Novel Idea of Unique Key Generation and Distribution Using Threshold Science to Enhance Cloud Security

Abstract

In cloud environment, the owner may store insightful data of their organization in cloud storage. The cloud service provider should guarantee integrity, security, access control and confidentiality about the stored data at cloud. Most of the organizations pay no attention to the insider attack because it is harder to detect and mitigate. This is a major emerging problem in organizations. In cryptographic systems, an important element is threshold cryptography which secures the keys. Rather storing it at a single server, it is divided and distributed among the different entities of the system. As cloud security has still open challenges toward file sharing and data protection, this paper aims to design a new automated keyword formation mechanism using various techniques of natural language processing. The secret key is defined by this keyword. This secret key is then distributed among the users. The designed mechanism ensures the uniqueness of the key share and reconstruction process of secret using appropriate threshold value so that the authorized user can only decrypt and access the file.