Cloud

Enhancing Cloud Storage Security Against Roll-Back Attacks With a New Fair Multi-Party Non-Repudiation Protocol

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Executive Summary

Along with variant advantages, cloud storage also poses new security challenges. Potential users are reluctant to move important and sensitive data to cloud unless security challenges have been well addressed. This paper reports, the authors' on-going efforts to address three data security issues in cloud storage: repudiation, fairness, and roll-back attacks. They proposed a novel fair Multi-Party Non-Repudiation (MPNR) protocol, which provide a fair non-repudiation storage cloud and are capable of preventing roll-back attacks. Cloud storage systems can meet basic requirements of mass storage and low expense.

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