Full-Blind Delegating Private Quantum Computation

• 作者: Jinsuo Liu Lianhua Chi Wenjie Liu Zhaofeng Su Zhenyu Chen
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: Delegating PRIVATE QUANTUM computation universal QUANTUM GATE set full-blind Toffoli GATE circuit optimization
• 年，卷（期）: 2018,（8）
• 页码范围: 211-223
• 页数: 13页
• 分类号: TP3

摘要

The delegating private quantum computation(DQC)protocol with the universal quantum gate set{X,Z,H,P,R,CNOT}was firstly proposed by Broadbent et al.[Broadbent(2015)],and then Tan et al.[Tan and Zhou(2017)]tried to put forward a half-blind DQC protocol(HDQC)with another universal set{H,P,CNOT,T}.However,the decryption circuit of Toffoli gate(i.e.T)is a little redundant,and Tan et al.’s protocol[Tan and Zhou(2017)]exists the information leak.In addition,both of these two protocols just focus on the blindness of data(i.e.the client’s input and output),but do not consider the blindness of computation(i.e.the delegated quantum operation).For solving these problems,we propose a full-blind DQC protocol(FDQC)with quantum gate set{H,P,CNOT,T},where the desirable delegated quantum operation,one of{H,P,CNOT,T},is replaced by a fixed sequence(H,P,CZ,CNOT,T)to make the computation blind,and the decryption circuit of Toffoli gate is also optimized.Analysis shows that our protocol can not only correctly perform any delegated quantum computation,but also holds the characteristics of data blindness and computation blindness.