Abstract
Due to high complexity, comparison protocols with secret inputs have been a bottleneck in the design of privacy-preserving cryptographic protocols. Different solutions based on homomorphic encryption, garbled circuits and secret sharing techniques have been proposed over the last few years, each claiming high efficiency. Unfortunately, a fair comparison of existing protocols in terms of run-time, bandwidth requirement and round complexity has been lacking so far. In this paper, we analyze the state-of-the-art comparison protocols for a two-party setting in the semi-honest security protocol. We analyze their performances in three stages, namely initialization, pre-processing and online computation, by implementing them on a single platform. The results of our experiments provide a clear insight for the research community into the advantages and disadvantages of the various techniques .
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