【摘要】：不經(jīng)意傳輸作為現(xiàn)代密碼學的一個基本工具,在安全協(xié)議的研究中起著重要作用.近年來,許多功能性更強的不經(jīng)意傳輸變種被提出來,以適應不同的需求和環(huán)境.提出一個不經(jīng)意傳輸變種,稱為cut-and-choose雙向不經(jīng)意傳輸.基于同態(tài)加密給出該原語的一輪高效協(xié)議構(gòu)造,且在半誠實模型下形式化證明了該協(xié)議的安全性.將cut-and-choose雙向不經(jīng)意傳輸運用到基于cut-and-choose技術(shù)的安全協(xié)議(尤其是安全兩方計算)中,可以更具模塊化地描述協(xié)議高層框架,降低協(xié)議交互輪數(shù).此外,作為信息安全領(lǐng)域的一個底層基本工具,該原語本身也具有獨立的研究意義.
[Abstract]:As a basic tool of modern cryptography, casual transmission plays an important role in the research of security protocols. In recent years, many more functional inadvertent transmission variants have been proposed to adapt to different needs and environments. Proposed a inadvertent transmission variant, called cut-and-choose bidirectional inadvertent transmission. Based on homomorphic encryption, a round of efficient protocol construction is presented, and the security of the protocol is formally proved under the semi-honest model. When cut-and-choose is applied to the security protocol based on cut-and-choose technology (especially the secure two-party computation), the protocol high-level framework can be described more modularly and the number of protocol interaction wheels can be reduced. In addition, as a basic tool in the field of information security, the primitive has its own independent significance.
【作者單位】： 山東大學計算機科學與技術(shù)學院;
【基金】：國家自然科學基金(61572294、61173139)~~
【分類號】：TP309
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本文編號：2124127