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Economical multiparty simultaneous quantum identity authentication based on Greenberger--Horne--Zeilinger states |
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| Authors: | Yang Yu-Guang and Wen Qiao-Yan |
| Affiliation: | College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, China; State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China; State Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China |
| Abstract: | A multiparty simultaneous quantum identity authentication protocolbased on Greenberger--Horne--Zeilinger (GHZ) states is proposed. Themulti-user can be authenticated by a trusted third party (TTP)simultaneously. Compared with the scheme proposed recently (Wanget al 2006, Chin. Phys. Lett. 23(9) 2360), theproposed scheme has the advantages of consuming fewer quantum andclassical resources and lessening the difficulty and intensity ofnecessary operations. |
| Keywords: | quantum identity authentication multiparty simultaneous quantum identity authentication Greenberger--Horne--Zeilinger state |
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