Secure Hybrid Encrypted File Storage System

International Journal of Research in Engineering & Science ISSN:(P) 2572-4274 (O) 2572-4304 Available online on http://rspublication.com/IJRES/IJRE.html volume 9 Number 6, 2025 DOI: 10.5281/zenodo.17845988 Original Article ©2025 RS Publication, rspublication[email protected] 143 Secure Hybrid Encrypted File Storage System Shivanna K Dayananda Sagar Academy of Technology and Management, Bangalore. Amruta Talawar Dayananda Sagar Academy of Technology and Management , Banglore . Dhanamma K O Dayanada Sagar Academy of Technology and Management, Banglore. Bheemamma G Dayananda Sagar Academy of Technology and Management, Banglore. Ankita Dayananda Sagar Academy of Technology and Management, Banglore International Journal of Research in Engineering & Science Available online on http://rspublication.com/IJRES/IJRE.html ISSN:(P) 2572-4274 (O) 2572-4304 ARTICLE INFO ABSTRACT ©2025 RS Publication Paper ID: IJRES69343952BDD6F Published: 2025-12-07 DOI: https://dx.doi.org /10.5281/zenodo.17 845988 Page No: 143-147 Data protection has become increasingly essential as digital platforms faces rising threats from cyberattacks and unauthorized data exposure. This study introduces a Secure Hybrid Encrypted File Storage System that integrates multiple cryptographic layers to provide strong confidentiality, integrity, and optimized storage for sensitive files. The architecture employs AES-256 for fast symmetric file encryption, RSA-2048 for asymmetric protection and secure transmission of the AES key, and differential attacks. To further optimize storage, a lossless compression stage is executed after encryption , enabling reduced file size and improved transfer efficiency. The system incorporates essential security components such as metadata processing, SHA-256 based integrity verification, OTP-secured decryption access, and a dashboard interface for managing encrypted files. A controlled preview feature included to display encryption details without exposing sensitive keys or internal cryptographic values. Experimental evaluation confirms that the combined AES-RSA-Chaos approach strengthens overall data security while sustaining practical performance suitable for realworld environments. The proposed hybrid framework is well-suited for secure cloud storage, protected file-sharing platforms, academic projects, and enterprise-level data confidentiality solutions. Keywords: AES, RSA, COMPRESSION, CHAOS, SYMMETRIC AND ASYMATRIC ENCRYPTION Cite This Paper: Amruta Talawar, Ankita, Dhanamma K O, Bheemamma G and Dr Shivanna K (2025). "Secure Hybrid Encrypted File Storage System". INTERNATIONAL JOURNAL OF RESEARCH IN ENGINEERING & SCIENCE (IJRES), vol. 9, no. 6, 2025, pp. 143-147. DOI: https://dx.doi.org/10.5281/zenodo.17845988 International Journal of Research in Engineering & Science ISSN:(P) 2572-4274 (O) 2572-4304 Available online on http://rspublication.com/IJRES/IJRE.html volume 9 Number 6, 2025 DOI: 10.5281/zenodo.17845988 Original Article ©2025 RS Publication, rspublication[email protected] 144 Introduction: In today’s data-driven world, the volume of digital information being created, stored, and exchanged continues to grow at a rapid pace. This surge in data activity has also increased the exposure of sensitive files such as documents, images, academic records, and confidential organizational information to cyber-threats. When such files are stored on cloud platforms or shared across networks, they become vulnerable to unauthorized access, manipulation, and security breaches. Conventional singlealgorithm encryption methods are no longer sufficient to counter sophisticated attack strategies, prompting the needs for more resilient hybrid encryption system that combine the capabilities of multiple cryptographic techniques. Hybrid cryptography merges symmetric and asymmetric encryption to provide both efficiency and robust security. Symmetric algorithms like AES256 enable high-speed protection of lage files, whereas asymmetric schemes such as RSA-2048 ensures security key distribution and prevent key exposure. Methodology: As organizations and individuals increasingly depend on cloud services and online communication, sensitive files including documents, multimedia content, academic records , and confidential operational data are frequently exposed to security threats. These files face risk such as unauthorized access, manipulation, and cyberintrusions. Traditional encryption methods that rely on a single algorithm are no longer adequate to withstand modern attack techniques, which motivates the adoption of advanced hybrid cryptographic models that combines the strengths of multiple security mechanisms. Hybrid cryptography effectively integrates symmetric and asymmetric encryption to achieve both computational efficiency and strengthened protection. Symmetric encryption schemes such as AES-256 enable rapid processing of large files, while asymmetric algorithms like RSA-2048 provide secure key exchange and prevent key leakage. However , due to increasing sophistication in attacks ranging from brute-force approaches to differential and statistical analysis additional unpredictability is required within the encryption pipeline. Existing System: Although AES provides strong protection and excellent performance for large files, it still requires secure key sharing , which introduces risk during transmission. RSA, in contrast, is ideal for protecting keys but is not efficient enough to encrypt large data volumes due to its heavy computational requirements. When a system relies solely on one of these methods, it either becomes slow or fails to protect the encryption keys effectively. Many traditional storage platforms also offer only basic password-based protection or one-layer encryption without additional integrity checks or multi-level security. Another major drawback in existing solutions is the absence of advanced mechanisms for validating data integrity, verifying user identity, or safeguarding metadata. Typical systems do not incorporate features like chaos-based randomness, hybrid encryption pipelines, or zip -based compression. Most existing platforms also do not include multifactor authentication, which means they depend only on passwords for security. If a password is weak or gets leaked, attackers can easily break in, these weakness give hackers opportunities to use methods like brute-force attacks or key interception