Title :
Toward unlinkable ID management for multi-service environments
Author :
Nohara, Yasunobu ; Inoue, Sozo ; Yasuura, Hiroto
Author_Institution :
Kyushu Univ., Fukuoka, Japan
Abstract :
As pervasive computing environments become popular, ID devices, such as smart cards and RFID tags, introduce multi-service environments, in which a user can receive multiple services by one ID device. However, there exists a problem that service providers can trace a user´s behavior by linking the user´s access history, if only one ID is assigned to the user. In this paper, we propose an unlinkable ID management scheme for multi-service environments. Our scheme provides unlinkability of users´ accesses against third-party service providers, by preparing different user IDs for each service, and by using cryptographic protocol to exchange the ID between a user and a service provider, while linkability is assured between the user and the involved provider.
Keywords :
cryptography; identification technology; ubiquitous computing; ID devices; cryptographic protocol; multi-service environments; pervasive computing; third-party service providers; unlinkable ID management; Conferences; Cryptographic protocols; Environmental management; History; Identity management systems; Intrusion detection; Joining processes; Pervasive computing; RFID tags; Smart cards;
Conference_Titel :
Pervasive Computing and Communications Workshops, 2005. PerCom 2005 Workshops. Third IEEE International Conference on
Print_ISBN :
0-7695-2300-5
DOI :
10.1109/PERCOMW.2005.84