采用拒绝服务的无线区块链网络区块传输策略

无线区块链网络中存在恶意分叉与非恶意分叉的安全问题,针对非恶意分叉问题,提出了一种新的区分优先级的区块传输策略.该策略决定区块和交易在信道中是立即传输还是排队等待,通过降低区块排队时延来减少非恶意分叉的发生.针对分叉区块造成的系统算力分化问题,提出了一种拒绝服务策略来协助区块传输.区块传输过程是一个排队等待通信节点服务...

Block transmission strategy of wireless blockchain network based on denial of service

There are security problems of malicious bifurcation and non-malicious bifurcation in wireless blockchain networks. Aiming at the non-malicious bifurcation in bifurcation attacks, a new priority differentiated block transmission strategy is proposed. This strategy determines whether blocks and transactions are transmitted immediately or queued in the channel, and reduces the occurrence of non-malicious bifurcation by reducing the block queuing delay. At the same time, aiming at the problem of system computing power differentiation caused by forked blocks, a denial of service strategy is proposed to assist block transmission. Since the block transmission process is a process of queuing for the service of communication nodes, it is modeled by using the dual queue single server queuing model. The system performance of the proposed strategy is analyzed based on the model. Finally, the simulation results show that the strategy can effectively reduce the queuing delay in the block transmission process, reduce the occurrence of non-malicious bifurcation, and then improve the security of the system.