caa a22 4500 445886781 CHVBK 20180317145602.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s11128-010-0225-7 doi (NATIONALLICENCE)springer-10.1007/s11128-010-0225-7 A multiparty quantum proxy group signature scheme for the entangled-state message with quantum Fourier transform [Elektronische Daten] [Jinjing Shi, Ronghua Shi, Ying Tang, Moon Lee] A novel multiparty quantum proxy group signature scheme is proposed based on the discrete quantum Fourier transform in order to improve the efficiency and the security of quantum signature for an n-dimensional quantum message, in which the generation and verification of the signature can be successfully conducted only if all the n participants cooperate with each other and with the message owner's, the receiver's and the arbitrator's help. The quantum parallel algorithm is applied to efficiently compare the restored quantum message to the original quantum message both of which contain a large amount of information. All the operations in signing and verifying phase can be executed in quantum circuits. The analysis shows that our scheme is more efficient than other traditional quantum signature schemes, and a secure quantum proxy group signature can be achieved effectively for a contract that needs the cosigner of multi participants. It has a wide application to E-payment system, Online contract, Online notarization and etc. Springer Science+Business Media, LLC, 2011 Quantum signature nationallicence Group signature nationallicence Proxy signature nationallicence Quantum computation nationallicence Quantum Fourier transform nationallicence Shi Jinjing School of Information Science & Engineering, Central South University, 410083, Changsha, China aut Shi Ronghua School of Information Science & Engineering, Central South University, 410083, Changsha, China aut Tang Ying School of Physics Science & Technology, Central South University, 410083, Changsha, China aut Lee Moon Institute of Information and Communication, Chonbuk National University, 561-756, Chonju, Korea aut Quantum Information Processing Springer US; http://www.springer-ny.com 10/5(2011-10-01), 653-670 1570-0755 10:5<653 2011 10 11128 https://doi.org/10.1007/s11128-010-0225-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11128-010-0225-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shi Jinjing School of Information Science & Engineering, Central South University, 410083, Changsha, China aut NATIONALLICENCE 700 1- Shi Ronghua School of Information Science & Engineering, Central South University, 410083, Changsha, China aut NATIONALLICENCE 700 1- Tang Ying School of Physics Science & Technology, Central South University, 410083, Changsha, China aut NATIONALLICENCE 700 1- Lee Moon Institute of Information and Communication, Chonbuk National University, 561-756, Chonju, Korea aut NATIONALLICENCE 773 0- Quantum Information Processing Springer US; http://www.springer-ny.com 10/5(2011-10-01), 653-670 1570-0755 10:5<653 2011 10 11128 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer