Quantum proxy signature scheme based on EPR state
Wen Qiao-yan · Jisuanji yingyong yanjiu · 2010
This paper presented a quantum proxy signature scheme which allowed users to obtain the signature and verify of a quantum bit sequence by using the entanglement characteristic of the EPR state and the way of classical encode.In this new scheme,the original signer could delegate his or her signing rights to proxy signer.Guaranteed the unconditionally security of this scheme by quantum key distribution and one time pad.Results show that this new scheme satisfy non-counterfeit,non-disavowal and traceability.