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Title: Distributed Privacy Preserving Data Collection

Citation Type: Journal Article

Publication Year: 2011

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Abstract: We study the distributed privacy preserving data collection problem: an untrusted data collector (e.g., a medical research institute) wishes to collect data (e.g., medical records) from a group of respondents (e.g., patients). Each respondent owns a multi-attributed record which contains both non-sensitive (e.g., quasi-identifiers) and sensitive information (e.g., a particular disease), and submits it to the data collector. Assuming T is the table formed by all the respondent data records, we say that the data collection process is privacy preserving if it allows the data collector to obtain a k-anonymized or l-diversified version of T without revealing the original records to the adversary.We propose a distributed data collection protocol that outputs an anonymized table by generalization of quasi-identifier attributes. The protocol employs cryptographictechniques such as homomorphic encryption, private information retrieval and secure multiparty computation to ensure the privacy goal in the process of data collection. Meanwhile, the protocol is designed to leak limited but noncritical information to achieve practicability and efficiency. Experiments show that the utility of the anonymized table derived by our protocol is in par with theutility achieved by traditional anonymization techniques .

Url: https://link.springer.com/chapter/10.1007/978-3-642-20149-3_9

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Authors: Keng Pung, Hung; Raissi, Chedy; Papadimitriou, Panagiotis; Xue, Mingqiang; Kalnis, Panos

Periodical (Full): Database Systems for Advanced Applications

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Volume: 6587

Pages: 93-107

Data Collections: IPUMS USA

Topics: Methodology and Data Collection, Other

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