Arbitrated quantum signature scheme based on reusable key |
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Authors: | ChaoHua Yu GongDe Guo Song Lin |
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Institution: | 1. School of Mathematics and Computer Science, Fujian Normal University, Fuzhou, 350007, China 2. Key Lab of Network Security and Cryptography, Fujian Normal University, Fuzhou, 350007, China
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Abstract: | An arbitrated quantum signature scheme without using entangled states is proposed. In the scheme, by employing a classical hash function and random numbers, the secret keys of signer and receiver can be reused. It is shown that the proposed scheme is secure against several well-known attacks. Specifically, it can stand against the receiver’s disavowal attack. Moreover, compared with previous relevant arbitrated quantum signature schemes, the scheme proposed has the advantage of less transmission complexity. |
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Keywords: | arbitrated quantum signature disavowal reusable key |
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