Implementation of a secure multi-cloud storage framework with next-generation cryptosystems and split-protocol

Cloud storage is a popular method of storing and sharing data. Numerous cloud service providers offer storage as a service, while others focus on sharing as a service. Many service providers focus their services on collaboration and integration with multiple tools to help with inline commenting and workflow. In recent days, working from home and new normal has attracted secure sharing services for strict access control. Data is new gold there for having the correct type of access control that satisfies the organization’s existing policies is a crucial feature. Also, the demand for extensive data sharing is increasing day by day. December 2020’s cyber-attack on SolarWinds & FireEye is the primary security service provider in the U.S. and worldwide. Organizations are more concerned about their data at rest or in motion. To meet current industry needs, we have demonstrated a secure file sharing framework with a three-prong security strategy by employing next-generation cryptography coupled with proxy re-encryption and splitting data at bit level on multiple heterogeneous clouds. This paper aims to present the idea of split-protocol as a protection technique for security, integrity, and availability of data stored on the public cloud. We have used three encryption techniques for this experiment, namely AES 128-, AES, 256, and RLP, and compared their overheads and timings with different file sizes and types. Implementation and results indicate the feasibility of the proposed architecture without client involvement.