A Dialogue on PDA

Pda Pda Pda

Personal Security Environment on Palm PDA

Digital signature schemes are based on the assumption that the signing key is kept in secret. Ensuring that this assumption holds is one of the most crucial problems for all current digital signature applications. This paper describes the solution developed and prototyped by the authors – using a mobile computing device with a smart card reader for creating digital signatures. We give an overvi...

Implementing a Multi-hat PDA

We describe our work in progress aimed at implementing a multi-hat PDA. Our current prototype is based on SELinux and KDE and accepts a proximity token, in the form of a Bluetooth cellphone, as an alternative authentication method. We analyse in detail the suitability of several alternatives for the graphical environment and underlying OS and we discuss a variety of interesting implementation i...

Implementation of an Augmented Reality System on a PDA

We present a client/server implementation for running demanding mobile AR applications on a PDA device. The system incorporates various data compression methods to make it run as fast as possible on a wide range of communication networks, from GSM to WLAN.

Draw a line on your PDA to authenticate

The trend toward a highly mobile workforce and the ubiquity of graphical interfaces (such as the stylus and touch-screen) has enabled the emergence of graphical authentications in Personal Digital Assistants (PDAs) [1]. However, most of the current graphical password schemes are vulnerable to shoulder-surfing [2,3], a known risk where an attacker can capture a password by direct observation or ...