126 lines
4.2 KiB
Java
126 lines
4.2 KiB
Java
import java.io.*;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.util.Random;
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public class guesser {
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public static void main(String[] args) throws NoSuchAlgorithmException {
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System.out.println("Guessing hash of a random 6 digit password");
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Random random = new Random();
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int seed= random.nextInt(1000000);
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String randomPassword = getRandomPassword(seed);
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System.out.println("Random 6-character string: " + randomPassword);
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System.out.println("Hashed password");
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String hashed = hash.hashstring(randomPassword);
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System.out.println("Guessing...");
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long startTime = System.nanoTime();
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boolean match = false;
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int check=0;
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// Check hash table
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try{
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BufferedReader reader = new BufferedReader(new FileReader("hashtable.txt"));
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String line;
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int lineNumber = 0;
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while ((line = reader.readLine()) != null) {
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lineNumber++;
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if (line.contains(hashed)) {
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System.out.println("Match!");
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System.out.println("Password is: " + line.split("\\$")[0]);
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}
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}
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} catch (IOException e) {
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System.out.println(e);
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}
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long endTime = System.nanoTime();
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long duration = (endTime - startTime);
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// Calculate the time taken in seconds
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double seconds = (double)duration / 1_000_000_000.0;
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System.out.println("Time taken: " + seconds + " seconds");
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System.out.println("Guessing hash of a random 6 digit password with salt");
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System.out.println("Hashed password");
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String salt = bytetohex.toHexString(saltedHash.getSalt());
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// Remove starting 0s
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while (salt.charAt(0) == '0') {
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salt = salt.substring(1);
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}
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String salted = randomPassword + salt;
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String hashedSalted = hash.hashstring(salted);
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System.out.println("Guessing...");
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startTime = System.nanoTime();
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match = false;
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check=0;
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while (!match) {
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String guess = getRandomPassword(check);
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check++;
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String saltedGuess = guess + salt;
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String hashedGuess = hash.hashstring(saltedGuess);
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if (hashedGuess.equals(hashedSalted)) {
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match = true;
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System.out.println("Match!");
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System.out.println("Password is: " + guess);
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}
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}
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endTime = System.nanoTime();
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duration = (endTime - startTime);
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seconds = (double)duration / 1_000_000_000.0;
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System.out.println("Time taken: " + seconds + " seconds");
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System.out.println("Guessing hash of a random 6 digit password with pepper");
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System.out.println("Hashed password");
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String pepper = pepperedHash.getPepper();
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String peppered = randomPassword + pepper;
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String hashedPeppered = hash.hashstring(peppered);
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System.out.println("Guessing...");
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startTime = System.nanoTime();
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match = false;
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check=0;
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while (!match) {
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String guess = getRandomPassword(check);
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check++;
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if (pepperedHash.checkPeppered(guess,hashedPeppered)) {
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match = true;
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System.out.println("Match!");
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System.out.println("Password is: " + guess);
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}
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}
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endTime = System.nanoTime();
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duration = (endTime - startTime);
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seconds = (double)duration / 1_000_000_000.0;
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System.out.println("Time taken: " + seconds + " seconds");
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}
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public static String getRandomPassword(int value) {
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// Define the characters that can be used in the random string
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String characters = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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// Initialize a StringBuilder to build the random string
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StringBuilder randomString = new StringBuilder(6);
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// Generate a string using the value
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for (int i = 0; i < 6; i++) {
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randomString.append(characters.charAt(value % characters.length()));
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value /= characters.length();
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}
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return randomString.toString();
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}
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}
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