【正文】 ....................................................1 信息安全服務與機制 .........................................................................................2 安全服務 ..............................................................................................................2 安全機制 ..............................................................................................................3 安全體系架構 .....................................................................................................3 網絡安全基本模型 ..............................................................................................3 信息安全框架 ......................................................................................................3 信息安全起因 .....................................................................................................4 技術缺陷 ..............................................................................................................4 管理缺陷 ..............................................................................................................5 網絡攻擊方式 .....................................................................................................5 口令攻擊 ..............................................................................................................5 軟件攻擊 ..............................................................................................................6 竊聽攻擊 ..............................................................................................................7 欺詐攻擊 ..............................................................................................................7 病毒攻擊 ..............................................................................................................8 拒絕服務攻擊 ......................................................................................................8 信息安全后果 .....................................................................................................9 信息安全技術 .....................................................................................................9 PKI 體系 ...............................................................................................................9 用戶身份認證 ....................................................................................................12 認證機制 ............................................................................................................13 認證協議 ............................................................................................................153 聯網視頻信息的特點 ......................................................................................................17 系統多級架構 ...................................................................................................17 網絡狀況復雜 ...................................................................................................17 視頻數據量大 ...................................................................................................174 視頻系統信息安全分類 ..................................................................................................17 信令加密 ...........................................................................................................18 媒體流加密 .......................................................................................................185 安全系統的實現 ..............................................................................................................18 認證中心 ...........................................................................................................18 視頻安全平臺 .............................................................................................