[HGI-News] WG: HGI-Seminar am Montag, 1.12.2003

So Dez 7 14:33:42 CET 2003

Gäst sind wie immer herzlich willkommen. Gruß, Christof Paar
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                   Ammar Alkassar
             Universität des Saarlands

  "Secure Object Identification - Or: How To Solve The
             Chess-Grandmaster-Problem"

       Montag, 8.12.2003, 13:15 st, IC 4/39

Abstract

Many applications of cryptographic identification protocols are vulnerable
against physical adversaries who perform real time attacks. For instance,
when identifying a physical object like an automated teller machine, common
identification schemes can be bypassed by faithfully relaying all messages
between the communicating participants. This attack is known as mafia fraud.

In my talk I will give an overview over different approaches to cope with
that fraud. One approach, the Probabilistic Channel Hopping system, solves
this problem by hiding the conversation channel between the participants.
The security of this approach is based on the assumption that an adversary
cannot efficiently relay all possible communication channels of the PCH
system in parallel.

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VORTRÄGE IM WS 2003/04:
(Abstracts sind hier:
 www.crypto.ruhr-uni-bochum.de/Seminare/Krypt/Kryptowise0304.html)

 10.11.2003 Yvo Desmedt, Florida State University, USA, 13.00 c.t. IC 4/39
 Cryptanalysis of Several of the UCLA Watermarking Schemes for Intellectual
Property Protection of Digital Circuits/Designs

 01.12.2003 Christof Paar, COSY Group - RUB, 13.00 c.t. IC 4/39
 Eingebettete IT-Sicherheit im Automobil

 08.12.2003, Ammar Alkassar, Uni Saarland, 13.00 c.t. IC 4/39,
 "Secure Object Identification - Or: How To Solve The
Chess-Grandmaster-Problem"

 15.12.2003, Philippe Rivard, COSY Group -RUB, 13.15 c.t. IC 4/39,
 "Light-weight embedded SSL"

 12.01.2003, Sandeep Kumar, COSY Group -RUB, 13.15 c.t. IC 4/39,
 "Embedded End-to-End Wireless Security with ECDH Key Exchange"

 19.01.2003, Stefan Lucks, Uni. Mannheim, 13.15 c.t.,
 TBA

 26.01.2003, Johannes Ueberberg, SRC GmbH, 13.15 c.t.,
 "Sichere Zahlungsverkehrsmodelle im Internet"

 02.02.2003, Klaus Milczewsky, T-Online International AG, 13.15 c.t.,
 TBA

 09.02.2003, Roger Oyon, Uni. Essen, 13.15 c.t.,
 "Fast Arithmetic on Jacobians of Picard Curves"

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Prof. Christof Paar
Chair for Communication Security
Dept. of Electr. Eng. & Information Sciences
Ruhr-University Bochum
44780 Bochum, Germany

URL: www.crypto.rub.de