We also have one interface that we use a file encryption on. A state institution that we work with uses PGP encryption – basically they gave us an encoding phrase to encrypt/decrpyt files that we ftp to/from them. With a bit of scripting, I automated this process of stopping the thread that creates the file, run a tcl script to create file headers/trailers, encrypt the file with their PGP phrase, and ftp the file to them. We are on AIX as well.
For more info on PGP, visit: http://www.pgpi.org
