TL;DR
This paper introduces quantum coins, a novel quantum money scheme where identical quantum states represent coins, emphasizing security features like anonymity and unforgeability, with two proposed implementation methods.
Contribution
It presents the concept of quantum coins and proposes two new schemes, advancing quantum digital cash with security and practical implementation considerations.
Findings
Proposed quantum coin schemes with security properties
Two implementation methods: black box operations and blind quantum computation
Enhanced understanding of quantum money security features
Abstract
One of the earliest cryptographic applications of quantum information was to create quantum digital cash that could not be counterfeited. In this paper, we describe a new type of quantum money: quantum coins, where all coins of the same denomination are represented by identical quantum states. We state desirable security properties such as anonymity and unforgeability and propose two candidate quantum coin schemes: one using black box operations, and another using blind quantum computation.
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Taxonomy
TopicsQuantum Computing Algorithms and Architecture · Quantum Information and Cryptography · Quantum-Dot Cellular Automata