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Title |
Private Channels in Wireless Local Networks |
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Author |
Maurizio Adriano Strangio |
| Citation |
Vol. 6 No. 8 pp. 99-105 |
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Abstract |
This paper presents a modified version (DHBT-E) of an existing two-party key agreement protocol (DH-BT) used for efficiently establishing secure communication sessions in local wireless networks. A formal security analysis in the model of Bellare and Rogaway is provided to justify the relevant security properties and thus to enforce trustworthiness. The basic intuition is that key agreement in a wireless network should provide forward secrecy, since eavesdropping is essentially for free in open-air-networks and hence gives the adversary a small but significant advantage. For this reason, the protocol uses basic Diffie-Hellmann key exchange. Entity authentication is based on the shared string model, with the key formed by a cryptographic key and eventually a low-entropy human memorable string, thus guaranteeing a stronger level of security |
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Keywords |
Wireless networks, Diffie-Hellman key exchange, Symmetric key authentication, Key agreement protocol |
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