From: Robert Hettinga <rah@shipwright.com>
Date: Sat, 25 Oct 1997 03:09:12 +0800
To: cypherpunks@cyberpass.net
Subject: FYI: Tygar talk on Monday, November 3 at Harvard
Message-ID: <v03110712b0769c54a9b0@[139.167.130.248]>
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X-Sender: kentborg@pop.tiac.net
Date: Fri, 24 Oct 1997 11:42:25 -0400
To: Robert Hettinga <rah@shipwright.com>
From: Kent Borg <kentborg@borg.org>
Subject: FYI: Tygar talk on Monday, November 3 at Harvard
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Having recently come out of retirement (my temporary early
retirement, longer than I would have dreamed I could have pulled off,
was wonderful), I have not hit upon a smooth stride in my email
reading techniques.  Riding the bus (most) every day means that I am
going to be running up to date on my Herald Tribune, Economist, Byte,
Science News, Scientific American, etc., but I am behind on such
things as the DCSB mailing list.

So I don't know whether this has gone by on the list, you might want
to send it out:

>From: rivest@theory.lcs.mit.edu (Ron Rivest)
>Date: Fri, 24 Oct 97 11:29:49 EDT
>To: cis-seminars@theory.lcs.mit.edu
>Subject: FYI: Tygar talk on Monday, November 3 at Harvard
>
>
>
>                              Harvard University
>                    Computer Science Colloquium Series
>
>                     Atomicity in Electronic Commerce
>
>                             Doug Tygar
>                       Computer Science Department
>                       Carnegie Mellon University
>
>                        Monday, November 3, 1997
>                                4  PM
>                           Pierce Hall 209
>                       (Tea at 5 pm Brooks Room)
>
>
>Abstract
>
>The explosion of the Internet has brought with it a
>desire to allow information goods to be bought or sold
>over the network.  Several schemes for realizing this
>have been proposed over the last year, and there are a
>number of commercial ventures to support electronic
>commerce.
>
>In the first part of this talk, I examine several
>protocols for electronic commerce from the perspective
>of the distributed transactions.  Most models of
>electronic commerce have presumed a highly-available
>error-free network.  I argue for a more realistic model
>of commerce using notions of atomicity in electronic
>commerce, and propose three levels of atomic
>transactions.  I will discuss how to exploit network
>failures to explicitly attack commercially used
>protocols and fraudulently obtain goods or money.
>
>In the second part of the talk, I will discuss two very
>different approaches to achieving high degrees of
>atomicity:  the first, an internet billing system
>called NetBill is being used to allow highly atomic
>microtransactions of information goods.  This
>technology has recently been licensed for commercial
>use.  The second approach, Information Based Indicia,
>uses secure coprocessor hardware to ensure atomicity,
>and is being adopted by the US Postal Service to
>address their problem of theft of postage through
>counterfeit postage indicia.
>
>
>Host: Professor Michael Rabin
>
>
>
>
>
>
>
>
>
>
>
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--
Kent Borg                           kentborg@borg.org
W: +1-781-768-2300 x1741           H: +1-617-776-6899
  "The creative instinct has always been a stronger
   motive than mere profit to do truly new and
   revolutionary things."
                                        - Phil Karn

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-----------------
Robert Hettinga (rah@shipwright.com), Philodox
e$, 44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'
The e$ Home Page: http://www.shipwright.com/
Ask me about FC98 in Anguilla!: <http://www.fc98.ai/>