EllisLab/CodeIgniter — pull request #2173 by georgepsarakis (2013-01-19 21:54:56+00:00)
Title: mcrypt support for database cache files

__DB cache files__ should be (optionally) __encrypted__. I added the corresponding settings in __application/config/database.php__ where you can set the encryption key and the cipher.

It should be noted that encryption/decryption processes will consume extra CPU resources, also depending on the selected cipher.