Enhanced CP-ABE with RSA for Secure and Revocable Data Transmission of Big Data in Cloud

Abstract

Cloud computing is a diversified domain and is a huge phenomenon that is a widely preferred technology in the current times. The users are unable to utilize cloud computing to the maximum, due to challenges in the security issues. To store sensitive or useful data in an insecure region is not an option for the user. Various techniques have been developed to provide security for the big data in the cloud. During voluminous data transmissions, it will not maintain the end-to-end security and the prevailing approaches do not solve the key complexities and not provides security for the keys. The Attribute-Based Encryption (ABE) can deliver a mechanism of fine-grained control by providing one-to-many encryption. But, the revocable process of accessing the privilege of encrypted data of users from cloud servers is challenging. Further, the complex process of ABE takes up huge computational time hence it becomes a burden for system users. To solve such issues, the proposed Enhanced Cipher-text Policy-based Attribute Encryption (CP-ABE) protect, broadcast and control the access of information, especially over the cloud server. In the proposed Enhanced CP-ABE method, proxy is added to securely transmit the key to the users. The Rivest Shamir Adleman (RSA) Algorithm provides security to outsourced big data in the cloud that enables public key encryption secure data when it is being sent over an insecure network such as the internet. The proposed Enhanced CP-ABE with RSA method effectively identifies the users who decrypt the ciphertexts during decryption. The experimental results show that the proposed Enhanced CP-ABE with RSA Scheme method acquires lesser encryption and decryption times of 1638 ms and 1102 ms respectively for a 256-bit key length. Whereas, the existing methods acquire encryption and decryption times of 1721ms and 1134 ms respectively.

Enhancement of Big Data Security in Cloud Computing Using RSA Algorithm

“…Using the hybrid system, the user will utilize their private key to obtain the decrypted data after the server has presented the encrypted data to the decryption process. In [12] presented an improved CP-ABE with an RSA algorithm to secure outsourced big data stored on cloud servers and to restrict access to, disseminate, and safeguard information. The five stages of the proposed model's activities setup, user key generation, data encryption & decryption, and revocation perform actions that successfully identify the users who decipher the ciphertexts during decryption.…”