Hi

Can someone tell me which algorithm uses MariaDB when using table encryption?
Looking at 
https://mariadb.com/kb/en/library/data-at-rest-encryption/

Seems to talk only about encryption of the key file, but not on the database data. I've been looking for a while and haven't found complete documentation about it.
I've even taken a look at the MariaDB source code, in the file
/storage/innobase/fil/fil0crypt.cc

Seems the encryption is done by AES algorithm, but I'm not sure, and I don't know the key size neither the mode of operation.

Thanks

Cesar