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Mobile ad hoc network is a new multi-hop wireless communication network. It has wide application, but it is exposed to kinds of security threats. Key management is vital important in ad hoc network security research field. Firstly the related work about key management in mobile ad hoc network is analyzed, and then an algorithm is proposed based on identity-based generalized signcryption. Lastly a suitable key management scheme is put forward based on generalized signcryption and threshold cryptograph. This scheme not only saves the user's storage, but also decreases the communication and computation overhead because of generalized signcryption. The detailed key generation and key update schemes ensure the scheme's availability.
Date of Conference: 13-14 Oct. 2010