摘要
秘密共享是指将一个秘密按适当的方式进行隐藏或拆分,只有若干个参与者一同协作才能恢复该秘密,该技术在云计算领域中能够确保信息安全和数据保密。提出了一种不使用纠缠态的量子秘密共享协议,通过使用量子密码算法确保系统的安全性。相比其他的秘密共享协议,该协议具有以下优点:与传统的基于数论的秘密共享协议相比,本协议由于使用量子通信的技术,从而能够有效抵抗Shor算法攻击;相比其他的量子秘密共享协议,由于本协议没有使用量子纠缠态,在技术程度上更容易实现;如果存在攻击者或恶意的参与者,该协议能够在秘密恢复过程中迅速发现,避免恢复错误的秘密。
Secret sharing refers to the method for distributing a secret amongst a group of participants, and the secret can be reconstructed only when a sufficient number of shares are combined together, it can ensure the information secure and data protection in cloud computing. This paper proposes a new quantum secret sharing protocol without particle entangled state, which can guarantee unconditional security by using quantum one-time pads, quantum key cryptosystem and the technique of comparing two unknown quantum states. This protocol has following advantages： compile with traditional secret sharing, the new scheme can resist the Shot algorithm by using of quantum communication technology; without particle entangled state, the protocol can reduce the complexity of implementation; if there exists attacker or malicious participant, the new protocol can discover the situation, and it can avoid recover the wrong secret.
出处
《电信科学》
北大核心
2012年第1期109-112,共4页
Telecommunications Science
基金
国家自然科学基金资助项目(No.60873206)
关键词
量子秘密共享
量子态比较
纠缠态
quantum secret sharing, comparing quantum state, entangled state
