Implementation of ChaCha20-Poly1305 and BLAKE3 Algorithms for Data Security of Reporters on the Satpol PP Complaint Portal
Keywords:
Data Security, Cryptography, ChaCha20-Poly1305, BLAKE3, Complaint System, Whistleblowing SystemAbstract
The Civil Service Police Unit (Satpol PP) requires active community participation in enforcing Local Regulations (Perda). However, the effectiveness of the complaint system is often hampered by public fears of identity leaks and the slow process of uploading digital evidence on low-end mobile devices. This study implements the ChaCha20-Poly1305 stream cipher encryption algorithm and the BLAKE3 hash function on a web-based complaint portal. ChaCha20-Poly1305 was chosen for its efficiency on devices without cryptographic hardware acceleration, while BLAKE3 was used to verify the integrity of digital evidence at a speed far exceeding that of SHA-256. The implementation results demonstrate that the system can secure whistleblower data using a client-side encryption mechanism with minimal computational overhead, thereby ensuring the confidentiality of the whistleblower's identity and the authenticity of the evidence, without compromising the user experience.
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References
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