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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