RSA Algorithm

import java.io.*;

import java.util.*;

import java.math.*;

class RSA

{

public static void main(String args[]) throws IOException

{

Double p,q,n,d,c,t,m;

Double e=13.0;

BufferedReader br= new BufferedReader(new InputStreamReader(System.in));

System.out.println("Enter Two Prime Numbers:");

p=Double.parseDouble(br.readLine());

q=Double.parseDouble(br.readLine());

n=p*q;

t=(p-1)*(q-1);

d=Math.pow(e,-1);

d=((1+k*t)/e);

System.out.println("enter the message");

m=Double.parseDouble(br.readLine());

c=Math.pow(m,e)%n;

t=Math.pow(c,d)%n;

System.out.println("Encrypted message"+c);

System.out.println("original message"+m);

}

}

Output: