区块链动态同步机制下的一次一密加密设计  

Design of one-time pad encryption under blockchain dynamic synchronization mechanism

作　　者：邬可可[1] 张平安[1] 但唐仁[1] 胡光武[1] WU Keke;ZHANG Pingan;DAN Tangren;HU Guangwu(School of Computer Sciences,Shenzhen Institute of Information Technology,Shenzhen,China 518172)

机构地区：[1]深圳信息职业技术学院计算机学院,广东深圳518172

出　　处：《深圳信息职业技术学院学报》2023年第2期71-77,共7页Journal of Shenzhen Institute of Information Technology

基　　金：广东省自然科学基金资助项目(项目编号:2018A030313746);深圳信息职业技术学院科研创新平台(项目编号:PT2020E001);深圳信息职业技术学院校企协同创新项目(项目编号:SZIIT2020KJ005)。

摘　　要：一次一密加密技术提供了最完善的安全性,但是在实际应用中,存在着大规模随机密钥的产生和分配的难题而很难被推广使用。提出一种基于区块链动态同步机制的一次一密加密设计,可以解决一次一密加密技术存在的这两个难题。区块链网络每隔一段时间就会动态产生一个新区块,新区块可以提供大规模真正的随机字符,可以解决一次一密加密技术中产生大规模真随机密钥的难题。同时,新区块会被同步广播到整个区块链网络节点,新区块的哈希值可以作为一次一密密码系统的加解密双方的随机数种子,通过加解密双方相同的随机数发生器产生相同的真正随机字符作为加解密的一次性密钥,可以解决一次一密加密技术中密钥分配的难题,从而有利于推动一密一次加密技术的普及应用。One-time pad encryption technology provides the most perfect security,but in practical application,it is difficult to popularize because of the problem of generating and distributing large-scale random keys.A one-time pad encryption based on blockchain dynamic synchronization mechanism is proposed to solve the two problems of one-time pad encryption technology.Every once in a while,the blockchain network will dynamically generate a new block,which can provide large-scale real random characters and solve the problem of generating large-scale real random keys in one-time encryption technology.At the same time,the new block will be synchronously broadcast to the whole blockchain network nodes.The hash value of the new block can be used as the random number seed of both encryption and decryption sides of the one-time pad encryption system.By using the same random number generator on both sides of encryption and decryption to generate the same real random characters as the one-time key for encryption and decryption,the difficult problem of key distribution in the one-time pad encryption technology can be solved,so as to promote its popularization and application.

关 键 词：区块链 一次一密 随机数 密钥分配 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]