Secure Information Networks: Communications and Multimedia by Stelios Karanastasis, Ahmed Patel (auth.), Bart Preneel

By Stelios Karanastasis, Ahmed Patel (auth.), Bart Preneel (eds.)

This quantity includes papers provided on the fourth operating convention on Communications and Multimedia defense (CMS'99), held in Leuven, Belgium from September 20-21, 1999. The convention, arrangedjointly by means of Technical Committees eleven and six of the overseas Federation of knowledge Processing (IFIP), was once equipped via the dep. of electric Engineering of the Katholieke Universiteit Leuven. The identify "Communications and Multimedia protection" was once used for the 1st time in 1995, while Reinhard Posch prepared the 1st during this sequence of meetings in Graz, Austria, following up at the formerly nationwide (Austrian) IT Sicherheit meetings held in Klagenfurt (1993) and Vienna (1994). In 1996, CMS happened in Essen, Germany; in 1997 the convention moved to Athens, Greece. The convention goals to supply a world discussion board for shows and discussions on protocols and strategies for delivering safe info networks. The contributions during this quantity overview the state-of­ the-art in communications and multimedia defense, and speak about sensible of issues stories and new advancements. They hide a large spectrum inc1uding community protection, internet protection, protocols for entity authentication and key contract, protocols for cellular environments, utilized cryptology, watermarking, clever playing cards, and criminal elements of electronic signatures.

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Extra resources for Secure Information Networks: Communications and Multimedia Security IFIP TC6/TC11 Joint Working Conference on Communications and Multimedia Security (CMS’99) September 20–21, 1999, Leuven, Belgium

Example text

Here, buffers are necessary for collecting octets until an encryption block of, say, 8 octets is available. Still, the micro-controller needs to take care of setting up the keys, is in charge of handling the D-channel communication, and needs to provide in real-time two to four keys for the multiplexed encryption unit. DCL------------r-------------DCL FSC FSC DUin DDout DUout DDin IOMTM-2 interception module Il C keys crypto module Figure 6. Time-muItiplexed encryption unit The benefit of this system is that only one encryption unit needs to be employed.

If the authentication of the transaction was left to an individual's discretion, then this could lead to invitation to embezzlement.

It is either transmitted without alteration, or not communicated to the UTOPIA output at all. The ATM encryption unit can handle 155 Mbps in both directions sirnultaneously. The bottle-neck of the overall operation lies in the speed of exchanging keys and IV between CAM and encryption core. external CAMIRAM interface downstream UTOPIA input upstream UTOPIA input CAM/ RAM : IN BUF ~ .... •! • • DES CONTROLI ARBITRATION ~ ... OUT BUF old IV newIV Kl' K 2 f oldIV newIV Kl' K 2 f .... IN BUF • DES ...

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