منابع مشابه
Remote Oblivious Storage: Making Oblivious RAM Practical
Remote storage of data has become an increasingly attractive and advantageous option, especially due to cloud systems. While encryption protects the data, it does not hide the access pattern to the data. A natural solution is to access remote storage using an Oblivious RAM (ORAM) which provably hides all access patterns. While ORAM is asymptotically efficient, the best existing scheme (Pinkas a...
متن کاملVerifiable Oblivious Storage
We formalize the notion of Verifiable Oblivious Storage (VOS), where a client outsourcesthe storage of data to a server while ensuring data confidentiality, access pattern privacy, andintegrity and freshness of data accesses. VOS generalizes the notion of Oblivious RAM (ORAM)in that it allows the server to perform computation, and also explicitly considers data integrityand ...
متن کاملFast Oblivious Storage
We introduce three practicality-critical components for Oblivious RAM (ORAM): (i) parallelism, (ii) deamortization, and (iii) fork-consistency defense against malicious adversaries. In (i), instead of waiting for the completion of ongoing client-server transactions, client threads can now engage a server in parallel without loss of privacy. This critical piece is missing from existing ORAMs, wh...
متن کاملOblivious Outsourced Storage with Delegation
In the past few years, outsourcing private data to untrusted servers has become an important challenge. This raises severe questions concerning the security and privacy of the data on the external storage. In this paper we consider a scenario where multiple clients want to share data on a server, while hiding all access patterns. We propose here a first solution to this problem based on Oblivio...
متن کاملOblivious Outsourced Storage with Delegation
In the past few years, outsourcing private data to untrusted servers has become an important challenge. This raises severe questions concerning the security and privacy of the data on the external storage. In this paper we consider a scenario where multiple clients want to share data on a server, while hiding all access patterns. We propose here a first solution to this problem based on Oblivio...
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ژورنال
عنوان ژورنال: ACM Transactions on Algorithms
سال: 2017
ISSN: 1549-6325,1549-6333
DOI: 10.1145/3070693