A Reputation-based Approach using Consortium Blockchain for Cyber Threat Intelligence Sharing

07/13/2021
by   Zhang Xiaohui, et al.
0

The CTI (Cyber Threat Intelligence) sharing and exchange is an effective method to improve the responsiveness of the protection party. Blockchain technology enables sharing collaboration consortium to conduct a trusted CTI sharing and exchange without a trusted centralized institution. However, the distributed connectivity of the blockchain-based CTI sharing model proposed before exposes the systems into byzantine attacks, the compromised members of partner organizations will further decrease the accuracy and trust level of CTI by generating false reporting. To address the unbalance issues of performance in speed, scalability and security, this paper proposes a new blockchain-based CTI model, which combines consortium blockchain and distributed reputation management systems to achieve automated analysis and response of tactical threat intelligence. In addition, the novel consensus algorithm of consortium blockchain that is fit for CTI sharing and exchange introduced in this paper. The new consensus algorithm is called 'Proof-of Reputation' (PoR) consensus, which meets the requirements of transaction rate and makes the consensus in a creditable network environment through constructing a reputation model. Finally, the effectiveness and security performance of the proposed model and consensus algorithm is verified by experiments.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
03/24/2021

TRADE: TRusted Anonymous Data Exchange: Threat Sharing Using Blockchain Technology

Cyber attacks are becoming more frequent and sophisticated, introducing ...
research
07/15/2022

A Consensus Algorithm Based on Risk Assessment Model for Permissioned Blockchain

Blockchain technology enables stakeholders to conduct trusted data shari...
research
12/01/2021

A Blockchain-Enabled Incentivised Framework for Cyber Threat Intelligence Sharing in ICS

In recent years Industrial Control Systems (ICS) have been targeted incr...
research
08/04/2020

SISSLE in consensus-based Ripple: Some Improvements in Speed, Security, Last Mile Connectivity and Ease of Use

Cryptocurrencies are rapidly finding wide application in areas such as R...
research
05/08/2022

Challenges and Opportunities of Blockchain for Cyber Threat Intelligence Sharing

The emergence of the Internet of Things (IoT) technology has caused a po...
research
12/13/2015

Building and Measuring Privacy-Preserving Predictive Blacklists

Collaborative security initiatives are increasingly often advocated to i...
research
06/18/2019

Secure Architectures Implementing Trusted Coalitions for Blockchained Distributed Learning (TCLearn)

Distributed learning across a coalition of organizations allows the memb...

Please sign up or login with your details

Forgot password? Click here to reset