New approach for data encrypted and hiding by EMD method
Abstract
The aim of the research is to encrypt the input text using a suggested encryption method called Merge Substitution Transposition (MST) based on a proposed table of characters in order to integrate the compensation and replacement methods to encrypt the input text and use the Exploiting Modification Direction (EMD) method, which is a modern method and adopted as an efficient method of concealment in order to hide inside the image and send it to the receiver's hand. The system then acts as a receiver for the sent image to Embedding decoder, receive encrypted text, perform the decryption process and obtain the original text.The RGB image system was applied and the proposed algorithm was applied using Matlab language. The proposed algorithm achieved good results by using the PSNR, MSE efficiency measures on the color images and retrieval all the original text.
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