Hung-Yu Chien, Chin-I Lee and Tzong-Chen Wu Comments on IMBAS: identity-based multi-user broadcast authentication in wireless sensor networks Security and Communication Networks 6
The identity-based multi-user broadcast authentication (called IMBAS) scheme for wireless sensor networks by Cao et al. is a very promising solution in terms of its scalability and efficiency. This article shows the security weaknesses and proposes our improvements, which are based on existing primitives that have been formally proved and ratified as standards. This approach ensures the security of the proposed solutions.
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