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Online social networks (OSNs) are attractive applications which enable a group of users to share data and stay connected. Facebook, Myspace, and Twitter are among the most popular applications of OSNs where personal information is shared among group contacts. Due to the private nature of the shared information, data privacy is an indispensable security requirement in OSN applications. In this paper, we propose a privacy-preserving scheme for data sharing in OSNs, with efficient revocation fordoi:10.1109/infcom.2010.5462080 dblp:conf/infocom/SunZF10 fatcat:3rhdgj7nijcspf3d5ta7evm66q