Chrissikopoulos, V. (2013). Fair anonymous authentication for location based services. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7731 LNCS, pp. 1–14). https://doi.org/10.1007/978-3-642-35890-6_1
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