KnowledgeHub
Questions
Tags
Users
Search
Alex Rivera
|
Logout
Edit Question
Title
Body
I want to encrypt a message such as 'HELO1234 and then decrypt to get the original one.I have written RSA code in matlab which is not working correctly. PARAMETER CALCULATION temp=1; range=1:10; k=isprime(range) prime_mat=range(find(k)) p=randsample(prime_mat,1); q=randsample(prime_mat,1); if(p~=q) n=p*q; phi_n=(p-1)*(q-1); u=1:phi_n -1; end while temp enckey=randsample(u,1); deckey=randsample(u,1); if(enckey~=deckey) if(gcd(enckey,phi_n)~=1 ... && gcd(deckey,phi_n)~=1 ... &&gcd(enckey*deckey,phi_n)~=1) temp=1; else temp=0; end end end ENCRYPTION PROCESS char t= 'hello123'; t=uint8(t); len=length(t) pow=[]; cipher_text=[]; for i=1:len pow=[pow;t(i).^(enckey)]; %each element of the pt matrix(plain text) is raised to the power of encryption key(enc_key) and stored in pow matrix(power matrix) cipher_text=[cipher_text;mod(pow(i),n)];% cipher text is calculate d OUTPUT OF encryption process k = 0 1 1 0 1 0 1 0 0 0 prime_mat = 2 3 5 7 p = 7 q = 2 n = 14 enckey = 5 deckey = 1 phi_n = 6 len = 28 cipher_text = 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 DECRYPTION PROCESS plain_text=[]; pow1=[]; len1=length(cipher_text); for i=1:len pow1=[pow1;cipher_text(i).^(deckey)] plain_text=[plain
Tags (comma-separated)
Save Edits
Cancel