基于纠缠交换(n-1，n)门限量子秘密共享方案

唐黎明, 刘伟华, 刘焕平

程资, 靳俐荣, 石金晶

文章利用生成矩阵分割法提出了（k,n）量子门限秘密共享方案。与以往经典方案相比,它具有更好的安全性和可靠性。从量子方案的角度看,编码多样性提高了密钥破译难度。针对生成矩阵的循环周期问题和因某些元素不存在本原根而不能构造生成矩阵的问题,文章也提出了解决方案。本文方案的核心思想是参照量子信息与经典信息的对应关系,利用有限域中的本原根构造生成矩阵来实现经典秘密的分割,生成矩阵满足任意k列列向量线性独立;传输采用了基于超密集编码的量子安全直接通信。

麻敏, 李志慧, 徐廷廷

This paper constructs a class of verifiable secret sharing scheme based on Chinese Remainder Theorem and Bell states.In the distribution phase,Alice distributes the shares to the participants through the quantum secure channel.In the recovery phase,Alice generates a two-bit Bell state in Hilbert space,and then the participants and Alice perform some unitary operations on the Bell state to reconstruct the secret.Analysis results show the scheme can resist intercepted retransmission attack,entangled measunement attack,participants attack,and trojan horse attack.

尚庆 龚

邹鹏程, 刘大凤

周晓迈, 王新梅