Improve session id gen

public/index.php

@@ -10,6 +10,15 @@ $RATELIMITED = false;
 $SUCS_LOGIN = false;
 $ISS_LOGIN = false;
 
+ini_set("session.use_strict_mode",1);
+
+//php7.1 and above
+ini_set("session.sid_bits_per_character",5);
+ini_set("session.sid_length",64);
+//php7.1 below
+ini_set("session.hash_bits_per_character",5);
+ini_set("session.hash_function", "sha256");
+
 session_set_cookie_params(0,"/","sucs.org",true,true);
 session_name('sucs_sso_id_v1');