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Concatenated wireless roaming security association and authentication protocol using ID-based cryptography

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4 Author(s)
Byung-Gil Lee ; Electron. & Telecommun. Res. Inst., Daejeon, South Korea ; Hyun-gon Kim ; Sung-Won Sohn ; Kil-Houm Park

The mobile IP application of AAA (diameter protocol) provides authentication, authorization, and accounting (AAA) services in a wireless roaming Internet service. As such, the current paper proposes the application of identity-based cryptography to mobile IP with AAA authentication, thereby facilitating the introduction of public key cryptography through allowing a mobile IP entity's public key to be derived from an arbitrary identification value, such as e-mail styled NAI (network access identity). The diameter security association (DSA) provides a PKI-based key delivery between AAA server of the visited and home ISP network. Therefore, the proposed method combines the use of the DSA with an identity (ID)-based cryptographic security association (ISA). Consequently, the proposed concatenated security association of the DSA for an inter-ISP trust chain and an ISA for mobile IP user authentication can alleviate the problem of ID-based private distribution for visited network entities and greatly reduce the need for an reliance on public key certificates for mobile nodes. Furthermore, the proposed protocol can also establish a security association among all mobile IP related nodes and AAA related nodes.

Published in:

Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual  (Volume:3 )

Date of Conference:

22-25 April 2003