I finally got around to downloading and reading the remailer stuff from
the cypherpunks ftp site*. I could have saved myself some embarrassment
if I had read it before posting my "original" SASE idea. The file
pub/cypherpunks/remailer/hals.instructions
describes a mechanism that is basically a simplified SASE.
Oh well...
[email protected]
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*ftp soda.berkeley.edu