论文标题
全盲委派私人量子计算
Full-Blind Delegating Private Quantum Computation
论文作者
论文摘要
BroadBent \ emph {等人首先提出了带有通用量子门的私人量子计算（DQC）协议，该协议设置了通用量子门设置$ \ left \ weft \ {{x，z，h，p，p，r，cnot} \ right \} $，由BroadBent \ emph {etal。}提出$ \ left \ {{h，p，cnot，t} \ right \} $。但是，\ emph {toffoli}门的解密电路（即\ emph {t}）有点冗余，而tan \ emph {et al}的协议则存在信息泄漏。此外，这两个协议中的这两个方案都只关注数据的失明（即客户的输入和输出），但不考虑计算的失明（即，授权的量子操作）。对于解决这些问题，我们提出了一个具有量子门设置$ \ left \ weft \ {{ {h，p，t，cz，cnot} \ right \} $使计算失明，并且还优化了\ emph {toffoli}门的解密电路。分析表明，我们的协议不仅可以正确执行任何授权的量子计算，而且还具有数据失明和计算失明的特征。
The delegating private quantum computation (DQC) protocol with the universal quantum gate set $\left\{ {X,Z,H,P,R,CNOT} \right\}$ was firstly proposed by Broadbent \emph{et al.}, and then Tan \emph{et al.} tried to put forward an half-blind DQC protocol (HDQC) with another universal set $\left\{ {H,P,CNOT,T} \right\}$. However, the decryption circuit of \emph{Toffoli} gate (i.e., \emph{T}) is a little redundant, and Tan \emph{et al}.'s protocol 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 $\left\{ {H,P,CNOT,T} \right\}$ , where the desirable delegated quantum operation, one of $\left\{ {H,P,CNOT,T} \right\}$ , is replaced by a fixed sequence $\left \{ {H,P,T,CZ,CNOT} \right\}$ to make the computation blind, and the decryption circuit of \emph{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.
