Re: Crypto-sendmail (was Crypto Coding Project)

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Marshall Clow (mclow@owl.csusm.edu)
Fri, 21 Aug 1998 08:56:32 -0700


At 8:04 AM -0700 8/20/98, steven.soroka@mts.mb.ca wrote:
>I've been reading for a while here... correct me if I'm wrong, but
>if the smtp server encrypts the body of the message, but not the routing
>information, the pop server receiving the mail on the other end would have
>to decipher it to make it transparent to the user..
>if the routing information is encrypted, all the routers have to be able
>to decrypt it and encrypt it again, which is close to impossible to
>impliment.
>
Nope.

What I suggested [ not Perry ;-) ] was that mail servers
use an encrypted pipe when sending mail to other mail servers.

The entire message would be encrypted; routing info (of the mail)
and body as well.

The receiving mail server would decrypt the message as it was
received, and present it to the user (via pop or IMAP or whatever)
unencrypted.

This would not provide perfect security. (Hardly!)
If widely implemented, however, it would make it impossible for
any organization to snoop large quantities of unreleated email by
setting up a packet sniffer at, say, MAE-EAST, and capturing what
went by.

-- Marshall

Marshall Clow Adobe Systems <mailto:mclow@mailhost2.csusm.edu>

"I predict future happiness for Americans if they can prevent the
government from wasting the labors of the people under the pretense of
taking care of them." --Thomas Jefferson


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