Atomicity in electronic commerce
PODC '96 Proceedings of the fifteenth annual ACM symposium on Principles of distributed computing
A framework for micropayment evaluation
Netnomics
PayWord and MicroMint: Two Simple Micropayment Schemes
Proceedings of the International Workshop on Security Protocols
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
Private queries in location based services: anonymizers are not necessary
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Privacy and location anonymization in location-based services
SIGSPATIAL Special
An efficient anonymous scheme for secure micropayments
ICWE'03 Proceedings of the 2003 international conference on Web engineering
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The brand new mobile devices are capable to access data networks and they are also able to execute complex applications. Furthermore, these devices implement location systems like GPS. The combination of both capabilities can be useful to build new ubiquitous applications based on user location. These applications provide to service customers valuable information related to their location. We present a new scheme to access Location-Based Services (LBS) which joins both the anonymity of its users and the privacy of their data with the capacity of providers to charge them. The protocol we describe here is based on micropayment schemes and it also adds for the first time a fair exchange between the service provider and the user, which is a micropayment for a location-based service.