> Does FirebirdSQL supports encrypted databases? If not is there
> any way to store a (live) database in an encrypted file. Maybe
> replacing io functions with wraper routines?

It does not need to - much better to use a specialisd tool.
For example: http://www.truecrypt.org/
or http://www.jetico.com/

For an article that discusses this stuff see:
http://firebird.sourceforge.net/manual/fbmetasecur.html

--
Geoff Worboys
Telesis Computing