Abstract: In view of SOAP flooding attack threats to networks and services with the inherent protocol security vulnerability, especially the limitations of grey evaluation technology, the fuzzy evaluation method is studied according to the efficiency evaluations for the demand on network system security and reliability. Therefore, a fuzzy efficiency evaluation model for SOAP flooding attack is proposed, the focus of which is on attack evaluation matrix description, membership degree matrix selection, weight configuration and comprehensive evaluation. Moreover, the evaluation example with the SOAP flooding attack samples is presented on the basis of the proposed attack efficiency evaluation model. The results show that the fuzzy efficiency evaluation method for SOAP flooding attack has better adaptability than grey evaluation, and can draw the certain evaluation conclusions, as well as supply the scientific and sensible discrimination of attack efficiency.

Key words: basic discriplines of computer science and technology, fuzzy evaluation, SOAP flooding, attack efficiency