零知识证明应用到区块链中的技术挑战  

Technical challenges in applying zero-knowledge proof to blockchain

作　　者：李康[1,2] 孙毅 张珺[3] 李军 周继华[5] 李忠诚 LI Kang1,2, SUN Yi1, ZHANG Jun3, LI Jun4, ZHOU Jihua5, LI Zhongcheng1(1. Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China 2. University of Chinese Academy of Sciences, Beijing 100049, China 3. Inner Mongolia University, Huhhot 010021, China 4. Bubi （Beijing） Networking Co., Ltd., Beijing 100190, China 5. Chongqing Jinmei Communication Co., Ltd., Chongqing 400030, China)

机构地区：[1]中国科学院计算技术研究所,北京100190 [2]中国科学院大学,北京100049 [3]内蒙古大学,内蒙古自治区呼和浩特010021 [4]布比(北京)网络技术有限公司,北京100190 [5]重庆金美通信有限责任公司,重庆400030

出　　处：《大数据》2018年第1期57-65,共9页Big Data Research

摘　　要：区块链是一种以密码学算法为基础的点对点分布式账本技术,然而,公开透明的区块链账本辅以社会学挖掘、数据挖掘等统计学方法,使得用户的隐私面临重大威胁,因而隐私保护成为当前区块链技术研究的热点。总结了已有的隐私保护方案,重点聚焦于零知识证明技术,阐述并分析了零知识证明应用到区块链隐私保护方案中的技术挑战,并给出了具有指导意义的解决方案。Blockchain is a peer-to-peer distributed ledger technology based on cryptography,However,open and transparent blockchain ledger,combined with sociological mining,data mining and other statistical methods,brings a major threat to user＇s privacy.Therefore,privacy protection becomes a hot issue on the blockchain technology research.The existing privacy protection schemes were summarized,especially focusing on the zero-knowledge proof techniques.The technical challenges in applying zero-knowledge proof to blockchain privacy protection schemes were expounded and analyzed,and position solutions to these challenges were given.

关 键 词：区块链 隐私保护 零知识证明 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]