Smart Card Research and Advanced Applications: IFIP TC8 / by Shouhuai Xu, Moti Yung, Gendu Zhang (auth.), Josep

By Shouhuai Xu, Moti Yung, Gendu Zhang (auth.), Josep Domingo-Ferrer, David Chan, Anthony Watson (eds.)

Smart playing cards or IC playing cards provide a major capability for info processing reasons. The portability and processing energy of IC playing cards permit for hugely safe conditional entry and trustworthy disbursed details processing. IC playing cards which could practice hugely subtle cryptographic computations are already to be had. Their program within the monetary prone and telecom industries are renowned. however the strength of IC playing cards move way past that. Their applicability in mainstream details expertise and the Networked financial system is proscribed generally by way of our mind's eye; the data processing energy that may be received through the use of IC playing cards continues to be as but ordinarily untapped and isn't good understood. right here lies an enormous exposed examine zone which we're in basic terms commencing to determine, and with a view to have a very good impression at the eventual good fortune of the expertise. The learn demanding situations diversity from electric engineering at the facet to tailored cryptographic functions at the software program facet, and their synergies.
This quantity contains the complaints of the Fourth operating convention on clever Card learn and complicated purposes (CARDIS 2000), which used to be backed through the overseas Federation for info Processing (IFIP) and held on the Hewlett-Packard Labs within the uk in September 2000.
CARDIS meetings are particular in that they carry jointly researchers who're lively in all elements of layout of IC playing cards and comparable units and environments, hence stimulating synergy among diverse study groups from either academia and undefined. This quantity offers the newest advances in shrewdpermanent card study and functions, and should be crucial examining for shrewdpermanent card builders, shrewdpermanent card program builders, and desktop technological know-how researchers excited about machine structure, machine safeguard, and cryptography.

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Extra resources for Smart Card Research and Advanced Applications: IFIP TC8 / WG8.8 Fourth Working Conference on Smart Card Research and Advanced Applications September 20–22, 2000, Bristol, United Kingdom

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This is avoided by computing it with a pseudo-random generator implemented in the card, so that it is recomputed instead of being stored. The card only has to store the current state of the pseudo-random number generator, which may be as short as 80 bits. There is a 4-pass variant of these schemes, the goal of which is to "spread" the randomness generated by the verifier by separating his challenge into two ones, respectively sent in the pass 0 (the new one) and pass 2 (as before). This allows to reduce at the minimum the length of the random parameter involved in Alice's answer and consequently is more attractive in factorization-based schemes, such as Guillou-Quisquater [GQ88] or Ong-Schnorr [OS90], for which the computation time is very dependent on this length.

Venkatesan. Speeding up Discrete Log and Factoring Based Schemes via Precomputations. In Advances in Cryptology - EUROCRYPT'98, LNCS 1403, Springer-Verlag, pages 221-235, 1998. S. Even, 0. Goldreich and S. Micali. On-line/Off-line Digital Signatures. In Advances in Cryptology- CRYPT0'89, LNCS 435, Springer-Verlag, pages 263-277, 1991. M. Girault. Self-Certified Public Keys. In Advances in Cryptology - EUROCRYPT'91, LNCS 547, SpringerVerlag, pages 490-497, 1991. M. Girault and J. Stern. On the Length of Cryptographic Hash-Values Used in Identification Schemes.

And it is therefore highly desirable that public key techniques be used, so that no secret master key lies in such a place (even if it is strongly protected). We also expect the transaction to be fast, and the card to be cheap. All that can hardly be achieved with the current technology. Another still more restrictive environment is public transport. An electronic subway ticket or a toll card should be contactless, so that its holder is not required to stop, which implies both a less powerful chip and a much shorter transaction (in the order of 100 milliseconds)!

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