Sciweavers

PERCOM
2004
ACM

Untraceable Secret Credentials: Trust Establishment with Privacy

14 years 3 months ago
Untraceable Secret Credentials: Trust Establishment with Privacy
There is generally no a priori trust relationship among entities interacting in pervasive computing environments which makes it necessary to establish trust from scratch. This task becomes extremely challenging when it is simultaneously necessary to protect the privacy of the actors involved. This paper shows how trust can be based on previous interactions yet remain unlinkable to any previous event or any specific entity. A solution based on group blind signatures is proposed that relies on credentials both secret, meaning that they contain an encrypted description of previous interactions, and untraceable, meaning that they cannot be recognized when presented to their issuer.
Laurent Bussard, Yves Roudier, Refik Molva
Added 24 Dec 2009
Updated 24 Dec 2009
Type Conference
Year 2004
Where PERCOM
Authors Laurent Bussard, Yves Roudier, Refik Molva
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