A Novel Image Encryption Technique Using Arnold Transform and Asymmetric RSA Algorithm

Abstract

Today, people all over the world want to exchange information, but they are concerned about security aspects while sharing information. The encryption and decryption are the one of the best methods to transfer the information securely. In this process, two types of algorithms are used symmetric and asymmetric algorithm. In the symmetric algorithm, we used the same key to encrypt and decrypt the information and in asymmetric algorithm used the pair of key to encrypt and decrypt the information, one is used for encryption, and another is used for decryption. Hence, asymmetric algorithms are more secured. In the asymmetric algorithm, the RSA is the one of the most popular algorithms. In this paper, present a hybrid technique of image encryption using the Arnold’s transformation and RSA algorithm. In this proposed methodology, first scrambles the digital image using Arnold’s transformation after that encrypts that digital image using an asymmetric RSA algorithm. The proposed method is safer, and the result of the resulting encrypted image is improved and safer as shown in this paper.