一种基于区块链的数据完整性验证解决方案

数据在物联网环境下采集、传递、存储过程中,如果缺少严密的安全防范措施,可能会出现假冒的、被篡改的或者过期的数据,这些缺乏完整性保护的物联网数据会对物联网应用造成极大的危害。数据的完整性是确保数据可信的必要条件。区块链的去中心化、分布式、持久性、不可篡改等属性,使得区块链目前成为在具有隐私保护应用需求的数据完整性验证的优选方法。文中提出了一种基于区块链的数据完整性验证的区块链结构和基于去中心化时间戳的数据完整性验证机制,设计了基于区块链的数据完整性验证的智能合约,在以太坊平台上模拟真实场景。实验结果表明,基于区块链的数据完整性验证技术方案,可以在去中心化的应用环境下,并在数据分散存储以保护数据隐私的前提下,确保数据的完整性。

A Data Integrity Verification Solution Based on Blockchain

In the process of data collection,transmission and storage in the IoT environment,if there is no strict security precautions,fake,tampered or expired data may appear.These IoT data without integrity protection will be harmful to the Internet of Things applications.Data integrity is the requirement to determine that the data is trustworthy.Due to the decentralized,distributed,persistent,tamper-free and other attributes of blockchain,blockchain has become the preferred method for data integrity verification in applications with privacy protection requirements.We propose a blockchain architecture based blockchain data integrity verification and data integrity verification mechanism based on decentralized timestamp,and design a smart contract based blockchain for data integrity verification.The real scenario is simulated on the Ethereum platform.The test shows that the blockchain-based data integrity verification technology can be used to store data in a decentralized manner to protect data privacy and ensure data integrity in the decentralized application environment.