gilfether/phpcrypt — pull request #2 by tcely (2014-05-09 00:50:03+00:00)
Title: Match the MCRYPT key length behaviors.

From internal_init_mcrypt, the key size is set to the next higher entry from supported key sizes.

http://mcrypt.cvs.sourceforge.net/viewvc/mcrypt/libmcrypt/lib/mcrypt.c?revision=1.1.1.1&view=markup