IJMTES – COMPRESSING AES ENCRYPTED IMAGES WITH HWT TECHNIQUE

Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : R Ravirajan | P Thirugnanam  unnamed

Volume 03 Issue 05 2016

ISSN no:  2348-3121

Page no: 23-28

Abstract – The issue of security is very important in many departments nowadays especially in medical field. Advanced Encryption Standard(AES) is one of the most secure algorithm and it is used widely in many applications. Hence to aid security for transmission of secret information (medical images) by AES algorithm is used in the proposed method. In previous methods, encryption of images using AES algorithm was not compatible with compression. In this paper, the method of encrypting the image using AES and then compressing the encrypted image using Haar wavelet transform to utilize the channel resources efficiently is introduced. AES has been already accepted as a standard algorithm. Haar wavelet is one of the simplest of all wavelets and used for efficient compression. The proposed method assures the strong security of information and recovers the image without any loss of image quality.

Keywords— Image encryption and decryption; AES algorithm; Haar wavelet transform; Image recovery; Entropy 

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