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A blind quantum signature scheme with χ-type entangled states is proposed, which can be applied to E-voting system. In this scheme, the particles in χ-type state sequence are used for quantum key distribution first, and then for quantum signature. Our scheme is characterized
by its blindness, impossibility of forgery, impossibility of disavowal. In addition, our scheme can perform an audit program
with respect to the validity of the verification process in the light of actual requirements. The security of the scheme is
also analyzed. 相似文献
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A multiparty quantum key agreement protocol based on three-photon entangled states is proposed. In this scheme, the quantum channel between all parties is that of a closed loop, in which the qubit transmission is one-way. Each party can obtain the sum of the other parties’ secret key values through the coding rules instead of extracting their private keys. The shared secret key cannot be determined by any subset of all the participants except the universal set and each party makes an equal contribution to the final key. Moreover, the security analysis shows our protocol can resist both outside attacks and inside attacks.
相似文献4.
Xun-Ru Yin Wen-Ping Ma Wei-Yan Liu 《International Journal of Theoretical Physics》2013,52(11):3915-3921
A three-party quantum key agreement protocol with two-qubit entangled states is proposed. In this paper, the three parties are entirely peer entities and each party has a equal contribution to the establishment of the shared secret key. Moreover, any subset of the three participants except the universal set can not determine the shared key alone. Finally, the security analysis shows that the present protocol can resist against both the outsider attack and the insider attack. 相似文献
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