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SRE_BBC: A Self-Adaptive Security Enabled Requirements Engineering Approach for SLA Smart Contracts in

Irish Singh¹, Seok-Won Lee^1,2,3

¹Department of Computer Engineering, Ajou University, Suwon 16499, Korea.

Sensors (Basel, Switzerland)

|May 28, 2022

Summary

This summary is machine-generated.

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.

Keywords:

SLA attacks blockchain cloud goal model healthcare security self-adaptation smart contract threat model vulnerabilities

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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.