Research Article
Enforcing relationships privacy through collaborative access control in web-based Social Networks
@INPROCEEDINGS{10.4108/ICST.COLLABORATECOM2009.8339 , author={Barbara Carminati and Elena Ferrari}, title={Enforcing relationships privacy through collaborative access control in web-based Social Networks}, proceedings={5th International ICST Conference on Collaborative Computing: Networking, Applications, Worksharing}, proceedings_a={COLLABORATECOM}, year={2009}, month={12}, keywords={authorisation cryptography data privacy groupware social networking ElGamal cryptosystem Web-based social network collaborative access control relationship privacy relationship-based access control}, doi={10.4108/ICST.COLLABORATECOM2009.8339 } }- Barbara Carminati
Elena Ferrari
Year: 2009
Enforcing relationships privacy through collaborative access control in web-based Social Networks
COLLABORATECOM
ICST
DOI: 10.4108/ICST.COLLABORATECOM2009.8339
Abstract
Web-based social networks (WBSNs) are today one of the hugest data source available on the Web and therefore data protection has become an urgent need. This has resulted in the proposals of some access control models for social networks. Quite all the models proposed so far enforce a relationship-based access control, where the granting of a resource depends on the relationships established in the network. An important issue is therefore to devise access control mechanisms able to enforce relationship-based access control by, at the same time, protecting relationships privacy. In this paper, we propose a solution to this problem, which enforces access control through a collaboration of selected nodes in the network. We exploit the ElGamal cryptosystem to preserve relationship privacy when relationship information is used for access control purposes.
