Secure Transmission Services in Wireless Networks using Key Trees

In contrast with conventional networks, mobile networks usually do not provide on-line access to trusted authorities or to centralized servers for secure message transmissions and exhibit problems like frequent problems due to link-node failures and pricey issues. For these reasons, existing solutions for secure message transmission services in regular networks requireon-line trusted authorities or certificate repositories that are not well suited for securing mobile networks. To reduce computation overhead the core system is deployed at a Server and accessed via mobile nodes. In this paper, we propose a fully self-organized public-key management system that allows users to generate their key message pairs and cipher/decipher them(using RSA encryption), to issue access, to perform authentication regardless of the network partitions and number of users using Key Tree management schemes.