feat: Add salted hash

README.md

@@ -1,5 +1,10 @@
 # Java Password storage solutions
 
 1. [Hashing](hash.java)
+2. [Salted Hashing](saltedHash.java)
 
 
+
+
+https://crackstation.net/ - Decrypt Hashes
+

hash.java

@@ -1,7 +1,6 @@
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
-import java.math.BigInteger;
 import java.nio.charset.StandardCharsets;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;

saltedHash.java

@@ -0,0 +1,55 @@
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+
+public class saltedHash {
+    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 salt = bytetohex.toHexString(getSalt());
+            // Remove starting 0s
+            while (salt.charAt(0) == '0') {
+                salt = salt.substring(1);
+            }
+
+            String salted = input + salt;
+            System.out.println("Hashed as:");
+            String hashed = hash.hashstring(salted);
+            String stored = hashed + ":"+salt;  
+            System.out.println(stored);
+
+            System.out.println("Enter a string to check: ");
+            String check = reader.readLine();
+
+            // Split stored by the colon
+            String[] parts = stored.split(":");
+            // Salt the checked
+            String saltedCheck = check + parts[1];
+            // Hash the salted checked
+            String hashedCheck = hash.hashstring(saltedCheck);
+            // Compare the hashed salted checked to the stored hash
+            if (hashedCheck.equals(parts[0])) {
+                System.out.println("Match!");
+            } else {
+                System.out.println("No match!");
+            }
+
+
+        } catch (NoSuchAlgorithmException e) {
+            System.out.println(e.toString());
+        }
+
+    }
+
+    private static byte[] getSalt() throws NoSuchAlgorithmException {
+        SecureRandom random = new SecureRandom();
+        byte[] salt = new byte[16];
+        random.nextBytes(salt);
+        return salt;
+    }
+}