Fixed access

src/main/java/Main/Utils.java

@@ -1,7 +1,7 @@
 package Main;
 
 public class Utils {
-    private static String bytesToHex(byte[] hash) {
+    static String bytesToHex(byte[] hash) {
         StringBuilder hexString = new StringBuilder(2 * hash.length);
         for (byte b : hash) {
             String hex = Integer.toHexString(0xff & b);