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arXiv · 2302.07251

Physical Zero-Knowledge Proof for Ball Sort Puzzle

Suthee Ruangwises
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Abstract

Ball sort puzzle is a popular logic puzzle consisting of several bins containing balls of multiple colors. Each bin works like a stack; a ball has to follow the last-in first-out order. The player has to sort the balls by color such that each bin contains only balls of a single color. In this paper, we propose a physical zero-knowledge proof protocol for the ball sort puzzle using a deck of playing cards, which enables a prover to physically show that he/she knows a solution with $t$ moves of the ball sort puzzle without revealing it. Our protocol is the first zero-knowledge proof protocol for an interactive puzzle involving moving objects.

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Suthee Ruangwises. 2023-02-14. Physical Zero-Knowledge Proof for Ball Sort Puzzle. https://doi.org/10.1007/978-3-031-36978-0_20

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