Random Pixel Selection Based Improved LSB Image Steganography Method Using 1 D Logistic Map and AES Encryption Algorithm

Authors : Hasi Saha, MST. Rafia Chowdhury, G C Saha, Masum Billah, Suraiya Yasmin

Volume/Issue : Volume 5 - 2020, Issue 2 - February

Google Scholar : https://goo.gl/DF9R4u

Scribd : https://bit.ly/2Sq66fD

Steganography program is mainly concerned about covering the way that a mystery message is being sent, just as hiding the substance of the message. Any computerized picture is contained pixels of various sizes of lattices; different picture steganography algorithms have been created. In this research, it has been exploited the irregular pixel selection based improved LSB exchange technique to hide a message into a cover image. We have considered a mystery message and a spread picture. In the LSB approach, the essential thought is to supplant the Least Significant Bits (LSB) of the spread picture with the bits of the message to be covered up without wrecking the property of the spread picture altogether. The LSB-based system is the most testing one as it is hard to separate between the spread item and stego-object as not many LSB bits of the spread article are supplanted. In digital image there are diverse types of file setup available such as Bitmap, PNG, JPEG, GIF etc. The proposed method focused on BMP images as it is uncompressed and convenient file format to implement LSB steganography technique. Before applying the proposed steganography method, we apply AES cryptography technique to encrypt the top-secret message to improve the security and it will alter the top-secret message to into cipher text. Then through our propose method, we embed the ciphertext into the LSB of the blue component among RGB value. We select pixels randomly through using 1 D logistic map. This method uses X-OR operation for embedding and extracting. Various size data are embedded into the images and PSNR are also considered for these images. It is being expected that the suggested technique will able to hide large amount of data and retaining the advantages of the LSB method.

Keywords : Steganography; Cryptography; 1 D Logistic Map; AES Algorithm; Stego Image; PSNR.


Paper Submission Last Date
30 - November - 2023

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