> At the risk of tilting at windmills, would the compression/ASCII 
> armor feature of PGP be acceptable?  This part of PGP does not use
> encryption, so anyone would be able to read the messages.
You're tilting.  ;-)  These encoded messages are just a small part of
the traffic here and I'd just as soon stick to tools that can be easily
had. Not exactly a bad idea, but....no.
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