Encrypting directories

[Max V. Zinal]

Gordon Worley wrote:
> for some other archival format, but I think tar is a good start).  The 
> problem is that I can't find a way to use tar without writing a file.  
> I'd like to use pipes, although that probably isn't secure, either.
> [...]
> 
> Any suggestions on better ways to do this would be appreciated.
> 

Do you mean that the following doesn't work on OS X?
   tar cf - . | gzip -9c > /AR/arname.tgz

Regards,
   Max Zinal