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New scheme of integrating quantum key distribution in 802.11i

Rima Djellab

Published Apr 1, 2009• 3 citations
Publisher

Abstract

User's mobility is increasing with the height level of mobility that the mobile networks offer. The information transmitted from A to B in a network has to be secured from any eavesdropping, so the main solution used is the cryptography. Nevertheless, the classical cryptography suffers from some limits that make it vulnerable in front of some kind of attacks like "attack by dictionary" or "exhaustive attack". In the other hand, the miniaturisation in processor industry (Moor's law) causes interferences. For that purpose and other new field appear to overcome that kind of problem. That is "Quantum cryptography". In the present paper we will present an enhanced proposition of integration the QKD in the 802.11i.

DOI
10.1109/mmcs.2009.5256734

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User's mobility is increasing with the height level of mobility that the mobile networks offer. The information transmitted from A to B in a network has to be secured from any eavesdropping, so the main solution used is the cryptography. Nevertheless, the classical cryptography suffers from some limits that make it vulnerable in front of some kind of attacks like "attack by dictionary" or "exhaustive attack". In the other hand, the miniaturisation in processor industry (Moor's law) causes interferences. For that purpose and other new field appear to overcome that kind of problem. That is "Quantum cryptography". In the present paper we will present an enhanced proposition of integration the QKD in the 802.11i.
Security of data is one of the most important factors to take into account while elaborating any information system, especially when the information is transmitted over a wireless network like one of a company, a factory, a campus, or more importantly a battlefield. In those cases information becomes much more sensitive and must be secured via encryption algorithm. Whether the encryption is done using symmetric or asymmetric algorithm we have to deal with the main problem of key distribution. Quantum mechanics provide a new paradigm that can address effectively the classical problem of key distribution. The main idea of this work is about how to integrate the QKD (Quantum Key Distribution) in the IEEE 802.11i standard to improve the security of data transmitted over a wireless network, by enhancing the encryption key distribution phase.
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.
Quantum cryptography is considered as a promising solution towards absolute security in long-term cryptosystems. While the application of quantum cryptography in fiber networks has significant advances, research on the application of quantum cryptography in mobile networks is still premature. In this paper, we analyze the interests of using quantum technique for the distribution of encryption keys in 802.11 wireless networks. We also propose a scheme for the integration of quantum cryptography in 802.11i security mechanisms for the establishment of the PTK (pairwise transient key).
Quantum cryptography is an emerging technology in which two parties may simultaneously generate shared, secret cryptographic key material using the transmission of quantum states of light. Key distribution is the problem of classical cryptography algorithm, and tends to provide safe channel to transport key. Quantum cryptography could distribute key in quantum channel. Eavesdropper can not access to key on quantum channel. If Eve attack on quantum channel QBER increases and she is detected. While the application of quantum cryptography in fiber network has significant advances, research on the application of quantum cryptography in mobile networks is still premature. In this paper, we analyze the interests of using quantum technique for the distribution of encryption keys in 802.11 wireless networks. We also propose a scheme for the combination of quantum cryptography and 802.11i security mechanisms for the establishment of the PTK (Pairwise Transient Key).
Abstract — There are a large variety of kinds of mobile wireless networks, Wi-Fi, based on the IEEE 802.11 standard, is a wireless local area network, mainly used in offices and campus at universities or in meeting rooms. For such limited coverage area, IEEE 802.11 standard may be observed as building oriented environment, which potentially offers a chance to let quantum key distribution (QKD) play a role in the security of wireless communications. In fact, secured data transmission is one of the prime aspects of wireless networks as they are much more vulnerable to security attacks. We can explore the possibility of using Quantum Key Distribution (QKD) for authentication and data encryption for IEEE 802.11 standard. Quantum key distribution is based on the laws of quantum physics which ensure that nobody can measure a state of an arbitrary polarized photon carrying information without introducing disturbances which will be detected by the legitimate user. In the new protocol (BB84) the existing 4-way handshake of IEEE 802.11 has been replaced with the QKD based 4-phase handshake. In the BB84 protocol each photons carry only one bits. So to improve the efficiency in Efficient High Capacity Quantum Cryptography based Key Distribution in WI-FI Network each photons carry two bits. The channels used in the QKD are quantum channel and classical channel. The polarized photons are transmitted through the quantum channel and the classical channel deals with recovering identical secrete keys at both ends. The classical channel comprises of four stages, namely Sifting, Error Estimation, Reconciliation and Privacy Amplification. The Quantum Bit Error Rate (QBER) is the measurement of the error probability in the key distributed via the quantum channel. This value allows the users to
Extensive studies have been undertaken on quantum cryptography, which offers unconditionally secure communication based on quantum mechanics, since it was noted that quantum computers could break public key cryptosystems based on number theory. Now there is a strong need of research to exploit this technology in the existing communication networks. 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. There are a large variety of kinds of mobile wireless networks, Wi-Fi, based on the IEEE 802.11 standard, is wireless local area network and due to the limited coverage area, this environment potentially offers a chance to let quantum key distribution (QKD) play a role in the wireless communication. In this paper, we propose a technique of integrating quantum cryptography in 802.11 to provide a secure service of authentication. It is based on integrating QKD in the EAP-TLS conversation to enhance the security of the authentication process.