FAST '03 Abstract
Data Staging on Untrusted Surrogates
Jason Flinn, Intel Research Pittsburgh and University of Michigan; Shafeeq Sinnamohideen, Niraj Tolia, and M. Satyanaryanan, Intel Research Pittsburgh and Carnegie Mellon University
We show how untrusted computers can be used to facilitate
secure mobile data access. We discuss a novel architecture,
data staging, that improves the performance of
distributed file systems running on small, storage-limited
pervasive computing devices. Data staging opportunis-tically
prefetches files and caches them on nearby surrogate
machines. Surrogates are untrusted and unmanaged:
we use end-to-end encryption and secure hashes
to provide privacy and authenticity of data and have designed
our system so that surrogates are as reliable and
easy to manage as possible. Our results show that data
staging reduces average file operation latency for interactive
applications running on the Compaq iPAQ hand-held
by up to 54%.
- View the full text of this paper in PDF.
Until May 2004, you will need your USENIX membership identification in order to access the full papers. The Proceedings are published as a collective work, © 2003 by the USENIX Association. All Rights Reserved. Rights to individual papers remain with the author or the author's employer. Permission is granted for the noncommercial reproduction of the complete work for educational or research purposes. USENIX acknowledges all trademarks within this paper.
- If you need the latest Adobe Acrobat Reader, you can download it from Adobe's site.