Added implementation for DHEat denial-of-service attack (CVE-2002-20001). (#211, #217)

tox.ini

@@ -101,11 +101,14 @@ disable =
         no-else-return,
         super-with-arguments,   # Can be re-factored, at some point.
         too-complex,
+        too-many-arguments,
         too-many-boolean-expressions,
         too-many-branches,
         too-many-instance-attributes,
         too-many-lines,
         too-many-locals,
+        too-many-nested-blocks,
+        too-many-return-statements,
         too-many-statements,
         consider-using-f-string
 max-complexity = 15