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Redactable Blockchain Trust Scheme Based on Reputation Consensus for MEC.

YongLi Tang1, Shuai Wu1, XiaoJun Wang2

  • 1School of Computer Science and Technology, Henan Polytechnic University, Jiaozuo 454003, China.

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Summary
This summary is machine-generated.

This study introduces a new blockchain trust scheme for mobile edge computing (MEC). It enables secure modification and deletion of blockchain data using reputation consensus and cryptography, addressing immutability challenges.

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Area of Science:

  • Computer Science
  • Cryptography
  • Distributed Systems

Background:

  • Blockchain technology offers trust and efficiency in mobile edge computing (MEC) but faces challenges with immutable smart contracts containing errors.
  • The inability to modify or delete erroneous data on the blockchain hinders practical applications in dynamic environments like MEC.

Purpose of the Study:

  • To propose a novel redactable blockchain trust scheme for MEC systems.
  • To address the immutability issue of blockchain data, allowing for the modification or deletion of erroneous or invalid entries.

Main Methods:

  • Developed a scheme utilizing reputation consensus, factoring in user currency age and behavior.
  • Implemented a one-way trapdoor function based on the SM2 asymmetric cryptography algorithm.
  • Introduced a new Merkle tree structure to ensure the legitimacy of data modifications and deletions through verification and voting.

Main Results:

  • The proposed scheme allows for modification or deletion without altering the existing blockchain structure or block linkages.
  • Consensus verification successfully passed post-modification or deletion operations.
  • Simulation experiments validated the feasibility and effectiveness of the redactable blockchain trust scheme.

Conclusions:

  • The developed redactable blockchain trust scheme effectively resolves the immutability challenge in MEC.
  • The scheme ensures data integrity and legitimacy while enabling necessary corrections through a consensus-driven process.
  • This approach enhances the practicality and reliability of blockchain in mobile edge computing environments.