Abstract:

To improve the service ability under hostile intrusion, intrusion tolerance technology was studied and an improved intrusion tolerance model was built. Intrusion tolerance ability was mainly quantified and discussed by the model. Conceptions of Intrusion Tolerance Degree, Integrity Degree and Security Degree were proposed. Some correlated factors which can influence Intrusion Tolerance Degree were analyzed. And quantizing simulation and solution were carried out. The conclusion showed that it was meaning to design intrusion tolerance system.

Key words: Intrusion Tolerance, Intrusion Tolerance Degree, Integrity Degree, Security Degree, Redundancy Technology.