Cloud

Meta-Data Driven Data Chunk Based Secure Data Storage for SaaS

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Executive Summary

Software-as-a-Service, i.e. SaaS, is an emerging model that allows tenants to outsource computation and storage of their sensitive data to external service providers. Although SaaS model provides many benefits, it introduces new security concerns in data storage. Untrustworthy service providers might violate tenants' data privacy or maliciously delete, modify and falsify tenants' data due to some reason, which hinders wider adoption of SaaS model. With regard to data storage security issue of SaaS model, this paper gives the concept of data combination privacy and data integrity for SaaS, and then presents a novel data storage protection mechanism which combines the data privacy protection issue and secure data possession issues based on a meta-data driven data chunk based data storage model.

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