基于区块链的数字版权认证模型  

DIGITAL COPYRIGHT AUTHENTICATION MODEL BASED ON BLOCKCHAIN

作　　者：胡殿凯 李宗霖 周炜 王金龙 Hu Diankai;Li Zonglin;Zhou Wei;Wang Jinlong(School of Information and Control Engineering,Qingdao University of Technology,Qingdao 266520,Shandong,China)

机构地区：[1]青岛理工大学信息与控制工程学院,山东青岛266520

出　　处：《计算机应用与软件》2021年第2期311-317,共7页Computer Applications and Software

基　　金：国家自然科学基金项目(61502262)。

摘　　要：针对现有区块链版权系统在区块存储空间有限和版权验证依赖数据库数据的问题,设计一种文本作品的区块链版权认证模型。通过扩展区块结构将作品内容完整存储在区块链中,解决了数据库存储作品内容易被更改的问题。作品版权验证不再依赖数据库作品内容,依靠区块链的不可篡改性和非对称加密技术的唯一性,保证了作品版权验证过程的安全性。理论分析和模型实验结果表明:该模型适用于十万级别的文本作品的版权认证存储,具有良好的性能和较高的安全性。Aiming at the problem that the existing blockchain copyright system has limited block storage space and copyright verification relies on database data,a block chain copyright authentication model for text works is designed.The model completely stored the content of the work in the blockchain through the extended block structure,which solved the problem that the content of the work could be easily changed in the database.The copyright verification of the works no longer depended on the content of the database works,relying on the untouchable modification of blockchain and the uniqueness of asymmetric encryption technology,which guaranteed the security of copyright verification process of works.The theoretical analysis and model experiment results show that the model is suitable for 100000-level copyright authentication storage of text works,and has good performance and high security.

关 键 词：区块链 版权认证 非对称加密 文本作品 时间戳 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]