Abstract
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.
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