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AWARE Architecture
Maintaining social awareness of the working context of fellow co-workers is crucial
to successful cooperation. For mobile, non co-located workers, however, this social
awareness is hard to maintain.
The AWARE architecture is a generic platform for supporting context-mediated social awareness.
The concept of Context-Mediated Social Awareness denotes
how context-aware computing can be used to facilitate social awareness.
Based on the AWARE architecture we have developed the
AwarePhone, which is designed to support context-mediated social
awareness among hospital clinicians.
Proximity-Based User Authentication
The concept of Proximity-Based User Authentication denotes that
users can simply walk up to a computer and their mere presence will
log them in. We see proximity-based user authentication
as a usability-wise ideal for UbiComp systems. Proximity-based
user authentication is based on a
context-aware user authentication protocol, which (1) uses a JavaCard for
identification and cryptographic calculations, (2) uses a context-awareness system for
verifying the user’s location, and (3) implements a security fall-back strategy.
In the UbiComp 2003 paper (see publications) we analyze the
security of this protocol and discuss the tradeoff between usability
and security. We also present our current implementation of the protocol and
discuss future work.
AwareBed
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