Research on authentication mechanism of Cyberspace based on signature of knowledge

With the development and application of communication, Cyberspace is becoming more and more popular with many organizations, but it has brought safety risk. Cyberspace security has become the key problem of restricting the development of it. The paper has a deep research of Cyberspace structure and Cyberspace security, proposes a authentication protocol for Cyberspace based on Signature of knowledge, including intra-domain authentication mechanism and inter-domains authentication mechanism. This method using the concept of Signature of knowledge can obtain an effective safe strategy. The multi-domain hash tree is built to Ensure inter-domain security. At the same time, symmetrical key algorithm and public key algorithm are just combined to reduce the authentication delay effectively and increase the network lifetime and enhances the security of the networks. Moreover, because of using signatures of knowledge, the number of hash is reduced, the power which notes consume is debased, and the network load is decreased. The performance of the system is discussed, and the encryption method has high efficiency and high security.