Optimalisasi Sistem Pemilu Melalui Implementasi E-Voting Berbasis Blockchain Dengan Keamanan Kriptografi AES-128

Authors

  • Usep Tatang Suryadi Universitas Mandiri
  • Ardi Permana Universitas Mandiri
  • Aa Zezen Zaenal Abidin Universitas Mandiri
  • Yuli Murdianingsih Universitas Mandiri
  • Carkiman Carkiman Universitas Mandiri
  • Muhammad Faizal Universitas Mandiri
https://doi.org/10.47561/jtik.v18i2.343
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Abstract


The general election (Pemilu) is a fundamental element of a democratic system. This study develops and evaluates a blockchain-based e-voting system implementing AES-128 encryption to ensure the confidentiality, integrity, and availability of voting data. The system integrates AES-128 symmetric encryption for data at-rest and SHA-256 hashing at the blockchain layer. Testing was conducted on a simulated dataset containing 100,000 voting records to measure processing time, storage efficiency, and cryptographic resilience against brute-force and data manipulation attacks. Experimental results show an average read/processing time of 24 seconds for 100,000 records under the test server configuration, and theoretical security analysis indicates that brute-forcing AES-128 is impractical with current computational capabilities. The contribution of this research lies in the integrated design of an e-voting system that combines data encryption and distributed storage models with verification mechanisms, thereby enhancing the transparency and auditability of the election process.



Keywords: AES-128, Blockchain, e-Voting, SHA-256, Data Security, Node.js.

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Published

2025-10-19

How to Cite

[1]
U. T. Suryadi, A. Permana, A. Z. Z. Abidin, Y. Murdianingsih, C. Carkiman, and M. Faizal, “Optimalisasi Sistem Pemilu Melalui Implementasi E-Voting Berbasis Blockchain Dengan Keamanan Kriptografi AES-128”, JTIK, vol. 18, no. 2, pp. 126-135, Oct. 2025.

Issue

Vol. 18 No. 2 (2025): Oktober

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Articles

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Copyright (c) 2025 Usep Tatang Suryadi, Ardi Permana , Aa Zezen Zaenal Abidin, Yuli Murdianingsih, Carkiman Carkiman

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This work is licensed under a Creative Commons Attribution 4.0 International License.