How do I send EDI file securely over Internet via FTP or HTTPS?

We have a few (3-5) clients who would like to receive
EDI via FTP or HTTPS

We would send the file to them (from Unix or
Windows), they would receive it.

Of course we could use standard FTP. However is
there some way to send an encrpyted FTP?
I have heard of Kermit, SSH, and PGP. Not sure
which if any is the correct, low cost and easiest
approach for us to first encrpyt and then FTP/HTTPS
(not sure how) over the Internet to our 2-4 customers.


1. What is the best approach and how would one
set-up  to run unattended?
What software is needed on both ends?
Note that we are the sender so we will not need much.
 

2. Supposedly the SAP Business Connector has the
ability to send via SSL over the Internet. How
does this work? We could then send our ship notice to
the customer through this. Not sure of the mechanices,
what is needed on each end, how we would send it,
etc..

Thanks for any guidance.
Peter
[email protected]


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