Mobility

The Design of a Secure Key Management System for Mobile Ad Hoc Networks

Date Added: Nov 2009
Format: PDF

Key management is an important service for providing secure communications when the network size is large or the topology is undergoing frequent changes. In most existing key management schemes, a centralized key certification authority is used; however, it is not suitable for wireless environments due to the networks' scalability and the insufficient computation ability of mobile nodes. In this paper, a novel key management scheme is presented that emphasizes the secure and efficient key updates by using a frequency-based approach. Furthermore, the authors' scheme makes use of a combination of both symmetric and asymmetric key algorithms to protect other aspects of key management, such as data confidentiality, key distribution, etc.