【摘要】 目前的招投标活动存在标书泄密、篡改与证伪等问题.为此,提出一种基于时间控制加密与联盟链(区块链三大分支之一)的招投标系统模型.该模型采用时间控制加密技术解决标书泄密的问题,采用联盟链技术解决标书篡改和证伪问题,同时针对联盟链技术在应用时产生的区块结构与共识算法问题给出解决方案.安全分析与实验测试表明,该模型能够安全高效地解决上述问题.更多还原

【Abstract】 At present,there are some problems in bidding activities,such as leakage,tampering and falsification of bidding documents.To solve these problems,a bidding model was proposed based on timed-release encryption and consortium blockchain(one of the three branches of blockchain).This model used timed-release encryption to solve the problem of leaking bidding documents,and used consortium blockchain to solve the problem of tampering and falsifying bidding documents.At the same time,we gave a solution about the problem of block structure and consensus algorithm occurring in the application of consortium blockchain.Security analysis and experimental tests show that the model can solve the above problems safely and efficiently.更多还原