Chin. Phys. B ›› 2012, Vol. 21 ›› Issue (12): 120305-120305.doi: 10.1088/1674-1056/21/12/120305

• GENERAL • 上一篇    下一篇

Arbitrated quantum signature scheme based on entanglement swapping with signer anonymity

李伟a b, 范明钰b, 王光卫b   

  1. 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
  • 收稿日期:2012-04-10 修回日期:2012-06-11 出版日期:2012-11-01 发布日期:2012-11-01
  • 基金资助:
    Project supported by the National High Technology Research and Development Program (863 Program) of China, (Grant Nos. 2009AA01Z403 and 2009AA01Z435).

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   

  1. 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
  • Received:2012-04-10 Revised:2012-06-11 Online:2012-11-01 Published:2012-11-01
  • Contact: Li Wei E-mail:mei7i@yahoo.cn
  • Supported by:
    Project supported by the National High Technology Research and Development Program (863 Program) of China, (Grant Nos. 2009AA01Z403 and 2009AA01Z435).

摘要: 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.

关键词: quantum cryptography, quantum signature, Bell states, entanglement swapping

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.

Key words: quantum cryptography, quantum signature, Bell states, entanglement swapping

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.67.Hk (Quantum communication)