Move aes keys to their own structure.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8521 4b0bc96b-bc66-0410-9d44-ebda105a78c1
monitor: Do not leak temporary buffers.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8522 4b0bc96b-bc66-0410-9d44-ebda105a78c1