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【学术报告】ZebraLancer:Private and Anonymous Decentralized Crowdsourcing Atop Open Blockchain

[发表时间]:2018-11-12 [来源]: [浏览次数]:

讲座时间: 2018年11月14日(周三)下午15:00 - 16:30

讲座地点: 东区主教307

主讲人:QiangTang

讲座摘要:

We design and implementthe first private and anonymous decentralized crowdsourcing system ZebraLancer.It realizes the fair exchange (i.e. security against malicious workers anddishonest requesters) without any third-party arbiter. More importantly, itovercomes two fundamental challenges of decentralizing crowdsourcing, i.e. dataleakage and identity breach. We also implemented our protocol for a commonimage annotation task and deploy it in a test net of Ethereum. The experimentresults show the applicability of our protocol and highlight subtleties oftailoring the protocol to be compatible with the existing real-world openblockchain.

主讲人简介:

Dr. Qiang Tang is currently an assistantprofessorat New Jersey Institute of Technology (NJIT),and also a co-director of JD-NJIT-ISCAS joint blockchain lab. Before joiningNJIT, he was a postdoctoral research associate at the Initiative ofCryptocurrency and Contracts (IC3) at Cornell University, under the supervisionof Prof. Elaine Shi. He obtained his Ph.D from the University of Connecticut,under the supervision of Prof. Aggelos Kiayias and Prof. Alexander Russell.

Dr. Tang research interests spans varioustopics of cryptography and blockchain technology. His research results appearedmostly in top crypto/security/distributed system venues including CRYPTO,EUROCRYPT, ASIACRYPT, CCS and more. His research was supported by NSF,DoE, JD.com, and several blockchain foundations including Protocol Labs whichinvented IPFS.

Dr. Tang was the founding co-chair of IEEE SMCTechnical Committee on blockchain and has been invited to serve as programcommittee on various top cryptography and blockchain venues, and as expertreviewer for various prestigious grants for funding agencies from Canada, HongKong and China. Dr. Tang has been invited to testify as academia representativeat NJ State Congress for blockchain policies, and also a private forum forFederal policy regarding Encryption, Surveillance and Transparency.

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