Scalable and Efficient Key Management in LAN

As LAN has some limitations, pre-distribution of secret keys is possibly the most practical approach for secure network communications. In this paper, the authors propose a key management scheme based on random key pre-distribution for LAN. As large-scale networks suffer from high costs of communication, computation, and storage requirements, the LAN are preferred because they provide better performance and security solutions for scalable applications in dynamic environments. Most attacks on public-key systems will probably be aimed at the key management level, rather than at the cryptographic algorithm itself. Users must be able to securely obtain a key pair suited to their efficiency and security needs.