Carl Galgano said:

> The data are banking transactions, we will send each transaction once.

Leif added:

>I see no need to be fancy (and depend on all kind of external factors).
>Compress the data (CMRDATA), "encrypt" with a shared secret key
>by XORing the compressed data starting past the 12-byte header.
>This relies on your saying "need some encryption", implying that
>NSA-type security is not really needed.

If it is a non-standard encryption (i.e. not PGP or similar "commercial"
product) , it'll require the receiving party to write custom code to decode
it.  arl's trading partner may or may not want to go through that exercise.
It's amazing how creative the legal department can be...

Buck Calabro
Aptis; Albany, NY
"Nothing is so firmly believed as
 that which we least know" -- Michel Montaigne
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