基于双联盟链的电网分布式异构数据共享研究

Research on distributed heterogeneous data sharing of power grid based on double alliance chain

电网异构数据分布较为广泛,难以实现有效共享,导致数据共享时延增加、吞吐量变小。为了解决这些问题,提出了基于双联盟链的电网分布式异构数据共享方法。利用双联盟链平台开源代码配置数据共享环境,生成新区块。使用哈希值函数检验区块数据,将同一个属性的异构节点放置在同一通道中。引入全同态加密技术分割明文,获取明文序列,实现单节点跨链数据共享。考虑各个节点隐私情况,采用安全多方计算方式处理相似异构数据,保证异构数据一致性,计算所有节点、局部节点权重,保证数据共享安全性,实现多节点跨链数据共享,从而达到电网分布式异构数据加密共享的目标。实验结果表明,该方法的最大共享时延为10 s,最大吞吐量为460 bit,数据共享效果良好。

Heterogeneous data of power grid is widely distributed,and it is difficult to achieve effective sharing,resulting in increased data sharing delay and smaller throughput.In order to solve these problems,a distributed heterogeneous data sharing method based on dual alliance chain is proposed.Use the open source code of the dual alliance chain platform to configure the data sharing environment and generate new blocks.The hash value function is used to check the block data,and the heterogeneous nodes of the same attribute are placed in the same channel.The homomorphic encryption technology is introduced to segment the plaintext and obtain the plaintext sequence,so as to realize the cross chain data sharing of single node.Considering the privacy of each node,the secure multi⁃party computing method is adopted to process similar heterogeneous data,ensure the consistency of heterogeneous data,calculate the weights of all nodes and local nodes,ensure the security of data sharing,and realize the cross chain data sharing of multiple nodes,so as to achieve the goal of encryption and sharing of distributed heterogeneous data in the power grid.The experimental results show that the maximum sharing delay is 10 s,the maximum throughput is 460 bit,and the data sharing effect is good.