基于受控隐形传态的量子签名及量子投票

发布时间：2019-03-05 18:48

【摘要】：数字签名,在密码学中占有极度重要的地位,在电子商务,民主选举,和遗嘱财产分配问题等这些相关领域起着举足轻重的作用.近些年来,量子技术迅速发展,量子计算能力也不断提高,经典数字签名变得不再安全；与此同时,量子密码学的研究越来越受到广大学者的青睐.对比于传统密码学,量子密码学有其得天独厚的特性：满足无条件安全性,并且可以防止窃听者攻击.基于这样的安全特性,已成为学者研究热点的量子密码学有着非常重要的发展前景和重大的研究意义.本文主要研究基于受控隐形传态的几种类型的方案：多重代理盲签名；代理多重签名；量子投票协议,所得研究成果如下：1.分析了一个基于四粒子纠缠态的量子多重代理盲签名方案.多重代理盲签名指1→m的盲签名：一个原始签名人可将签名权委托给多个代理签名人进行签名,且签名者所签署的消息是经盲化的,从而避免敏感消息的暴露.本文在受控隐形传态的理论上,设计出一个量子多重代理盲签名方案.与传统的签名方案不同,由量子一次一密和密钥分发协议保证安全性.另一方面,由于该签名方案是以四粒子纠缠态作为通信信道的,相比其他量子签名协议节省了资源,且经过安全性分析证明,该方案满足无条件安全性,不可否认性和盲性.2.提出了基于八粒子纠缠态的两个量子代理多重签名方案,指m→1的签名方案：可允许多名原始签名人委托给一名代理签名人去完成签名.并且在第二个方案中,基于八粒子纠缠态的分层物理结构,在签名阶段我们只需要三名原始签名人(并不是六个)便可完成代理签名方案,不仅增强了实用性,而且也提高了效率.3.分析了一个量子投票协议.在公正机构CA用零知识证明的量子身份认证方法匿名认证投票人的合法身份后,并且在监票者的监督下,通过量子操作隐形传态,计票者会成功计票并获知合法投票者的投票内容。
[Abstract]:Digital signature, which plays an important role in cryptography, plays an important role in electronic commerce, democratic election, and the distribution of testamentary property. In recent years, with the rapid development of quantum technology and the continuous improvement of quantum computing ability, classical digital signatures have become insecure; at the same time, the research of quantum cryptography has become more and more popular among scholars. Compared with traditional cryptography, quantum cryptography has a unique property: it satisfies unconditional security and can prevent eavesdropper attack. Based on such security characteristics, quantum cryptography, which has become a hot topic for scholars, has a very important development prospect and significant research significance. In this paper, we mainly study several types of schemes based on controlled teleportation: multi-proxy blind signature; proxy multi-signature; quantum voting protocol. A quantum multi-proxy blind signature scheme based on four-particle entangled states is analyzed. Multiple proxy blind signature refers to blind signature of 1 m: an original signer can delegate the signature right to several proxy signers for signature, and the message signed by the signer is blinded so as to avoid the exposure of sensitive messages. In this paper, a quantum multi-proxy blind signature scheme is designed based on the controlled teleportation theory. Unlike traditional signature schemes, quantum-once-secret and key distribution protocols guarantee security. On the other hand, since the signature scheme uses four-particle entangled states as the communication channel, it saves resources compared with other quantum signature protocols, and the security analysis shows that the scheme satisfies unconditional security. Non-repudiation and blindness. In this paper, two quantum proxy multi-signature schemes based on eight-particle entangled states are proposed, that is, m-1 signature scheme, which allows multiple original signers to delegate to a proxy signer to complete the signature. And in the second scheme, based on the hierarchical physical structure of eight-particle entangled states, we only need three original signers (not six) to complete the proxy signature scheme in the signature phase, which not only enhances the practicability of the proxy signature scheme. And it also improves efficiency. 3. A quantum voting protocol is analyzed. After an impartial organization, CA, anonymously authenticates the legitimate identity of a voter with a quantum identity authentication method of zero-knowledge proof, and under the supervision of the tellers, teleports states via quantum operations. The teller will count the votes successfully and be informed of the votes of the legal voters.
【学位授予单位】：陕西师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：O413;TN918

【相似文献】