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SRE_BBC: A Self-Adaptive Security Enabled Requirements Engineering Approach for SLA Smart Contracts in
Irish Singh1, Seok-Won Lee1,2,3
1Department of Computer Engineering, Ajou University, Suwon 16499, Korea.
Sensors (Basel, Switzerland)
|May 28, 2022
Summary
This study introduces the RE_BBC framework to enhance blockchain-based cloud (BBC) security. It enables self-adaptive smart contracts (SC) to counter evolving cyber threats, improving system resilience and security management.
Area of Science:
- Computer Science
- Cybersecurity
- Software Engineering
Background:
- Blockchain-based cloud (BBC) systems face significant security vulnerabilities in smart contracts (SC).
- Current SC development lacks standardized lifecycle principles, leading to insecure models.
- Existing security mechanisms struggle to adapt to evolving adversary tactics.
Purpose of the Study:
- To propose a self-adaptive security RE_BBC framework for secure SC modeling in BBC systems.
- To integrate standard software development lifecycle principles with adaptive security capabilities.
- To enhance BBC systems' resilience against emerging cyber threats.
Main Methods:
- Utilized the MAPE-BBC adaptation loop for internal decision-making based on threat models, goal models, and SLA specifications.
- Implemented self-adaptive SC agents to identify vulnerabilities, threats, and enact precautionary measures.
- Validated the framework theoretically and empirically, using statistical tests (t-test, Mann-Whitney U test).
Main Results:
- The RE_BBC framework demonstrated superior performance compared to the SQUARE approach.
- Outperformed SQUARE in artifact quality, self-adaptive security evaluation, response time efficiency, and complexity.
- Showcased significant usefulness for Healthcare Data Management (HDM) systems.
Conclusions:
- The RE_BBC framework offers a robust solution for developing self-adaptive secure BBC systems.
- Developers can adapt existing SCs without complete reengineering, improving efficiency and security.
- The methodology provides a valuable approach for enhancing SC security in critical applications.
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