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基于EPR态的量子代理签名方案 被引量:4

Quantum proxy signature scheme based on EPR state
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摘要 提出了一种量子代理签名方案,利用量子力学中Einstein-Podolsky-Rosen(EPR)的纠缠特性并结合经典编码方法来实现对量子比特串的签名和验证。在本方案中,原始签名人可以将自己的签名权委托给代理签名人,而量子密钥分配和一次一密保证了新方案的无条件安全性。研究表明新方案满足不可伪造性、不可否认性和可追踪性。 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.
出处 《计算机应用研究》 CSCD 北大核心 2010年第2期675-677,共3页 Application Research of Computers
基金 国家自然科学基金资助项目(60873191 60821001) 高等学校博士学科点专项科研基金资助课题(200800131016) 北京市科技新星计划项目(2008B51) 教育部科学技术研究重点项目(109014) 北京市自然科学基金资助项目(4072020) 现代通信国家重点实验室基金资助项目(9140C1101010601) ISN开放基金
关键词 量子签名 代理签名 量子密码 EPR态 quantum signature proxy signature quantum cryptography EPR state
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