Employing an ECC-Based Hybrid Data Encryption Method to Improve Multitenancy Security in Cloud Computing

Abstract

Due to reduced key size, Elliptic Curve Cryptography (ECC) was utilized in this study for tenant authentication, data encryption, and decryption. The proposed ECC-based authentication technique efficiently defends against many related threats while allowing authorized users access to confidential data. The authors choose the exact and ideal values of elliptic curves to provide more secure data encryption by combining nature-inspired optimizations like the Moth Search Algorithm (MSA) with ECC. The DNS encryption and the ECC encryption technique are combined in the proposed encryption and decryption method. Analysis of the proposed method's security shows that it is effective against certain types of attacks, including denial-of-service attacks, spoofing attacks, reaction attacks, and simple both the selected ciphertext attack and text attacks.