Abstract
Motivated by the fact that the existing FMIPv6 security scheme has several weaknesses in terms of security and efficiency, we propose a security-enhanced fast mobile IPv6 in this letter. Based on the concept of a secret key-based CGA (Cryptographically Generated Address), we show how to establish a new security association between the MN and AR (Access Router) whenever a handover occurs. We also show that the proposed scheme is robust against several types of security attacks feasible with the existing scheme. Our scheme is more efficient in that it requires fewer public key operations.
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