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The Untrusted Computer Problem and Camera-Based Authentication
| Book Series | Lecture Notes in Computer Science |
| Publisher | Springer Berlin / Heidelberg |
| ISSN | 0302-9743 (Print) 1611-3349 (Online) |
| Volume | Volume 2414/2002 |
| Book | Pervasive Computing |
| DOI | 10.1007/3-540-45866-2 |
| Copyright | 2002 |
| ISBN | 978-3-540-44060-4 |
| DOI | 10.1007/3-540-45866-2_10 |
| Pages | 114-124 |
| Subject Collection | Computer Science |
| SpringerLink Date | Tuesday, January 01, 2002 |
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The Untrusted Computer Problem and Camera-Based Authentication
Dwaine Clarke6  , Blaise Gassend6 , Thomas Kotwal6 , Matt Burnside6 , Marten van Dijk7 , Srinivas Devadas6 and Ronald Rivest6
| (6) |
Massachusetts Institute of Technology, USA |
| (7) |
Philips Research, USA |
Abstract
The use of computers in public places is increasingly common in everyday life. In using one of these computers, a user is
trusting it to correctly carry out her orders. For many transactions, particularly banking operations, blind trust in a public
terminal will not satisfy most users. In this paper the aim is therefore to provide the user with authenticated communication
between herself and a remote trusted computer, via the untrusted computer.
After defining the authentication problem that is to be solved, this paper reduces it to a simpler problem. Solutions to the
simpler problem are explored in which the user carries a trusted device with her. Finally, a description is given of two camera-based
devices that are being developed.
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