Cryptanalysis of fair quantum blind signatures

We investigate the fair quantum blind signature scheme proposed by Wang and Wen [Wang T Y and Wen Q Y 2010 Chin. Phys. B 19 060307], which uses the fundamental properties of quantum mechanics and the availability of a trusted arbitrator. However, in this paper, we find that the protocol cannot satisfy the property of non-forgeability even under the condition that the trusted arbitrator is totally credible. Moreover, a simple feasible suggestion for improving the protocol is proposed.

[1]  Michael Wiener,et al.  Advances in Cryptology — CRYPTO’ 99 , 1999 .

[2]  Qiao-Yan Wen,et al.  Quantum threshold group signature , 2008 .

[3]  N. Lutkenhaus,et al.  Comment on ``Arbitrated quantum-signature scheme'' , 2008, 0806.0854.

[4]  T. Elgamal.  A public key cryptosystem and a signature scheme based on discrete logarithms , 1984, CRYPTO 1984.

[5]  Guihua Zeng.  Reply to “Comment on ‘Arbitrated quantum-signature scheme’ ” , 2008 .

[6]  Liusheng Huang,et al.  Quantum group blind signature scheme without entanglement , 2011 .

[7]  Wen Qiao-Yan,et al.  Quantum blind signature based on Two-State Vector Formalism , 2010 .

[8]  Qin Li,et al.  Arbitrated quantum signature scheme using Bell states , 2009 .

[9]  Wen Qiao-Yan,et al.  Cryptanalysis of the arbitrated quantum signature protocols , 2011 .

[10]  V. Roychowdhury,et al.  Optimal encryption of quantum bits , 2000, quant-ph/0003059.

[11]  Hwayean Lee,et al.  Arbitrated quantum signature scheme with message recovery , 2004 .

[12]  Daowen Qiu,et al.  Security analysis and improvements of arbitrated quantum signature schemes , 2010 .

[13]  Yuan Tian,et al.  A weak blind signature scheme based on quantum cryptography , 2009 .

[14]  Guihua Zeng,et al.  Arbitrated quantum-signature scheme , 2001, quant-ph/0109007.

[15]  Wang Tian-yin,et al.  Fair quantum blind signatures , 2010 .

[16]  Wen Qiao-Yan,et al.  Scalable Arbitrated Quantum Signature of Classical Messages with Multi-Signers , 2010 .