区块链的安全风险评估模型

随着区块链技术在社会经济领域的应用不断扩大,区块链的安全问题受到越来越多的关注.本文提出了一种新的区块链安全风险评估方法,分别从技术架构和算力两方面量化区块链的安全风险.我们首先根据区块链技术体系架构建立了区块链可信计算基(Blockchain Trusted Computing Base,BTCB),进而设计了一种结...

Security Risk Assessment Model of Blockchain

With the expansion of the application of blockchain technology in the socio-economic fields,increasing attention has been paid to the security of blockchain.This paper proposes a security risk assessment method for blockchain,which quantifies the security risk of blockchain from the aspects of technical architecture and hash rate.At first,we build the Blockchain Trusted Computing Base (BTCB) model based on the technology architecture.Then,we design a sensitivity analysis method combined the AHP and paired comparison to assign security weights to each security risk factor.Finally,we construct a security risk assessment model.In the experimental part,we use this model to score 15 common public-chain blockchain projects,and conducte comparative analysis with the evaluation data of four blockchain rating agencies with high market recognition.The experiment results verify the feasibility of this method.