Database outsourcing is becoming increasingly popular introducing a new paradigm, called database-as-a-service, where an encrypted client's database is stored at an external service provider. Existing proposals for querying encrypted databases are based on the association, with each encrypted tuple, of additional indexing information obtained from the plaintext values of attributes that can be used in the queries. However, the relationship between indexes and data should not open the door to inference and linking attacks that can compromise the protection granted by encryption
Damiani, E., De Capitani Di Vimercati, S., Foresti, S., Samarati, P., Viviani, M. (2006). Measuring Inference Exposure in Outsourced Encrypted Databases. In Quality Of Protection : Security Measurements and Metrics (pp.185-195) [10.1007/978-0-387-36584-8_15].
Measuring Inference Exposure in Outsourced Encrypted Databases
Damiani, E;Samarati, P;Viviani, M.
2006
Abstract
Database outsourcing is becoming increasingly popular introducing a new paradigm, called database-as-a-service, where an encrypted client's database is stored at an external service provider. Existing proposals for querying encrypted databases are based on the association, with each encrypted tuple, of additional indexing information obtained from the plaintext values of attributes that can be used in the queries. However, the relationship between indexes and data should not open the door to inference and linking attacks that can compromise the protection granted by encryption
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