Certificateless Encryption In Public Cloud For Secure Data Transmission

A mediated certificate-less encryption that doesn’t involves pair up operations for safely sharing confidential information and data in public clouds. The approach of using Mediated certificate-less public key encryption (mCL PKE) provides the solution for the fair cryptography problem which is present in name based encryption and certificate annulment problem associated with public key cryptography. However, existing mCLPKE encryption schemes are either inadequate for the problem because it requires the use of very costly connection operations or they are vulnerable against the hackers attack to partial decrypt the data. To describe the functioning and data cofidentiality, in this paper, we have first given a mCL PKE scheme without involving pairing operations. We are using our mCL PKE scheme to obtain a practical solution to the problems of sharing critical and confidential information in cloud computing environment involving large number of clients. The cloud is used as a secure storage which is also having key generation station. In our system, the data owner encrypts his confidential data by using the cloud generated users’ public keys which is based on its access monitoring policies and uploads the encrypted data on the cloud. After successful authorization, the cloud partially decrypts the encrypted confidential data for the authorized users. The user now can fully access the encrypted code by utilizing his own private key given to him.