【正文】 要分析網(wǎng)絡的安全目標、安全風險、安全需求、安全策略等；其次，分類研究了電子政務網(wǎng)絡安全解決方案。電子政務系統(tǒng)歷來被視為公開、廉潔、科學、高效等行政辦事和行政決策機構(gòu)建立的手段，同時它也促進了政府職能的轉(zhuǎn)變和辦事效率的提高。電子政務系統(tǒng)作為一個相對獨立的專用信息系統(tǒng)，對系統(tǒng)網(wǎng)絡的安全性影響不小，它的外網(wǎng)與外部緊密關(guān)聯(lián)又相互交流且信息一般在內(nèi)，內(nèi)部和外部均可以造成無意的泄密和惡意的攻擊。包括訪問的控制、物理的安全、數(shù)據(jù)的保護、通信的加密、病毒的防護、安全的審計和安全的管理等方面；最后，周密規(guī)劃網(wǎng)絡安全的全局解決方案。important means of the policymaking agency and so on. The security problem is very important, the security solution of the special information system in Government also is very important ,they all discussed in this article. For the threat ,which againsting the information system in the Government of shenyang , es from inside and outside of system .Usually ,how to keep the security of work is a very difficult thing ..Integer solution of Government works security aiming at hidden the trouble of work security , which is studied thoroughly in paper, such as sensitivity data may be revealed or modified, host puter of Government work may be attacked by illegal in break, etc.At first, an integer solution of a unit’s work security Loudi are briefly designed , which through the analysis of risk , acquirement as an applying instance The second, the integer solution of Government work security are analyzed., which is classified as physical security, security audition, security backup , data protection, munication secret, virus protection, etc Lastly, the security of 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(jié)構(gòu) ........................................................................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(jié)構(gòu) ....................................................................4 技術(shù)體系 .......................................................................4 機構(gòu)體系 .......................................................................5 管理體系 .......................................................................6 網(wǎng)絡安全技術(shù) ........................................................................6 防火墻技術(shù) .....................................................................6 數(shù)據(jù)加密技術(shù) ...................................................................9 數(shù)字簽名技術(shù) ..................................................................11 公共密鑰體制技術(shù) ..............................................................11 SSL 協(xié)議技術(shù) ..................................................................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(jié)構(gòu) ......................................................................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(jié) ...............................................................................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(jié) ..............................................................