zendframework/zf2 — pull request #1984 by ezimuel (2012-07-25 10:46:29+00:00)
Title: Refactored crypt in Zend\Filter and rand in Zend\Captcha

I removed the Mcrypt adapter in Zend\Filter\Encrypt in favor of BlockCipher (this improve the security of the filter encryption using authentication CBC+HMAC of BlockCipher).
I refactored the rand feature of Zend\Captcha using the new Zend\Math\Rand (this improve the randomness of the Id).
I simplify the salt and key management in Zend\Crypt\Symmetric\Mcrypt and Zend\Crypt\BlockCipher, checking for errors during the encrypt().