One User, Many Hats; and, Sometimes, No Hat: Towards a Secure Yet Usable PDA

@inproceedings{Stajano2004OneUM,
  title={One User, Many Hats; and, Sometimes, No Hat: Towards a Secure Yet Usable PDA},
  author={Frank Stajano},
  booktitle={Security Protocols Workshop},
  year={2004}
}
How can we design a PDA that is at the same time secure and usable? In current implementations the two properties are mutually exclusive. Because normal users find password entry inconvenient, the balance usually shifts away from security, leaving the PDA vulnerable if lost or stolen. We begin by envisaging what an ideal PDA authentication mechanism might look like and by carefully examining alternatives to passwords such as tokens and biometrics. We then expose another aspect of the security… CONTINUE READING
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