[5453] in cryptography@c2.net mail archive

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Re: message-signing at the MTA level

daemon@ATHENA.MIT.EDU (Greg Rose)
Mon Aug 23 00:00:07 1999

Date: Sun, 22 Aug 1999 21:45:53 -0400
To: Russell Nelson <nelson@crynwr.com>
From: Greg Rose <ggr@qualcomm.com>
Cc: cryptography@c2.net
In-Reply-To: <14271.23262.969714.202149@desk.crynwr.com>

At 22:09 21/08/1999 -0400, Russell Nelson wrote:
>I've been thinking about cryptographic signing of messages at the mail 
>transfer agent level.  I can think of how to do it, but I'm not sure
>what problem it solves.  :)  Anyone have any ideas?

Signing messages at the MTA level solves no problem at all unless there's a
widely deployed PKI.

>[I remember that someone in Australia built some experimental patches
>to do this for sendmail some time back.

That was me/us. There's a paper coming up and a rerelease of the software
in about three weeks. I'll send another message then.

regards,
Greg.


Greg Rose                                       INTERNET: ggr@Qualcomm.com
Qualcomm Australia          VOICE:  +61-2-9181-4851   FAX: +61-2-9181-5470
Suite 410, Birkenhead Point,               http://people.qualcomm.com/ggr/ 
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