【正文】 Government work, consisting of requirement, security analysis of risk, target of Government are analyzed.The integer solution of work security is analyzed in the paper and is essentiality to the aspect of security, usability, controlling, auditing of work system, also can be used to improve building Egovernment of shenyang in different cities.Key words： EGovernment, Network Security, PKI, Digital SignatureI / 60目 錄摘 要 .................................................................................IABSTRACT ................................................................................II第 1 章　 緒 論 .........................................................................1 研究背景和意義 ......................................................................1 國內(nèi)外發(fā)展現(xiàn)狀 ......................................................................2 文章主體結構 ........................................................................3第 2 章　 基本理論及概念 ...................................................................4 基本概念 ............................................................................4 信息系統(tǒng)安全結構 ....................................................................4 技術體系 .......................................................................4 機構體系 .......................................................................5 管理體系 .......................................................................6 網(wǎng)絡安全技術 ........................................................................6 防火墻技術 .....................................................................6 數(shù)據(jù)加密技術 ...................................................................9 數(shù)字簽名技術 ..................................................................11 公共密鑰體制技術 ..............................................................11 SSL 協(xié)議技術 ..................................................................13第 3 章　 電子政務的網(wǎng)絡安全分析 ..........................................................15 安全風險分析 .......................................................................15 物理層方面 ....................................................................15 網(wǎng)絡層方面 ....................................................................15 ....................................................................16 ....................................................................16 管理層方面 ....................................................................17 安全需求分析 .......................................................................17 安全控制策略分析 ...................................................................18 層次結構 ......................................................................18 企業(yè)級的安全控制 ..............................................................19 應用級的安全控制 ..............................................................19 系統(tǒng)級的安全控制 ..............................................................20 網(wǎng)絡級的安全控制 ..............................................................21 安全目標分析 .......................................................................21 小結 ...............................................................................22第 4 章　 電子政務網(wǎng)絡系統(tǒng)的安全設計 ......................................................23 安全系統(tǒng)的設計原則 .................................................................23 綜合性的原則 ..................................................................23 一致性的原則 ..................................................................23 多步驟實施的原則 ..............................................................23 可評價性的原則 ................................................................24 安全方案的類型 .....................................................................25 物理的安全 ....................................................................25 系統(tǒng)的安全 ....................................................................26 訪問控制問題 ..................................................................26 通信的加密 ....................................................................28 入侵的檢測 ....................................................................29II / 60 數(shù)據(jù)的保護 ....................................................................30 安全的審計問題 ................................................................31 病毒的防護 ....................................................................31 備份的恢復情況 ................................................................32 安全的管理 ...................................................................33 小結 ...............................................................................35第 5 章　 電子政務網(wǎng)絡安全的解決方案 ......................................................37 沈陽市電子政務概況 ................................................................37 應用的特點 ....................................................................37 網(wǎng)絡的結構和網(wǎng)絡的威脅 ........................................................37 相關安全的解決方案 ................................................................39 安全解決方案中的物理層 ........................................................39 網(wǎng)絡訪問控制的解決方案 ........................................................40 網(wǎng)絡系統(tǒng)有關安全的解決方案 ....................................................43 網(wǎng)絡資源的管理解決方案 ........................................................44 網(wǎng)絡入侵的偵測方案 ............................................................45 用戶身份認證的安全處理方案 ....................................................465 . 網(wǎng)絡病毒防護的解決方案 .......................................................47 數(shù)據(jù)恢復安全的應對方案 ........................................................48 安全管理方面的解決方案 ........................................................50 小結 ...............................................................................50總 結 ...................................................................................52參考文獻 ................................................................................54致 謝 詞 .......................................................