Cloud

Mistify: Augmenting Cloud Storage With Delay-Tolerant Cooperative Backup

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Executive Summary

A variety of personal backup services now allow users to synchronise their files across multiple devices such as laptops and Smartphones. These applications typically operate by synchronising each device with a centralised storage service across the Internet. However, access to the Internet may occasionally not be available, leaving any unsynchronised content in a vulnerable state. To address this, applications could alternatively make use of storage capacity provided by other devices within close proximity, using ad-hoc or local network connectivity. Such devices can provide a secondary storage tier in case of Internet connectivity issues, and could also be used to forward files to central storage at a later time.

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