as3: secure xml-files - best method

I want to secure any queries to my /xmlrpc.php to ban bots and others from read开发者_运维问答ing out my database.

What's the best method to authenticate the user and that his query has been sent from my main-swf ?

• by using oAuth services
• by using secureTokens

Are you asking how to do it, or are you asking which of the 2 is the best method? In fairness, they're both essentially the same thing, and just differ in terms of implementation