Abstract:

Blockchain has become a hot issue in global technology and economy with its anti-tampering, transparency and decentralization. Blockchain infrastructure carries various blockchain applications on the top and connects network infrastructure on the bottom, and therefore its security is key to the high-quality development of blockchain. This paper surveys the effort of global governments, industries and standardization institutions in blockchain infrastructure security.Then it analyzes the security risks of blockchain infrastructure and ends up with the corresponding security evaluation indicators to evaluate the ability of blockchain infrastructure in tackling security risks.

Key words: Blockchain infrastructure, security risk, evaluation indicator