@@ -0,0 +1,305 @@
+package com.dotosoft.dotoquiz.utils;%0A%0Aimport java.math.BigInteger;%0Aimport java.security.SecureRandom;%0A%0Apublic final class SessionIdentifierGenerator %7B%0A%09private static SecureRandom random = new SecureRandom();%0A%0A%09public static String nextSessionId() %7B%0A%09%09return new BigInteger(130, random).toString(32);%0A%09%7D%0A%7D

add session generator