Creating Simple Captcha in Cakephp

I am new to cakephp . My question is , is there any built in functionality for cakephp captcha ? If yes , may i know the detailed steps for implementing captcha in cakephp (Not third party captcha) . Please note that I am using cakephp version 2 .

I would use javascript and google’s reCaptcha to achieve this affect.

Although there are PHP solutions if that does not work.

Thanks for your reply .
But I was asking if there is any Cakephp in built feature .
Google recaptcha is also third party captcha . I would not be able to use any third party solution .