基于区块链的视频会议数据安全传输技术研究

Research on secure transmission technology of video conference data based on blockchain

针对目前应用于区块链技术中的共识算法共识效率低容易造成资源浪费的缺陷,研究基于区块链的视频会议数据安全传输技术。选取BLS短签名安全上传视频会议数据,利用SPBFT共识算法处理所上传数据,SPBFT共识算法通过发送请求阶段、预准备阶段、反馈阶段、确认阶段四部分优化一致性协议,引入升降级机制以及积分机制降低通信开销,依据视频会议数据传输需求制定智能合约,将所制定智能合约以及审核后数据上传至区块链,区块链由前一个区块块头的hash值传送于区块的链表所建立,区块链完成智能合约分析后传送数据至数据展示平台,实现视频会议数据安全传输。实验结果表明,该方法可有效降低视频会议数据传输的通信开销以及时间开销,错误率均低于2%。

Aiming at the shortcomings of the current consensus algorithm used in the blockchain technology that the consensus efficiency is low and easily leads to waste of resources,research on the secure transmission technology of video conference data based on the blockchain.Selecting the BLS short signature to securely upload the video conference data,and select the SPBFT consensus algorithm to process the uploaded data.The SPBFT consensus algorithm optimizes the consistency agreement through four parts:the request phase,the pre-preparation phase,the feedback phase,and the confirmation phase,and introduces a de-escalation mechanism and an integration mechanism to reduce communication costs,formulate smart contracts based on the data transmission requirements of video conferences,uploading the developed smart contracts and audited data to the blockchain,which is established by transmitting the hash value of the block header of the previous block to the linked list of the block.After the block chain completes the analysis of the smart contract,the data is sent to the data display platform to realize the secure transmission of video conference data.Experimental results show that this method can effectively reduce the communication overhead and time overhead of video conference data transmission,and the error rate is less than 2%.