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QUANTUM PROXY GROUP SIGNATURE SCHEME WITH χ-TYPE ENTANGLED STATES

XUN-RU YIN

State Key Laboratory of ISN, Xidian University, Xi'an, 710071, China

School of Mathematics, Taishan University, Tai'an, 271021, China

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WEN-PING MA

State Key Laboratory of ISN, Xidian University, Xi'an, 710071, China

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, and

WEI-YAN LIU

Department of Applied Mathematics, Northwestern Polytechnical University, Xi'an, 710072, China

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https://doi.org/10.1142/S0219749912500414Cited by:14 (Source: Crossref)

Abstract

A quantum proxy group signature scheme is proposed with χ-type entangled states. Our scheme combines the properties of group signature and proxy signature. Moreover, the particles in the χ-type state sequence are used to distribute proxy warrants and quantum keys in the initial phase, and then used for quantum signature. Therefore it increases the utilization rate of quantum resources compared with the general quantum signature scheme. Finally, the unconditional security of our scheme is also analyzed.

Keywords:

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