ABSTRACT
Privacy preservation has troubled society for centuries. Lately, this concern has grown due to the development and implementation of information and communication technologies capable of collecting, analyzing, and disseminating personal information automatically. These developments have drawn the attention of the research community, which has been challenged by a myriad of mechanisms capable of violating the right to individual privacy when performing online transactions. Although current data-harvesting systems are already incredibly powerful, their data collection capacities are being exceptionally extended, thanks to the integration of sensing technologies in computing systems, which provide them with the ability to gather information from the physical world directly. Therefore, the privacy problem can reach a whole new dimension with the deployment of ubiquitous technologies like sensor networks as they can collect personal information in places and situations hitherto unsuspected.
