iteration

auth_server.lua

@@ -35,12 +35,17 @@ function convert_password(password)
     return hash(password .. "3m&LmNm7")
 end
 
--- Does a simple hash of a string
+-- Does a complex hash of a string to make it harder to guess
 function hash(str)
     local hash = 0
-    for i = 1, #str do
-        hash = hash + string.byte(str, i)
+    local len = string.len(str)
+    local byte = 0
+
+    for i = 1, len do
+        byte = string.byte(str, i)
+        hash = bit32.band(hash * 31 + byte, 0xFFFFFFFF)
     end
+
     return hash
 end