Quantum cryptography is a promising solution towards absolute security in long term cryptosystems. While the use of quantum cryptography in fiber optical networks gets significant advances, research on the application of quantum cryptography in mobile wireless network is still premature. In this paper, we analyze the interests of using quantum cryptography in 802.11 wireless networks, and propose a scheme integrating quantum cryptography in 802.11i security mechanisms for the distribution of the encryption keys. The use of an apparatus network to provide alternative line-of-sight paths is also discussed.
Reuse of learning objects often requires a threedimensional adaptation : content, context and display. The resulting new object must explicitly refer to the set it comes from when being inserted in a Learning Object Repository (LOR). Thus, we organize Learning objects in the LOR according to three levels (abstract, instantiation and presentation levels) that take into account those ownership sides. To guarantee a correct insertion of into the LOR, we designed a network matcher in order to integrate new learning objects into the Learning Object Repository and linking them to existing ones in the Learning Object Network. However, this organization allows only ownership definition but not its detection and protection. That's why, we show limitations of existing ways to preserve ownership (especially the digital signature) and propose some possible solutions.
Abstract. Protocols and applications could profit of quantum cryptography to secure communications. The applications of quantum cryptography are linked to telecommunication services that require very high level of security such as bank transactions.The aim of this paper is to present the possibility to use quantum cryptography in critical financial transactions, to analyse the use of quantum key distribution within IPSEC to secure these transactions and to present the estimated performances of this solution.After having introduced basic concepts in quantum cryptography, we describe a scenario of using quantum key distribution in bank transactions in Switzerland. Then, we propose a solution that integrate quantum key distribution into IPSEC. A performance analysis is done to demonstrate the operational feasibility of this solution.
Abstract. Quantum cryptography could be integrated in various existing concepts and protocols to secure communications that require very high level of security. The aim of this paper is to analyse the use of quantum cryptography within PPP. We introduce basic concepts of the Point to Point Protocol; we propose a solution that integrates quantum key distribution into PPP. An example is given to demonstrate the operational feasibility of this solution
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