A framework for secure cryptographic key management systems

Cloud computing era helping organizations to compute and outsource humongous volume of data in flexible and cost effective manner. The trend is permitting myriad of users to share data, services and resources on cloud environment. With the growing adoption of cloud, it´s necessary to ensure the confidentiality of data is maintained by efficient key management to avoid unauthorized access, as large quantum of sensitive data is shared among a dynamic group of members. In this paper, a novel framework is proposed for efficient key management in cloud for multi-owner. Our system utilized the Shamir´s secret sharing scheme for Key establishment along with dynamic identity. The evaluation result shows that the proposed mechanism works more efficiently than other systems.