A Signature-based Data Authentication Method with Bitmap-based Transformed Datain Database Outsourcing

• DOI: 10.1016/j.procs.2015.05.073
• Publication Date: 2015-06-03T05:50:10Z
• Authors: Miyoung Jang; Min Yoon; Youngho Song; Jae-Woo Chang
• Keywords: Data integrity; Bitmap

Due to the advancement in cloud computing technology, research on database outsourcing has been actively done. In outsourcing, because a service provider might be untrusted or compromised, two issues of data security emerge: confidentiality and integrity. Many transformation schemes were widely studied for preserving confidentiality, but they are vulnerable leakage problem do not consider distribution when encrypting original data. Meanwhile, several query authentication proposed verity integrity, suffer from transmission overhead verification this paper, we propose privacy-aware scheme which guarantees result integrity sensitive To solve problem, bitmap-based with anchor selection based distribution. We also devise an algebraic coding-based hash index that transforms bitmap retrieves information efficiently. reduce data, stores encrypted signature each anchor, is concatenated digest cluster Through performance evaluation, show our outperforms existing method up 15 times, terms processing time overhead.