期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2013
卷号：4
期号：1
页码：61-65
出版社：TechScience Publications
摘要：The need of innovative encryption technique motivated us to develop this new image encryption algorithm named “New Image Encryption Technique based on Combination of Block Displacement and Block Cipher Technique” proposed by analyzing the principle of the image encryption algorithm. This will provide authorization of users, integrity and safety of images which is traveling over internet. Moreover, an image-based data requires more effort during encryption and decryption. This research introduces an image encryption algorithm which is the combination of “block displacement” and “Block Cipher. The original image was divided into blocks, which is then displaced horizontally and vertically and then resultant image will be divided into pixel blocks. This pixel block will be converted into binary value. Similarly key value will be selected. This key value will be converted in binary form. Finally key value will be XORed with Image value through proposed block based algorithm. Now finally encrypted image will be obtained. The Proposed Algorithm for encryption and decryption of an image using suitable user-defined key is developed. The cipher image generated by this method can vary in size with the original image due to image scaling to make 128 bits block at a time and is suitable for practical use in the secure transmission of confidential information over the Internet.
