63 lines
2.0 KiB
Java
63 lines
2.0 KiB
Java
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.security.NoSuchAlgorithmException;
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import java.util.Random;
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public class pepperedHash {
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public final static String alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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public static void main(String[] args) throws IOException {
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BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
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System.out.println("Enter a string to hash and salt: ");
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String input = reader.readLine();
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try {
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String pepper = getPepper();
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System.out.println("Pepper is: " + pepper);
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// Remove starting 0s
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String peppered = input + getPepper();
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System.out.println("Hashed as:");
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String hashed = hash.hashstring(peppered);
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System.out.println(hashed);
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System.out.println("Enter a string to check: ");
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String check = reader.readLine();
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if (checkPeppered(check,hashed)){
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System.out.println("Match!");
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} else {
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System.out.println("No match!");
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}
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} catch (NoSuchAlgorithmException e) {
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System.out.println(e.toString());
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}
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}
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public static boolean checkPeppered(String check,String hashed) throws NoSuchAlgorithmException {
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boolean match = false;
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for (int i = 0; i<52;i++){
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String pepperedCheck = check + alphabet.charAt(i);
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String hashedCheck = hash.hashstring(pepperedCheck);
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if (hashedCheck.equals(hashed)) {
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match = true;
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break;
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}
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}
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return match;
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}
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public static String getPepper() {
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// Return random a-zA-Z
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Random random = new Random();
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int randomIndex = random.nextInt(52);
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// Get the random character
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char randomChar = alphabet.charAt(randomIndex);
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return Character.toString(randomChar);
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}
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}
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