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