Abstract
Using the correlation states of the GHZ triplet, a proxy blind signature scheme is presented. Existing classical proxy signatures cannot guarantee the security with the emergency of quantum computing technology, current quantum signature schemes could only deliver unconditional security, our quantum proxy blind signature scheme has the characteristics of proxy signature, non-counterfeit, non-disavowal and blindness by adopting quantum key preparation, quantum encryption algorithm and quantum entanglement, Our quantum proxy blind signature scheme has a foreseeable application to the E-business, E-governments, and etc.
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