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タイトル: Private Range Query by Perturbation and Matrix Based Encryption
著者: Kawamoto, Junpei
Yoshikawa, Masatoshi  kyouindb  KAKEN_id
著者名の別形: 川本, 淳平
吉川, 正俊
キーワード: Correlation
Encryption
Query processing
Servers
Vectors
cryptography
database management systems
matrix algebra
query processing
発行日: Sep-2011
出版者: IEEE
誌名: 2011 Sixth International Conference on Digital Information Management (ICDIM)
開始ページ: 211
終了ページ: 216
抄録: In this paper, we propose a novel approach for private query; IPP (inner product predicate) method. Private query is a query processing protocol to obtain requesting tuples without exposing any information about what users request to third persons including service providers. Existing works about private query such as PIR, which ensure information theoretic safety, have severe restriction because they do not support range queries nor allow tuples having a same value in queried attributes. Our IPP method, on the other hands, focuses range queries mainly and it allows tuples having a same value in any attributes. IPP method employs a query transform by trusted clients (QT) scheme and proposes transformation algorithms which make the correlation between plain queries and transformed queries and the correlation between plain attribute values and transformed attribute values small enough. Thus, the transformed queries and attribute values have resistance to frequency analysis attacks which implies IPP method prevents attackers, who know the plain distribution of them, from computing the plain queries and attribute values from transformed values. IPP method adds perturbations to queries and attribute values and gives them a matrix based encryption to achieve the above property. We also confirm the computational cost on servers belongs to O(n) with the number of tuples n and is virtually no orrelation between the distributions of transformed queries and queried attribute values and the plain distributions of them by experimental evaluations.
記述: 2011 Sixth International Conference on Digital Information Management (ICDIM) : Melbourne, Australia, September, 2011.09.26-2011.09.28
著作権等: (c) 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6093317
URI: http://hdl.handle.net/2433/147946
DOI(出版社版): 10.1109/ICDIM.2011.6093317
関連リンク: http://www.icdim.org/bpaper.php
出現コレクション:学術雑誌掲載論文等

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