Efficient Determent of Sybil Attacks in Blockchain
M Gurupriya, J Y Dharshan, K C Rohit, Sridhar SK · 2025
Blockchain is rapidly growing in recent era with respect to digital transactions and supply chain. Due to lack of identity, blockchain are prone to more vulnerable attacks. The private and public blockchain is adversely affected by fictitious nodes which creates fake identities and get circulated in the network. These fictitious nodes act as a genuine node and create superfluous influence on the network. There are various attacks in blockchain namely, DDOS attacks,51% attacks, Phishing attacks and Ransomware attacks etc., Monitoring a blockchain is a crucial process to ensure the network's health, security, and performance. Continuous monitoring the blockchain helps detect anomalies, potential attacks, or faults early on and allows for prompt intervention. The proposed solution keeps an eye on the node's behavior and route the blocks to other node. The malicious nodes are identified and removed from table, thus preventing sybil attack. The proposed system achieved better throughput.