Secure Private Data Storage and File Sharing Using Homomorphic and Hybrid Hash-Based Cryptographic Technique in Cloud

Data is a crucial asset in any business, and for some businesses, it ranks among the most valuable. More and more businesses want to keep their data on the cloud and securely and efficiently distribute it among their authorized staff. Data duplication across numerous local devices is one factor in the enormous amount of data that is expanding daily. Both databases and data are made available on a large scale through the Cloud. Storage infrastructure is employed in many different locations. Security concerns have prevented a broad adoption of the cloud computing architecture. This is because of the extensive use of the internet throughout the world; advancements in cryptography have become vital in addressing some of these security issues. Two-phase algorithms have been introduced for a protocol for safe data storage. The hybrid technique that has been presented seeks to boost the power of cloud storage by decreasing computation time and ciphertext size. In this project, users may store all sorts of files, establish an effective directory structure, and navigate it in a way that is remarkably comparable to any conventional Operating system, all in a cloud area. The system also demonstrates a method for secure sharing of personal digital content. Users may transfer files via various methods, including links and QR codes, all inside an easy-to-use single-page Angular UI, with enhanced security provided by AWS services. Our solution can offer some extra features like making lightweight sticky notes and sharing folders utilising a Nodejs server and a MongoDB in addition to these basic functions.