to access confidential files. Proposed system: The system we developed uses several layers of depending on single encryption method. It brings together all features to keep files safe and easy to store. So, even if someone manages to steal the encrypted data, they still cannot unlock it without the protected key. International Journal of Research in Engineering & Science ISSN:(P) 2572-4274 (O) 2572-4304 Available online on http://rspublication.com/IJRES/IJRE.html volume 9 Number 6, 2025 DOI: 10.5281/zenodo.17845988 Original Article ©2025 RS Publication, rspublication[email protected] 145 A secure authentication mechanism and userfriendly interface also integrated, allowing users to upload, encrypt, decrypt and manage their files with ease. Every file processed by the system passes through several layers: compression->AES compression ->RSA wrapping of the AES key-> integrity hashing. The resulting encrypted package includes supporting metadata such as time of operation, user details, and hash values for later varification. During decryption the RSA private key first recovers the AES key, which is then used to reconstruct the original file. This layered hybrid model ensures strong protection against unauthorized access, tampering, and keycompromize threats. Block diagram: Decryption module 1. Consumer Authentication Handles relaxed login and registration. Guarantees best leal consumers can get right of entry to encryption and garage capabilities the usage of hashed passwords and guarded periods. 2. Report add and Pre-Processing Accepts person documents of any layout , extracts metadata, and converts them into binary shape for encryption. Validates report protection earlier than processing. 3. AES Encryption Encrypts the report the usage of AES-256 with a randomly generated key and IV. Produces speedly, at ease cyphertext appropriate for huge statistics. 4. RSA Key Wrapping Encrypts(wraps) the AES key the use of the person’s RSA-2048 public key, making sure at ease safety in the course of garage and switch. Results: The secure hybrid encrypted file storage system was fully implemented using a multi-layered combination of AES, RSA, Chaos-based key enhancement, and ZIP compression. The system provides a reliable and confidential platform for managing sensitive files, enabling users to upload, encrypt, store, download, and decrypt data through an intuitive interface. International Journal of Research in Engineering & Science ISSN:(P) 2572-4274 (O) 2572-4304 Available online on http://rspublication.com/IJRES/IJRE.html volume 9 Number 6, 2025 DOI: 10.5281/zenodo.17845988 Original Article ©2025 RS Publication, rspublication[email protected] 146 Key Outcomes 1. Effective Hybrid Encryption The integrated AES-RSA model performed as expected: AES handled fast encryption for large files, while RSA securely encapsulated the AES session key. 2. User-Friendly Interface The dashboard displayed essential file information including original size, encrypted size, and compressed size providing clarity and ease of file management. Upload and download operations were smooth error free. 3. System Testing Extensive testing across various file types (documents, images, videos, PDFs, etc.) confirmed that uploading, encrypting, storing, downloading, and decrypting all worked consistently and without failure. Discussion : The proposed Secure Hybrid Encrypted report garage system efficiently demonstrates how combining more than one cryptographic mechanisms can beautify universal safety, data consistency, and device dependability. AES256 affords rapid and efficient encryption for excessivevolume files, whilst RSA-2048 is used to wrap and safeguard the AES consultation key, making sure that the important thing stays included even supposing adversary profits get right of entry to encrypted information. This twin-layer design efficaciously removes the weaknesses that get up while AES or RSA is used independently. Incorporating Chaos-based totally perturbation similarity strengthens the security model by introducing high randomness in key and IV generation. The chaotic series prevents attackers from identifying styles or correlations in encrypted outputs, thereby warding off predictability that might be exploited in brute-pressure or statistical assaults. Even though compressed effects after encryption continue to be minimum due to ciphertext performing as random statistics the compression level still assists in structural compony and, in few instances, reduces exact report overhead. At some stage in sensible evaluation, the machine operated, reliably and brought stable performance. Authentication checkpoints which includes the login module and OTP-totally decryption affirmation efficaciously blocked unauthorized get right of entry to attempts. The dashboard representation successfully displayed record attributes, cryptographic metadata, SHA-256 hash values, and activity logs, verifying that no changes occurred during garage or transmission. collectively the layered additives AES, RSA, Chaos common sense, hashing, metadata tracking, and OTP validation demonstrate that. Screenshots: International Journal of Research in Engineering & Science ISSN:(P) 2572-4274 (O) 2572-4304 Available online on http://rspublication.com/IJRES/IJRE.html volume 9 Number 6, 2025 DOI: 10.5281/zenodo.17845988 Original Article ©2025 RS Publication, rspublication[email protected] 147 Conclusion: The Secure Hybrid Encrypted report Storage gadget evolved on this challenge demonstrates how the mixing of couple of cryptographic mechanisms can drastically decorates the confidentiality, integrity, and resilience of virtual statistics. AES ensures highspeed encryption for huge files, whilst RSA presents a relaxed method for protective and transmitting the AEs consultation key. The usage of chaotic logistic functions introduces an further layer of unpredictability to the key era method, making the system specifically proof against statistical evaluation, bruteforce tries, and pattern-based assaults that commonly threaten linear encryption strategies. further we used the features together with SHA-256 hashing, metadata logging, OTP-based totally decryption authentication, and ZIPbased totally compression ensures each structural integrity and operational efficiency. Reference:  S. Rath, B. Priyadarshini, S. B., D. K. Patel, P. K. Sahu, N. Jagadev, M. Panda, N. 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