Uygulama Sezar ifreleme algoritmasn bildiiniz bir dilde kodlaynz! Frat niversitesi Yazlm MhendisliiMuhammet Baykara RSA Algoritmas Frat niversitesi Yazlm MhendisliiMuhammet Baykara Rsa rnek Frat niversitesi Yazlm MhendisliiMuhammet Baykara Aratrma konular Vigenere ifresi Vernam ifresi Sk kullanlan RSA, DES ve AES, Diffie Hellman algoritmalar kodlaynz. alma mantklarn farkllklarn birbirlerinden kavrayarak raporlaynz. Frat niversitesi Yazlm MhendisliiMuhammet Baykara Steganografi uygulama matlab message = input('Enter message image name: ', %kaynak mathworks clc; clear all; close all; cover = input('Enter cover image: ', 's'); PSNR = 10*log10(M*N./MSE);

PSNR of message image to extracted image is') disp(abs(PSNR)) disp('MSE is') disp(abs(MSE)) 's'); x = imread(cover); % cover message y = imread(message); % message image n = input('Enter the no of LSB bits to be subsituted'); S = uint8(bitor(bitand(x,bitcmp(2^n1,8)),bitshift(y,n-8))); %Stego E = uint8(bitand(255,bitshift(S,8-n))); %Extracted origImg = double(y); %message image distImg = double(E); %extracted image [M N] = size(origImg); distImg1=imresize(distImg,[M N]); error = origImg distImg1; figure(1),imshow(x);title('1.Cover image') figure(2),imshow(y);title('2.Message to be hide') figure(3),imshow((abs(S)),[]);title('3.Stegnograp hic image') figure(4),imshow(real(E),[]); title('4.Extracted image') MSE = sum(sum(error .* error)) / (M * N); if(MSE > 0) figure(5),imhist(x); title('Histogram of cover image') figure(6),imhist(S); title('Histogram of transformed stego image') Frat niversitesi Yazlm MhendisliiMuhammet Baykara