http://veryidx.cs.purdue.edu/ 2009-11-22T21:50:43-05:00 http://veryidx.cs.purdue.edu/ http://veryidx.cs.purdue.edu/lib/images/favicon.ico text/html 2008-03-19T17:30:58-05:00 http://veryidx.cs.purdue.edu/faculty?rev=1205962258 text/html 2008-03-19T17:31:08-05:00 http://veryidx.cs.purdue.edu/graduate_students?rev=1205962268 text/html 2008-04-10T14:05:56-05:00 http://veryidx.cs.purdue.edu/proj_healthcare?rev=1207850756 Under construction. text/html 2008-04-10T14:11:07-05:00 http://veryidx.cs.purdue.edu/proj_nfc?rev=1207851067 A main challenge in mobile commerce is to make it possible for users to manage their transaction histories from both online e-commerce transactions and in-person transactions. Such histories are typically useful to build credit or to establish trust based on past transactions. In this project, we propose an approach to manage electronic receipts on cellular devices by assuring their secure and privacy-preserving usage. We provide a comprehensive notion of transactions history including both on-l… text/html 2008-04-10T14:00:06-05:00 http://veryidx.cs.purdue.edu/proj_veryidx?rev=1207850406 In a history-based trust-management system, users and service providers use information about past transactions to make trust-based decisions concerning current transactions. One category of such systems is represented by the reputation systems. However, despite the growing body of experience in building reputation systems, there are several limitations on how they are typically implemented. They often rely on scores that are evaluated by service providers and are often not reliable or well unde… text/html 2008-04-14T02:28:31-05:00 http://veryidx.cs.purdue.edu/sidebar?rev=1208154511 Research Group * Homepage * Faculty * Participants * Internal text/html 2008-04-10T14:39:19-05:00 http://veryidx.cs.purdue.edu/start?rev=1207852759 Digital identity can be defined as the digital representation of the information known about a specific individual or organization. As such, it encompasses not only login names (often referred to as nyms), but many additional information, referred to as identity attributes or identifiers. The management of identity attributes raises a number of challenges, due to conflicting requirements. On the one hand, identity attributes need to be shared to speed up and facilitate authentication of users an… text/html 2008-03-19T17:31:23-05:00 http://veryidx.cs.purdue.edu/undergraduate_students?rev=1205962283