期刊
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
卷 31, 期 1, 页码 105-119出版社
IEEE COMPUTER SOC
DOI: 10.1109/TKDE.2018.2822727
关键词
Data markets; data truthfulness; privacy preservation
类别
资金
- State Key Development Program for Basic Research of China (973 project) [2014CB340303]
- China NSF [61672348, 61672353, 61422208, 61472252]
- Shanghai Science and Technology fund [15220721300, 17510740200]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- CCF Tencent Open Research Fund [RAGR20170114]
As a significant business paradigm, many online information platforms have emerged to satisfy society's needs for person-specific data, where a service provider collects raw data from data contributors, and then offers value-added data services to data consumers. However, in the data trading layer, the data consumers face a pressing problem, i.e., how to verify whether the service provider has truthfully collected and processed data? Furthermore, the data contributors are usually unwilling to reveal their sensitive personal data and real identities to the data consumers. In this paper, we propose TPDM, which efficiently integrates Truthfulness and Privacy preservation in Data Markets. TPDM is structured internally in an Encrypt-then-Sign fashion, using partially homomorphic encryption and identity-based signature. It simultaneously facilitates batch verification, data processing, and outcome verification, while maintaining identity preservation and data confidentiality. We also instantiate TPDM with a profile matching service and a data distribution service, and extensively evaluate their performances on Yahoo! Music ratings dataset and 2009 RECS dataset, respectively. Our analysis and evaluation results reveal that TPDM achieves several desirable properties, while incurring low computation and communication overheads when supporting large-scale data markets.
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