Obscure: Information-Theoretically Secure, Oblivious, and Verifiable Aggregation Queries
2020
We develop a secret-sharing-based prototype, entitled Obscure that provides communication-efficient and information-theoretically secure algorithms for aggregation queries using multi-party computation (MPC). The query execution algorithms over secret-shared data are developed to deal with an honest but curious, as well as, a malicious server by providing result verification algorithms. Obscure prevents an adversary to know the data, the query, and the tuple-identity satisfying the query.
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