Image Encryption Decryption Using Simple and Modified Version of AES

Abstract

In today’s environment security becomes an important issue for both storage and transmission of multimedia data. Hence there is a need to secure the data from unauthorized access and to thwart the attack by the intruder in between transmission. Images play a great role for multimedia data. It depicts more information by visualization as compared to text data. The application of images in military communication, medical sciences, etc., requires high protection of image data only between the end users. Encryption is the process by which image is unreadable or in determined easily. AES (Advanced Encryption Standard) is an algorithm which is used to encrypt any multimedia data and is used vastly because of its high security. This paper proposes to use simple and simplified steps of the AES algorithm for image encryption. The proposed algorithm provides high randomness in image data for providing high security in minimum number of operations. Java has been used for the implementation.