Abstract:

Aiming at the poor generality for most models of security evaluation, a novel security evaluation model of information system was established based on the grey clustering theory. The evaluation of system security state using grey clustering decision-making method was put forward. The grey classes of system security state were given, and the whitenization weight function of grey classes was formulated. This model’s application was illustrated by an evaluation example, and the stability and reliability of evaluation results were analyzed according to the conception of sensitivity.

Key words: security evaluation, grey clustering evaluation, sensitivity analysis