• Diksha Mahesh Gawand

The increasing use of digital files has created a need for secure storage mechanisms that provide both confidentiality and integrity protection. This research presents a Hybrid Cryptographic File System with Automated Integrity Verification for protecting sensitive files from unauthorized access and undetected modification. The proposed system supports multiple symmetric encryption algorithms, including AES-256-GCM, ChaCha20-Poly1305, Camellia, and other cryptographic standards, allowing users to select an appropriate encryption technique according to their security requirements. The system performs file analysis before encryption and securely stores the encrypted file along with the required metadata. To ensure file integrity, cryptographic hash values are generated for protected files and periodically compared with newly calculated values. The system performs automated background monitoring to detect unauthorized modifications or tampering. When a mismatch is detected, the system records the event and provides an appropriate alert for further investigation. The proposed system is implemented using Python and Streamlit, providing a simple interface for encryption, decryption, file management, and integrity verification. The approach combines multi-algorithm encryption with automated integrity monitoring to provide a practical solution for secure file storage and tamper detection.

Hybrid Cryptography, File Security, AES-256-GCM, ChaCha20-Poly1305, Camellia, File Encryption, SHA-256, Integrity Verification, Tamper Detection, Automated Monitoring, Key Management, Cybersecurity

"A MULTI-ALGORITHM HYBRID CRYPTOGRAPHIC FILE SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 9, page no.c805-c811, September-2026, Available :http://www.jetir.org/papers/JETIR2609288.pdf

"A MULTI-ALGORITHM HYBRID CRYPTOGRAPHIC FILE SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 9, page no. ppc805-c811, September-2026, Available at : http://www.jetir.org/papers/JETIR2609288.pdf