October, 2012 Archive

FairTorrent: A Deficit-Based Distributed Algorithm to Ensure Fairness in Peer-to-Peer Systems

Alex Sherman, Jason Nieh, Clifford Stein IEEE/ACM Transactions on Networking, Volume 20, Issue 5, October, 2012, pp. 1361–1374 Abstract Peer-to-peer file-sharing applications suffer from a fundamental problem of unfairness. Free-riders cause slower download times for others by contributing little or no upload bandwidth while consuming much download bandwidth. Previous attempts to address this fair bandwidth allocation problem suffer from slow …

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CleanOS: Limiting Mobile Data Exposure with Idle Eviction

Yang Tang, Phillip Ames, Sravan Bhamidipati, Ashish Bijlani, Roxana Geambasu, Nikhil Sarda Proceedings of the 10th USENIX Symposium on Operating Systems Design and Implementation (OSDI’12), Hollywood, CA, October 2012 Abstract Mobile-device theft and loss have reached gigantic proportions. Despite these threats, today’s mobile devices are saturated with sensitive information due to operating systems that never securely erase data and applications …

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Columbia University Department of Computer Science