ACM SIGMOD Record - Directions for future database research & development
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Executing SQL over encrypted data in the database-service-provider model
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Database Security and Integrity
Database Security and Integrity
VLDB '90 Proceedings of the 16th International Conference on Very Large Data Bases
Cryptography and Relational Database Management Systems
IDEAS '01 Proceedings of the International Database Engineering & Applications Symposium
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
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
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In this paper, we investigate efficient key updates in encrypted database environments. We study the issues in the context of database-as-a-service (DAS) model that allows organizations to outsource their data management infrastructures to a database service provider. In the DAS model, a service provider employs data encryption techniques to ensure the privacy of hosted data. The security of encryption techniques relies on the confidentiality of the encryption keys. The dynamic nature of the encrypted database in the DAS model adds complexity and raises specific requirements on the key management techniques. Key updates are particularly critical because of their potential impact on overall system performance and resources usage. In this paper, we propose specialized techniques and data structures to efficiently implement the key updates along with the other key management functions to improve the systems’ concurrency performance in the DAS model.