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Date: Mon, 19 Jul 1999 10:51:32 -0400
To: [EMAIL PROTECTED], [EMAIL PROTECTED]
From: Robert Hettinga <[EMAIL PROTECTED]>
Subject: DCSB: Ari Juels; Outsourcing MicroMint Coins, and X-Cash for
Contingent Financial Instruments
Cc: Ari Juels <[EMAIL PROTECTED]>
Sender: [EMAIL PROTECTED]
Reply-To: Robert Hettinga <[EMAIL PROTECTED]>
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The Digital Commerce Society of Boston
Presents
Dr. Ari Juels
Senior Research Scientist
RSA Laboratories
Security Dynamics, Inc.
MicroMint on the Cheap and
Executable Financial Instruments
Tuesday, August 3rd, 1999
12 - 2 PM
The Downtown Harvard Club of Boston
One Federal Street, Boston, MA
We discuss two technologies that aim to facilitate electronic commerce in
distributed environments under minimal assumptions of trust. First, we show
how the MicroMint micropayment scheme of Rivest and Shamir can be broken up
into a collection of small "puzzles". Distribution of these puzzles enables
the minting operation for the scheme to be outsourced to a large group of
untrusted computational devices. Additionally, we discuss a cryptographic
technique that enables mobile agents to carry digital cash in such a way
that they are secure against "pickpocketing". We refer to this technique as
"X-cash" or "Executable digital cash". X-cash may also be used as the basis
for creating digital financial instruments with flexibly defined properties.
The first portion of the talk includes material to appear in the paper
"Bread Pudding and Proofs of Work (POWs)" in Communications and Multimedia
Security '99. The second portion of the talk draws on the paper "X-cash:
Executable Digital Cash", which appeared in Financial Cryptography '98. Both
papers are by Markus Jakobsson (Bell Laboratories) and Ari Juels (RSA
Laboratories).
Dr. Juels received his B.A. in Latin Literature and Mathematics from
Amherst College in 1991, and his Ph.D. in Computer Science from the
University of California at Berkeley in 1996. He subsequently joined
RSA Laboratories, where he now holds the position of senior research
scientist. His research interests span several areas of cryptography,
with a special focus on protocols underlying and supporting financial
applications.
This meeting of the Digital Commerce Society of Boston will be held
on Tuesday, August 3, 1999, from 12pm - 2pm at the Downtown Branch of
the Harvard Club of Boston, on One Federal Street. The price for
lunch is $32.50. This price includes lunch, room rental, various A/V
hardware, and the speakers' lunch. The Harvard Club *does* have
dress code: jackets and ties for men (and no sneakers or jeans), and
"appropriate business attire" (whatever that means), for women. Fair
warning: since we purchase these luncheons in advance, we will be
unable to refund the price of your lunch if the Club finds you in
violation of the dress code.
We need to receive a company check, or money order, (or, if we
*really* know you, a personal check) payable to "The Harvard Club of
Boston", by Saturday, July 31st, or you won't be on the list for
lunch. Checks payable to anyone else but The Harvard Club of Boston
will have to be sent back.
Checks should be sent to Robert Hettinga, 44 Farquhar Street, Boston,
Massachusetts, 02131. Again, they *must* be made payable to "The
Harvard Club of Boston", in the amount of $32.50. Please include your
e-mail address so that we can send you a confirmation
If anyone has questions, or has a problem with these arrangements
(We've had to work with glacial A/P departments more than once, for
instance), please let us know via e-mail, and we'll see if we can
work something out.
We are actively searching for future speakers. If you are in Boston
on the first Tuesday of the month, and you are a principal in digital
commerce, and would like to make a presentation to the Society,
please send e-mail to the DCSB Program Commmittee, care of Robert
Hettinga, <mailto: [EMAIL PROTECTED]>.
For more information about the Digital Commerce Society of Boston,
send "info dcsb" in the body of a message to <mailto:
[EMAIL PROTECTED]> . If you want to subscribe to the DCSB e-mail
list, send "subscribe dcsb" in the body of a message to <mailto:
[EMAIL PROTECTED]> .
We look forward to seeing you there!
Cheers,
Robert Hettinga
Moderator,
The Digital Commerce Society of Boston
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Robert A. Hettinga <mailto: [EMAIL PROTECTED]>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
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'
For help on using this list (especially unsubscribing), send a message to
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Robert A. Hettinga <mailto: [EMAIL PROTECTED]>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
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'
