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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. 209-215 |
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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 open-air-networks should provide forward secrecy, since eavesdropping is essentially for free and hence may give 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 two cryptographic component keys (one key being eventually a low-entropy human memorable string), thus guaranteeing a stronger (two-factor) level of security. |
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Keywords |
Wireless networks, Diffie-Hellman key exchange, Symmetric key authentication, Key agreement protocol |
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