ENHANCING THE SECURITY OF USER DATA STORED ON CLOUD

Abstract

Data protection is now more important than ever to protect against hacking due to the Internet's explosive development in text transfer. Many encryption and decryption algorithms are used to offer a high level of security, including DH (Diffie Hellman), RSA ( Rivest Shamir-Adleman), and AES (Advanced Encryption Standard).However, these algorithms frequently call for large key sizes, which can make implementation difficult. In this article, a hybrid technique for data encryption with RSA and AES with LZW (Lempel-Ziv-Welch) compression technique is proposed. This thesis mainly concentrates on evaluating the effectiveness of text data encryption and decryption methods utilizing the AES and RSA algorithms, LZW compression, MEGA cloud storage and Cyber Ghost VPN for safe storage and internet access. The paper highlights how these methods increase algorithm strength, key generation, and decryption speed to guarantee the security and privacy of sensitive user data. The goal of this research is to provide a secure data transport solution that overcomes the shortcomings of existing encryption techniques. The difficulty of key size in encryption methods, which might provide employment issues, is the issue that this work attempts to solve. The suggested method seeks to offer a quick and reliable way to encrypt data using the strength of RSA and AES Cryptography together. The study's findings show that the suggested method is quick and secure. Implementation and performance analysis using Python 3.11 (64-bit) shows the efficacy of the suggested strategy. For implementation and performance analysis we use "Design of Technology Integrated Shredder Machine" project of data set size 4,616,263 bytes before compression. After compression, the file size reduced to 4,475,411 bytes. based on results,the proposed algorithm improve the original RSA key generation time is 3.336312 second or 100.00%,encryption time of AES by RSA 0.015691 second or 0.01%,the decryption time of RSA 0.015624 second or 0.01%,the encryption time of compressed data by AES 0.000011 second or 0.00% and the decryption time of compressed data by AES 0.0000012 second or 0.01% but when we encrypt the by AES alone ,the encryption time is 0.07812s or 47.75% and the decryption time is 0.08546s or 52.25 % as the result of this performance investigation, the proposed or AES and RSA hybrid algorithm is very fast and secure than the individual once.