對網絡系統安全評估問題進行了研究，提出了一種評估網絡系統安全的新算法。該算法
基于代碼分析、協議分析、脆弱性檢測、認證檢1測等四種網絡安全缺陷發現技術，多角度查找網絡漏洞，并用似然估計算法量化檢測結果；同時算法中引入網絡容忍度測試，以保證評估結果的可靠性，并根據該算法給出了一個完整的網絡安全評估模型。
關鍵字：網絡安全，評估，脆弱性檢測，漏洞檢測
Abstract: Through searching the problem of network security evaluation, this paper
presents an algorithm to evaluate network security. Whit fuzzy mathematic, the
algorithm disposes the primary result which is base on code analysis, protocol
analysis, vulnerability analysis and authentication detection. At last, integrate
the object tolerant character, the final result was given. A whole network security
model base on this algorithm is presented also.
Keywords: network security evaluation, vulnerability analysis, vulnerability
detection.