基于Rabin的概率型1选1不经意传输协议  

Probabilistic 1-out-of-1 Oblivious Transfer Protocol Based on Rabin

作　　者：张艳硕[1] 赵瀚森 李泽昊 ZHANG Yanshuo;ZHAO Hansen;LI Zehao(Beijing Electronic Science and Technology Institute,Beijing 100070,P.R.China)

机构地区：[1]北京电子科技学院,北京市100070

出　　处：《北京电子科技学院学报》2021年第1期1-9,共9页Journal of Beijing Electronic Science And Technology Institute

基　　金：中央高校基本科研业务费项目(No.328202008);教育部信息安全一流专业建设点项目资助;国家重点研发计划基金资助项目(No.2017YFB0801803)。

摘　　要：不经意传输协议是密码学的一个基本协议,是一种可以保护隐私的双方通信协议,通信双方可以以一种模糊化的方式传送消息。这使得协议的接收方以不经意的方式得到协议发送方传输的某个消息,这样就可以保证接收者在不知道发送者隐私的前提下,保护接受者的隐私不被发送者所知道。本文在经典1选1不经意传输协议的基础上,对接收方成功恢复秘密信息的概率只能是1/2的问题进行了一般化处理,使得接收方可以以不是1/2的概率来成功恢复秘密信息。在Rabin的思路的基础上,提出概率型1选1不经意传输协议及其性质说明,然后给出概率型1选1不经意传输协议的具体方案和举例,最后对方案进行具体分析,分析表明概率型1选1不经意传输协议的方案是安全的,可以完成概率型1选1不经意传输协议,实现更多的概率类型。As a basic protocol in cryptography,oblivious transfer protocol could protect the privacy of both sides of a communication and provides a fuzzy way for the two sides to transmit messages.With this protocol,the receiver obliviously gets a message from the sender,which protects the receiver’s privacy from being known by the sender on the premise of the receiver being unconscious of the sender’s privacy.Based on the classic one out of one oblivious transfer protocol,the problem that the probability of the receiver recovering the secret information is restricted to 1/2 is generalized in this paper,which enables the receiver to recover the secret information successfully without the restriction of the 1/2 probability.On the basis of the Rabin’s idea,a probabilistic one out of one oblivious transfer protocol is proposed in this paper and the properties of the proposed protocol are described.Concrete schemes and examples of the proposed protocol are also presented.Finally,the concrete schemes are analyzed in details.The analysis indicates that our proposed protocol is safe,and could complete the probabilistic one out of one oblivious transfer protocol and realize more probabilistic types.

关 键 词：不经意传输 协议 概率型 1选1 安全 

分 类 号：TN918.1[电子电信—通信与信息系统]