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  1. Proceedings of the 2016 ACM on Cloud Computing Security Workshop (CCSW '16)
  2. Oblivious RAM as a Substrate for Cloud Storage -- The Leakage Challenge Ahead
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Data Analytics: Understanding Human Behavior based on Mobile Network Data
Executing Boolean Queries on an Encrypted Bitmap Index
Stratum Filtering: Cloud-based Detection of Attack Sources
On Information Leakage in Deduplicated Storage Systems
Co-location Resistant Strategy with Full Resources Optimization
Poly-Logarithmic Range Queries on Encrypted Data with Small Leakage
Oblivious RAM as a Substrate for Cloud Storage -- The Leakage Challenge Ahead
Message-Locked Proofs of Retrievability with Secure Deduplication
Encrypting Analytical Web Applications
Towards an Efficient Policy Evaluation Process in Multi-Tenancy Cloud Environments
Generic Efficient Dynamic Proofs of Retrievability
Assured Deletion in the Cloud: Requirements, Challenges and Future Directions

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Oblivious RAM as a Substrate for Cloud Storage -- The Leakage Challenge Ahead

Content Provider ACM Digital Library
Author Sánchez-Artigas, Marc
Abstract Oblivious RAM (ORAM) is a well-established technology to hide data access patterns from an untrusted storage system. Although research in ORAM has been spurred in the last few years with the irruption of cloud computing, it is still unclear whether ORAM is ready for the cloud. As we demonstrate in this short paper, there are still some important hurdles to be overcome. One of those is the standard block-based ORAM interface, which can become a timing side-channel when used as a substrate to implement higher level abstractions such as filesystems, personal storage services, etc., typically found in the cloud. We analyze this form of leakage and discuss some possible solutions to this problem, concluding that thwarting it in an efficient manner calls for further research.
Starting Page 49
Ending Page 53
Page Count 5
File Format PDF
ISBN 9781450345729
DOI 10.1145/2996429.2996430
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2016-10-28
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Leakage Information flow Access pattern Oram
Content Type Text
Resource Type Article
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