Automatic mounting of encrypted partitions on OS X

There is a well-documented method of getting Unix to automatically mount a partition on Mac OS X, namely adding something like this to /etc/fstab:

UUID=C92FFDDD-5E09-34ED-A10D-914EA92EA888 /MountPoint hfs auto

However if the partition is encrypted, this won't work. Does anyone know is there a way to get Unix to mount encrypted partitions?