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Arbitrated quantum signature scheme based on entanglement swapping with signer anonymity |
| Li Wei (李伟)a b, Fan Ming-Yu (范明钰)b, Wang Guang-Wei (王光卫)b |
a School of Information Science and Engineering, Xinjiang University, Urumqi 830046, China;
b 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 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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Received: 10 April 2012
Revised: 11 June 2012
Accepted manuscript online:
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PACS:
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03.67.Dd
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(Quantum cryptography and communication security)
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03.67.Hk
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(Quantum communication)
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| Fund: Project supported by the National High Technology Research and Development Program (863 Program) of China, (Grant Nos. 2009AA01Z403 and 2009AA01Z435). |
Corresponding Authors:
Li Wei
E-mail: mei7i@yahoo.cn
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Cite this article:
Li Wei (李伟), Fan Ming-Yu (范明钰), Wang Guang-Wei (王光卫) Arbitrated quantum signature scheme based on entanglement swapping with signer anonymity 2012 Chin. Phys. B 21 120305
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