I am developing application which supplies XML-RPC Wordpress link with publish new Posts Wordpress.

On every Wordpress<->Application connection I must provide login &lifier pass information (in plain text). How must i store that information during my database?

You will find many managers permitted to determine the code so base64() etc. no sense. Maybe individual salt to each client? What is your opinion? Or possibly there's a method to send encoded password in XML-RPC Wordpress request?