A snapshot of trusted personal devices applicable to transaction processing

In recent years, a clear trend has emerged where businesses need to provide flexible access to its services so as to increase their usage by a much wider cross-section of users operating over public infrastructures but still within a trusted environment. This trusted environment must be established between all participating users and service provider entities before any transactions are carried out. To meet the challenge of enabling mobile users to work within a trusted environment on any untrusted machine, the notion of a trusted personal device (TPD) has emerged. This paper provides a survey giving a snapshot of the growing body of work ongoing in the area of TPDs and the services they support.