期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2011
卷号：8
期号：2
出版社：IJCSI Press
摘要：Securing mobile ad hoc networks (MANETs) is a crucial task for their good deployments. One fundamental aspect of providing confidentiality and authentication is key management. While Public Key Infrastructure (PKI) based solutions has provided these properties historically, MANETs are resource constrained and benefit from symmetric key encryption. In this paper, we proposed a certificateless efficient group key management scheme (CE-GKMS) in MANETs for group confidentiality which uses identity based cryptography for secure multicast group communication. The scheme does not need PKI in which mobile nodes needs large storage to carry certificates and to perform public key cryptography based large computation. The scheme introduced a new idea of hiding the public keys and making them visible only to the trusted nodes which not only make it difficult for cryptanalyst to crack the private information but also permit to keep small value of encryption and decryption component causes asymmetric cryptography operation faster. For scalability and dynamic reconfigurability, we divide the network into groups. Leaders in these groups securely communicate with each other to agree on group key in response to membership change and member mobility-induced events. The performance results prove the effectiveness of our proposed key management scheme CE-GKMS.
关键词：Network Security; MANETs; Group Confidentiality; Key Management
