for security protocol analysis that supports the specifica-tion of security assumptions and goals as LTL formulae. Further analysis that we conducted manually revealed that the protocol allows for imple-mentations that fail to meet the expected privacy goal. We describe the implications of our findings

privacy-preserving index[2]), our solution highlights with a series of distinct features: (a) it incorporates access control policies in the privacy-preserving index, which improves both search efficiency and attack resilience; (b) it employs a fast index construction protocol via a novel use

-rious. Because of such serious privacy implications the need for privacy-preserving biometric authentication protocols is of utmost importance. Recently, Yasuda et al. [1, 2] proposed two efficient privacy-preserving biometric authentication using packed homomorphic encryption based on ideal lattices and on ring

Abstract—In this paper we consider the problem of privacy and security in vehicular (V2V) communication, in particular securing routine safety messages. Traditional public key mechanisms are not appropriate for such applications because of the large number of safety messages that have

results due to spatial cloak-ing [2,5,6], and (4) insecurity against malicious behaviors [2,5,6]. In this paper, we propose an efficient protocol for privacy-preserving LBS that is secure against malicious attacks as well as global attacks. Our protocol scales well with the number of clients and is load

results illustrate that our schemes are efficient for communication and effective for privacy and security protection. Index Terms—Privacy preserving, range query, sensor networks, verifiable reply. Ç 1

, such as a traffi cmonitoring server, on the road. Because of its hybrid architecture, Vanet can provide safety and entertainment related applications on the road.1 Vehicular traffi c monitoring (VTM) is an important application of Vanet,2 where vehicles moving on the road can use V2V and V2R communications

Abstract—The need for controlled (privacy-preserving) sharing of sensitive information occurs in many different and realistic everyday scenarios, ranging from national security to social networking. A typical setting involves two parties: one seeks information from the other without revealing

Abstract—In this paper, for achieving vehicle user’s privacy preservation while improving key update efficiency of location based services (LBSs) in vehicular ad hoc networks (VANETs), we propose a dynamic privacy-preserving key management scheme, called DIKE. Specifically, in the proposed DIKE

the secure efficient system for protection of data, restricting the access to data even by the administrator thus maintaining the secrecy of individual patients. In RSA algorithm identical database must be used in all networks gateways, the creation of the database controlled by a special protocol programmed