IJERT-EMS
IJERT-EMS

Hardware Implementation of Modified AES Algorithm for Secure Images


Hardware Implementation of Modified AES Algorithm for Secure Images
Authors : Rabid E, Jithesh C P
Publication Date: 26-09-2017

Authors

Author(s):  Rabid E, Jithesh C P

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Volume. 6 - Issue. 09 , September - 2017

e-ISSN:   2278-0181

 DOI:  http://dx.doi.org/10.17577/IJERTV6IS090145

Abstract

In the era of internet the two main challenges of digital communication are security and storage space. Encryption and compression are the two techniques to address these challenges which are associated with multimedia communication over public network. In this work we implemented an efficient algorithm for encryption of image as a modification of Advanced Encryption Standard (AES) algorithm (MAES) along with an efficient algorithm for compression using Discrete Wavelet Transform (DWT) as modification of DWT (MDWT). The modification to DWT/IDWT is done by calculating a new computationally simple formula from the 9/7 lifting scheme, by which we can avoid usage of floating point arithmetic. The modification to AES is done by adding a key stream generator, such as (A5/1, W7), to the AES image encryption algorithm in order to increase the image security and in turn the encryption performance. Initially all the algorithms are modeled in Eclipse CDT (C/C++ Development Tool). Then hardware part is implemented in DSP starter kit DSK6713 using the integrated development environment (IDE) as Code Composer Studio(CCSv5) and results are verified.

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