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IRRES: Intrusion-Resilient Remote Email Storage

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Executive Summary

Both individuals and corporations increasingly rely on email to exchange important and, often sensitive, information. With the advent of ubiquitous computing and miniaturization of end-devices, many users leave email on remote servers, thus facilitating anywhere/anytime access from any networked device. Since private and sensitive information is often contained in email, it is very important to prevent its unauthorized disclosure. In this paper, the authors consider the problem of repeated intrusions of third-party email servers. They present IRRES: Intrusion-Resilient Remote Email Storage system that prevents email leakage in the presence of a powerful mobile adversary. IRRES eliminates sender compliance requirements by shifting encryption from email sender to email server.

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