Call For Paper Volume:4 Issue:8 Aug'2017 |

A Certificateless Encryption for Data Sharing Securely in Public Clouds

Publication Date : 02/04/2016



Author(s) :

Sonawane Shwetambari P. , Prof P.V.Waje , Sangale Pallavi M. , Sawal Pranali P. , Shinde Priyanka P.


Volume/Issue :
Volume 3
,
Issue 3
(04 - 2016)



Abstract :

Abstract-- For securely sharing sensitive information in public clouds, we propose a mediated certificateless encryption scheme without pairing operations. The problem related to key escrow in IBE and certificate expiration problem in public key cryptography, mediated certificateless public key encryption solves. Due to the use of costly pairing operations or weakness against partial decryption attacks, however, existing mCL-PKE schemes are either inefficient. We first propose a mCL-PKE scheme without using pairing operations, in order to address the performance and security issues. Solution to the problem of sharing sensitive information in public clouds, we apply our mCL-PKE scheme to construct a practical. A secure storage as well as a key generation center, the cloud is employed. Public keys based on its access control policies and upload the encrypted data to the cloud; the data owner encrypts the sensitive data using the cloud generated users. The encrypted data for the users, upon successful authorization, the cloud partially decrypts. The partially decrypted data using their private keys, the users subsequently fully decrypt. Because the cloud cannot fully decrypt the information, the confidentiality of the content and the keys is preserved with respect to the cloud. To improve the efficiency of encryption at the data owner, we also propose an extension to the above approach. Evaluates its security and performance, we implement our mCL-PKE scheme and the overall cloud based system. Results show that schemes used are practical and efficient.


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A Certificateless Encryption for Data Sharing Securely in Public Clouds

March 11, 2016