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Issue title: Selected papers from the Third and Fourth Secure Data Management (SDM) workshops
Article type: Research Article
Authors: Byun, Ji-Wona | Li, Tianchenga | Bertino, Elisaa | Li, Ninghuia | Sohn, Yonglakb
Affiliations: [a] Department of Computer Science, Purdue University, West Lafayette, IN 47907, USA. E-mail: byunj@cs.purdue.edu, li83@cs.purdue.edu, bertino@cs.purdue.edu, ninghui@cs.purdue.edu | [b] Department of Computer Engineering, Seokyeong University, Seoul, Korea. E-mail: syl@skuniv.ac.kr
Abstract: Although the k-anonymity and ℓ-diversity models have led to a number of valuable privacy-protecting techniques and algorithms, the existing solutions are currently limited to static data release. That is, it is assumed that a complete dataset is available at the time of data release. This assumption implies a significant shortcoming, as in many applications data collection is rather a continual process. Moreover, the assumption entails “one-time” data dissemination; thus, it does not adequately address today's strong demand for immediate and up-to-date information. In this paper, we consider incremental data dissemination, where a dataset is continuously incremented with new data. The key issue here is that the same data may be anonymized and published multiple times, each of the time in a different form. Thus, static anonymization (i.e., anonymization which does not consider previously released data) may enable various types of inference. In this paper, we identify such inference issues and discuss some prevention methods.
Keywords: Privacy preservation, data anonymization, data publishing, data security
DOI: 10.3233/JCS-2009-0316
Journal: Journal of Computer Security, vol. 17, no. 1, pp. 43-68, 2009
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