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Barrington Plays Cards: The Complexity of Card-Based Protocols

Publication at Faculty of Mathematics and Physics |
2021

Abstract

In this paper we study the computational complexity of functions that have efficient card-based protocols. A study of card-based protocols was initiated by den Boer [6] as a means for secure two-party computation.

Our contribution is two-fold: We classify a large class of protocols with respect to the computational complexity of functions they compute, and we propose other encodings of inputs which require fewer cards than the usual 2-card representation.