Enhanced Multiparty Controlled QSDC Using GHZ State

Recently, Gao et al. [Opt. Commun. 283 (2010) 192] pointed out that Wang et al.'s multiparty controlled quantum secure direct communication (CQSDC) protocol [Opt. Commun. 266 (2006) 732] has the information leakage problem and proposed an improved protocol. However, in the improved protocol, due to the introduction of an additional random sampling to avoid the weakness, the qubit efficiency is decreased. By introducing the base changing technique to the random sampling in Wang et al.'s protocol, this study overcomes the information leakage problem and provides a better qubit efficiency.

[1]  Tzonelih Hwang,et al.  EPR quantum key distribution protocols with potential 100% qubit efficiency , 2007, IET Inf. Secur..

[2]  Z. Yuan,et al.  Quantum key distribution over 122 km of standard telecom fiber , 2004, quant-ph/0412171.

[3]  Yan Xia,et al.  Controlled quantum secure direct communication using a non-symmetric quantum channel with quantum superdense coding , 2007 .

[4]  You-Bang Zhan,et al.  Controlled Quantum Secure Direct Communication by Using Four Particle Cluster States , 2009 .

[5]  Li Dong,et al.  Multiparty-controlled quantum secure direct communication , 2007 .

[6]  Tian-Yin Wang,et al.  CONTROLLED QUANTUM SECURE DIRECT COMMUNICATION WITH QUANTUM ENCRYPTION , 2008 .

[7]  Su-Juan Qin,et al.  Cryptanalysis and improvement of a secure quantum sealed-bid auction , 2009 .

[8]  Wen Qiao-Yan,et al.  A Special Eavesdropping on One-Sender Versus N-Receiver QSDC Protocol , 2008 .

[9]  Qiaoyan Wen,et al.  Comment on: “Quantum exam” [Phys. Lett. A 350 (2006) 174] , 2007 .

[10]  Tzonelih Hwang,et al.  Quantum Secret Sharing Using GHZ-Like State , 2010 .

[11]  Su-Juan Qin,et al.  An external attack on the Brádler–Dušek protocol , 2007 .

[12]  Tzonelih Hwang,et al.  THE ENHANCEMENT OF ZHOU et al.'s QUANTUM SECRET SHARING PROTOCOL , 2009 .

[13]  Weinfurter,et al.  Quantum cryptography with entangled photons , 1999, Physical review letters.

[14]  Tzonelih Hwang,et al.  New Efficient Three-Party Quantum Key Distribution Protocols , 2009, IEEE Journal of Selected Topics in Quantum Electronics.

[15]  Li Dong,et al.  A revised controlled deterministic secure quantum communication with five-photon entangled state , 2010 .

[16]  Su-Juan Qin,et al.  Cryptanalysis of multiparty controlled quantum secure direct communication using Greenberger-Horne-Zeilinger state , 2010 .

[17]  Yanxia Huang,et al.  Controlled Quantum Secure Direct Communication with Local Separate Measurements in Cavity QED , 2010 .

[18]  Su-Juan Qin,et al.  Comment on 'Two-way protocols for quantum cryptography with a nonmaximally entangled qubit pair' , 2010 .

[19]  Richard J. Hughes,et al.  Practical free-space quantum key distribution over 10 km in daylight and at night , 2002, quant-ph/0206092.

[20]  Jie Song,et al.  PERFECT CONTROLLED QUANTUM SECURE DIRECT COMMUNICATION , 2008 .

[21]  Wang Yong,et al.  Classification and Approximate Solutions to Perturbed Nonlinear Diffusion-Convection Equations , 2008 .

[22]  Charles H. Bennett,et al.  Quantum cryptography without Bell's theorem. , 1992, Physical review letters.

[23]  N. Gisin,et al.  Quantum key distribution over 67 km with a plug , 2002 .

[24]  Man Zhong-xiao,et al.  Controlled Quantum N-Party Simultaneous Direct Communication , 2007 .

[25]  Liu Yimin,et al.  Revisiting Controlled Quantum Secure Direct Communication Using a Non-symmetric Quantum Channel with Quantum Superdense Coding , 2008 .

[26]  Gang Xu,et al.  CONTROLLED QUANTUM SECURE DIRECT COMMUNICATION WITH W STATE , 2008 .

[27]  Su-Juan Qin,et al.  Comment on “Controlled DSQC using five-qubit entangled states and two-step security test” , 2009 .

[28]  G. Long,et al.  Theoretically efficient high-capacity quantum-key-distribution scheme , 2000, quant-ph/0012056.

[29]  Li Dong,et al.  Controlled deterministic secure quantum communication using five-qubit entangled states and two-step security test , 2009 .

[30]  Jian Wang,et al.  Quantum secure direct communication based on order rearrangement of single photons , 2006, quant-ph/0603100.

[31]  P. Grangier,et al.  Single photon quantum cryptography. , 2002, Physical Review Letters.

[32]  Quan Zhang,et al.  Multiparty controlled quantum secure direct communication using Greenberger–Horne–Zeilinger state , 2006 .