The S-HTTP specification of 6/94 (describing version 1.0 of the protocol)
has been superceeded by a spec released this month describing version 1.1.
It has been published as an Internet Draft "draft-rescorla-shttp-00.txt",
available in the usual places. You can always find the latest version at
"http://www.commerce.net/information/standards/drafts/shttp.txt".
We haven't gotten it down to the "Cliff Notes" description yet, but you may
find the new spec more readable. Any suggestions on how to improve the spec
is welcomed.
You might want to subscribe to the following mailing lists:
www-security@ns1.rutgers.edu
shttp-talk@openmarket.com
for information and discussions about securing WWW transactions.
Cheers,
-Allan