Trust in Crowds: probabilistic behaviour in anonymity protocols


Sassone, Vladimiro, El-Salamouny, Ehab and Hamadou, Sardaouna (2010) Trust in Crowds: probabilistic behaviour in anonymity protocols. In, Symposium on Trustworthy Global Computing, TGC 2010, Lecture Notes in Computer Science 6084 LNCS, Springer, 88-102.

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Description/Abstract

The existing analysis of the Crowds anonymity protocol assumes that a participating member is either ‘honest’ or ‘corrupted’. This paper generalises this analysis so that each member is assumed to maliciously disclose the identity of other nodes with a probability determined by her vulnerability to corruption. Within this model, the trust in a principal is defined to be the probability that she behaves honestly. We investigate the effect of such a probabilistic behaviour on the anonymity of the principals participating in the protocol, and formulate the necessary conditions to achieve ‘probable innocence’. Using these conditions, we propose a generalised Crowds-Trust protocol which uses trust information to achieves ‘probable innocence’ for principals exhibiting probabilistic behaviour.

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Web & Internet Science
Item ID: 268594
Date Deposited: 12 Mar 2010 11:28
Last Modified: 27 May 2013 01:20
Contributors: Sassone, Vladimiro (Author)
El-Salamouny, Ehab (Author)
Hamadou, Sardaouna (Author)
Date: April 2010
Status: Published
Publisher: LNCS, Springer
Further Information:Google Scholar
ISI Citation Count:0
URI: http://eprints.soton.ac.uk/id/eprint/268594

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