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AUTOMATED AUDITING AND LOGGING MECHANISM FOR SECURE DATA STORAGE IN CLOUD USING PROXY RE-ENCRYPTION

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Author(s): J.Shyamala, D.Femila, B.Vinisha Cathrine Antonus

Journal: International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
ISSN 2278-1323

Volume: 2;
Issue: 3;
Start page: 1109;
Date: 2013;
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Keywords: Decentralized Erasure Code | Proxy Re-encryption | Accountability and Data Sharing.

ABSTRACT
High-speed networks and ubiquitous Internet access become available to users for access anywhere at anytime. Cloud computing is a concept that treats the resources on the Internet as a unified entity, a cloud. Cloud storage is a model of networked online storage where data is stored in virtualized pools of storage which are generally hosted by third parties. Storing data in a third party’s cloud system causes serious concern on data confidentiality. In order to provide strong confidentiality for messages in storage servers, a user can encrypt messages by a cryptographic method before applying an erasure code method to encode and store messages. We propose an object-centered approach that enables enclosing our logging mechanism together with users’ data and policies. To strengthen user’s control, we also provide distributed auditing mechanisms. Users will send their data along with any policies such as access control policies and logging policies that they want to enforce, enclosed in JAR files, to cloud service providers. Any access to the data will trigger an automated and authenticated logging mechanism local to the JARs. Our system is highly distributed where storage servers independently encode and forward messages and key servers independently perform partial decryption.We analyze suitable parameter for more flexible adjustment between the number of storage servers and robustness. We provide extensive experimental studies that demonstrate the efficiency and effectiveness of the proposed approaches.
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