Implementation of verified set operation protocols based on bilinear accumulators

Abstract

This paper proposes an efficient protocol for verifiable delegation of computation over outsourced set collections. It improves state of the art protocols by using asymmetric bilinear pairing settings for improved performance with respect to previous proposals based on symmetric settings. Moreover, it extends update operations by supporting efficient modifications over multiple sets. With respect to previous work the proposed protocol has a modular design, that clearly identifies its main building blocks and well-defined interfaces among them. This novel conceptualization allows easier auditing of the protocol security properties and serves as the blueprint of a novel implementation that is released publicly (https://weblab.ing.unimore.it/people/ferretti/versop/). To the best of our knowledge, this is the first public implementation of a protocol for verifiable sets operations.