Cross-VM Side Channels and their Use to Extract Private Keys

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Provided by: Association for Computing Machinery
Topic: Cloud
Format: PDF
In this paper the authors details the construction of an access-driven side-channel attack by which a malicious Virtual Machine (VM) extracts fine-grained information from a victim VM running on the same physical computer. This attack is the first such attack demonstrated on a symmetric multiprocessing system virtualized using a modern VMM (Xen). Such systems are very common today, ranging from desktops that use virtualization to sandbox application or OS compromises, to clouds that co-locate the workloads of mutually distrustful customers.
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