Preventing DDoS Attack in Blockchain System Using Dynamic Transaction Limit Volume
Wonwoo Jung, Sooyong Park · International Journal of Control and Automation · 2017
Blockchain is a trusting technology that allows nodes participating to share data reliably without a central management system.Blockchain uses the p2p system called 'flooding' as the data transfer method, where the data are defined as a transaction and a block.To prevent unnecessary propagation in such a transmission scheme, all nodes in the block chain check 'memory pool'.In current blockchain, there is no transaction creation rate limit.Since there is no transaction creation rate limit, DDoS attacker can easily attack blockchain using transaction creation.This DDoS attack called 'Overflood attack'.In this paper, to prevent 'Overflood attack', we propose a method to dynamically limit the maximum amount of creation transaction using Least Mean Square.