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Efficient authentication system based on blockchain for E-government.

Liang Liu¹, Kazumasa Omote¹

¹University of Tsukuba, Tsukuba, Japan.

|December 5, 2025

Summary

This summary is machine-generated.

This study introduces a secure e-government authentication system using electronic identity (eID) cards and blockchain smart contracts. The innovative approach enhances privacy and reduces errors in smart city digital services.

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Area of Science:

Computer Science
Information Security
Public Administration

Background:

Smart city development drives e-government adoption, increasing reliance on Information and Communication Technology (ICT).
Existing e-government systems struggle with data redundancy and privacy vulnerabilities during user authentication.
Need for robust, privacy-preserving authentication mechanisms in digital governance.

Purpose of the Study:

To propose an innovative authentication scheme for e-government systems.
To enhance security and privacy in smart city digital services.
To address data redundancy and privacy breach challenges in current e-government platforms.

Main Methods:

Development of an authentication scheme integrating electronic identity (eID) cards and blockchain smart contracts.
Utilizing digital signatures generated by eID cards for user authentication.
Implementing smart contracts for automated verification of signature validity and certificate status.

Main Results:

The proposed scheme effectively prevents privacy breaches by storing only government public keys on the blockchain.
Automated authentication reduces manual intervention and minimizes human error.
The system demonstrates resistance to common cyberattacks and significantly lowers privacy leakage risks.

Conclusions:

The blockchain-based eID authentication scheme offers a secure and efficient solution for e-government systems.
This approach enhances the practical security and privacy of digital public services in smart cities.
The unified smart contract interface ensures broad applicability across diverse e-government scenarios.