Published: 2025-12-01
Super Encryption Cryptography for Land Certificate Data Security: A Case Study of the Jayapura City Land Agency
DOI: 10.35870/ijsecs.v5i3.5652
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Abstract
This study introduces a lightweight, reproducible super-encryption framework designed to protect land certificate owner data at the Jayapura City Land Office. The system combines two classical algorithms—Rail Fence Cipher for transposition and Vigenère Cipher for substitution—through a structured, layered encryption pipeline implemented in Python. Testing was conducted on 50 simulated certificate owner names (10–15 characters each) under controlled conditions (Intel i5, 8 GB RAM, Windows 10). Black-box validation demonstrated 100% decryption accuracy with sub-10 ms total processing time per record. Robustness assessments revealed an average Shannon entropy increase of 41.6% and an avalanche rate of 47.8%, indicating enhanced ciphertext randomness. Results confirm that strategically layering classical ciphers delivers reliable confidentiality and integrity for small-scale, non-transactional datasets characteristic of land administration offices operating under resource constraints. The research offers a transparent, replicable model for securing identity fields and demonstrates the practical viability of super-encryption as a computationally efficient cryptographic solution for local government digital systems
Keywords
Cryptography ; Super Encryption ; Data Security ; Rail Fence Cipher ; Vigenère Cipher ; Land Administration
Article Information
This article has been peer-reviewed and published in the International Journal Software Engineering and Computer Science (IJSECS). The content is available under the terms of the Creative Commons Attribution 4.0 International License.
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Issue: Vol. 5 No. 3 (2025)
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Section: Articles
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Published: %750 %e, %2025
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License: CC BY 4.0
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Copyright: © 2025 Authors
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DOI: 10.35870/ijsecs.v5i3.5652
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Ray Setiawan Panyuwa
Department of Computer Science, Faculty of Information Technology, Universitas Kristen Satya Wacana, Salatiga City, Central Java Province, Indonesia
Suharyadi
Department of Computer Science, Faculty of Information Technology, Universitas Kristen Satya Wacana, Salatiga City, Central Java Province, Indonesia
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