Author: Zen and the Art of Computer Programming
1 Introduction
With the vigorous development of virtual currency platforms such as BT currency and Ethereum, more and more people have begun to pay attention to the huge potential risks brought about by their "decentralization" attributes, and have conducted more in-depth research and analysis on blockchain technology. Practice has also spawned many related research fields. Among them, how to ensure the security of the blockchain network is an important research topic in the blockchain field.
Through the analysis of commonly used blockchain network security protocols, algorithms and security vulnerabilities, the author compiled a comprehensive and systematic blockchain network security technology summary based on his own research experience and related knowledge, and explained some preventive measures, and Future research directions and challenges.
It is hoped that through the writing of this article, we can have more knowledge and understanding of blockchain network security, and improve the protection ability and response of blockchain network security.
2. Background introduction
What is Blockchain Cyber Security
Blockchain is a database composed of distributed ledgers, and each node has the right to confirm, record and verify transactions. Due to the opacity, immutability, anonymity and shared interests of information, blockchain technology has very large potential risks. The blockchain network security is to ensure the normal operation of the blockchain network and prevent any illegal behavior or attack, so as to ensure the security of data, transactions and contracts of all users in the blockchain network.
Why do blockchain network security protection?
For a blockchain network composed of decentralized multi-nodes, ensuring its safe operation means that every node in the network should take security measures. Including the following aspects:
- Identity verification: ensure that each node is a real identity owner, not a fake fake account;
- Data transmission encryption: prevent data from being eavesdropped, tampered with and replayed;
- Vulnerability scanning and repair: discover and remedy known vulnerabilities as early as possible to avoid threats to the network;
- Browser Plug-ins: Targeting Malicious Web