Quantitative system performance: computer system analysis using queueing network models
Quantitative system performance: computer system analysis using queueing network models
Software protection and simulation on oblivious RAMs
Journal of the ACM (JACM)
Journal of the ACM (JACM)
Executing SQL over encrypted data in the database-service-provider model
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Providing Database as a Service
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Balancing confidentiality and efficiency in untrusted relational DBMSs
Proceedings of the 10th ACM conference on Computer and communications security
Order preserving encryption for numeric data
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Modeling and assessing inference exposure in encrypted databases
ACM Transactions on Information and System Security (TISSEC)
Journal of Cognitive Neuroscience
Building castles out of mud: practical access pattern privacy and correctness on untrusted storage
Proceedings of the 15th ACM conference on Computer and communications security
Privacy-Aware Biometrics: Design and Implementation of a Multimodal Verification System
ACSAC '08 Proceedings of the 2008 Annual Computer Security Applications Conference
Fragmentation Design for Efficient Query Execution over Sensitive Distributed Databases
ICDCS '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems
Encryption policies for regulating access to outsourced data
ACM Transactions on Database Systems (TODS)
Securely outsourcing linear algebra computations
ASIACCS '10 Proceedings of the 5th ACM Symposium on Information, Computer and Communications Security
Combining fragmentation and encryption to protect privacy in data storage
ACM Transactions on Information and System Security (TISSEC)
TRUST'10 Proceedings of the 3rd international conference on Trust and trustworthy computing
Privacy-preserving queries over relational databases
PETS'10 Proceedings of the 10th international conference on Privacy enhancing technologies
Efficient and Private Access to Outsourced Data
ICDCS '11 Proceedings of the 2011 31st International Conference on Distributed Computing Systems
Designing secure indexes for encrypted databases
DBSec'05 Proceedings of the 19th annual IFIP WG 11.3 working conference on Data and Applications Security
Supporting concurrency and multiple indexes in private access to outsourced data
Journal of Computer Security - Research in Computer Security and Privacy: Emerging Trends
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With outsourcing emerging as a successful paradigm for delegating data and service management to third parties, the problem of guaranteeing proper privacy protection against the external server is becoming more and more important. Recent promising solutions for ensuring privacy in such scenarios rely on the use of encryption and on the dynamic allocation of encrypted data to memory blocks for destroying the otherwise static relationship between data and blocks in which they are stored. However, dynamic data allocation implies the need to re-write blocks at every read access, thus requesting exclusive locks that can affect concurrency. In this paper we present an approach that provides support for concurrent accesses to dynamically allocated encrypted data. Our solution relies on the use of multiple differential versions of the data index that are periodically reconciled and applied to the main data structure. We show how the use of such differential versions guarantees privacy while effectively supporting concurrent accesses thus considerably increasing the performance of the system.