An arbitrated quantum signature scheme based on entanglement swapping with signer anonymity |
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| Authors: | Li Weiab Fan Ming-Yub and Wang Guang-Wei |
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| Affiliation: | [1]School of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; [2]School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | In this paper an arbitrated quantum signature scheme based on entanglement swapping is proposed.In this scheme a message to be signed is coded with unitary operators.Combining quantum measurement with quantum encryption, the signer can generate the signature for a given message.Combining the entangled states generated by the TTP’s Bell measurement with the signature information,the verifier can verify the authentication of a signature through a single quantum state measurement.Compared with previous schemes,our scheme is more efficient and less complex, furthermore,our scheme can ensure the anonymity of the signer. |
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| Keywords: | quantum cryptography quantum signature Bell states entanglement swapping |
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