Machine Learning Approach for Cloud Data Analytics in IoT

7Issues and Challenges of Classical Cryptography in Cloud Computing

Amrutanshu Panigrahi^1*, Ajit Kumar Nayak² and Rourab Paul¹

¹Department of CSE, I.T.E.R., S’O’A University, Bhubaneswar, India

²Department of CS & IT, I.T.E.R., S’O’A University, Bhubaneswar, India

Abstract

Cloud computing nowadays draws the attention of different users as it gives scalable and on-demand access to the resource. As a large number of users can access various cloud resources simultaneously, there will be a threat to every user present in the cloud environment. With the advent of cloud computing, security plays the primary concern. The cryptography plays a key role in maintaining the basic property such as confidentiality, integrity, and availability (CIA) of the information shared between different users. Traditional cryptography provides a secure exchange of information between the users. The data can be shared by using some key which will be used to encrypt the data at the sender side and to decrypt the data at the receiver side. In traditional cryptography, any operation to be performed in the cloud data need a decryption process that exposes confidential data in the cloud platform. These issues are addressed by the homomorphic encryption (HE) technique. This technique enables the cloud user to operate such as update and sort on the encrypted data itself. The partial HE (PHE) and full HE (FHE) are two available variants of HE to overcome the issues of the traditional cryptography system. This ...