Comment on “The enhanced quantum blind signature protocol”

Comment on “The enhanced quantum blind signature protocol” Recently, Yang et al. (Quantum Inf Process 12:109–117, 2013) proposed an enhancement on a quantum blind signature based on the two-state vector formalism, afterward a special attack strategy on Yang et al.’s enhanced scheme is put forward, in which the dishonest signer can illegally reveal 25 % of the message of the blind signature requester, but an effective solution has not been presented in their paper. In this paper, we further analyze Yang el al.’s enhanced scheme and find that there is another potential loophole which the blind signature requester can forge the message signer’s signature. Then, an improvement scheme is proposed. Finally, analysis results show that our improved scheme can withstand the blind signature requester’s forgery attack and the above special attack strategy, and our quantum efficiency will still be the same as the primary scheme. Quantum Information Processing Springer Journals

Comment on “The enhanced quantum blind signature protocol”

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Springer US
Copyright © 2014 by Springer Science+Business Media New York
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
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