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#IC697MEM731#
#IC697MEM731# 價(jià)格:88  元(人民幣) 產(chǎn)地:美國(guó)
最少起訂量:1個(gè) 發(fā)貨地:福建廈門
上架時(shí)間:2018-08-21 14:59:46 瀏覽量:200
廈門光沃自動(dòng)化設(shè)備有限公司  
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IC697MEM731

IC697MEM731

IC697MEM731


在 DNC 系統(tǒng)服務(wù)器上部署可信計(jì)算平臺(tái)。DNC 系統(tǒng)服務(wù)器是連接辦公網(wǎng)和數(shù)控機(jī)床的關(guān)鍵節(jié)點(diǎn),下達(dá)來(lái)自辦公網(wǎng)的指令到數(shù)控機(jī)床網(wǎng)絡(luò),上傳數(shù)控機(jī)床數(shù)據(jù)和狀態(tài)信息到辦公網(wǎng)絡(luò)。其運(yùn)行平臺(tái)可信性至關(guān)重要?尚庞(jì)算平臺(tái)以可信計(jì)算模塊( TPM,Trus-ted Platform Module) 為核心,以密碼和驗(yàn)證技術(shù)作為信任鏈,確?刂朴(jì)算平臺(tái)可信安全?尚庞(jì)算平臺(tái)主要用于事前監(jiān)控,認(rèn)證合法系統(tǒng),確保平臺(tái)可控。拒絕安全事件發(fā)生后對(duì)設(shè)備層的非預(yù)期控制。

  其次,在 DNC 數(shù)控網(wǎng)絡(luò)上部署可信數(shù)據(jù)防護(hù)機(jī)制,對(duì)數(shù)控系統(tǒng)核心數(shù)據(jù)進(jìn)行保護(hù),如圖 4 所示。

圖 4 可信數(shù)據(jù)防護(hù)機(jī)制

  在控制網(wǎng)總線上動(dòng)態(tài)構(gòu)建類似于 VPN 的通信隔離環(huán)境來(lái)保證設(shè)備控制數(shù)據(jù)不被泄漏。結(jié)合可信計(jì)算和虛擬化技術(shù),在 DNC 數(shù)控網(wǎng)絡(luò)上構(gòu)建虛擬機(jī)系統(tǒng),建立敏感數(shù)據(jù)安全保護(hù)域(SPDSecureProtection Do-main) ,通過(guò)將敏感數(shù)據(jù)綁定在安全域內(nèi),根據(jù)數(shù)據(jù)的保護(hù)預(yù)期對(duì) DNC 數(shù)據(jù)訪問(wèn)請(qǐng)求進(jìn)行安全驗(yàn)證和策略控制,阻止不可信進(jìn)程對(duì)數(shù)據(jù)的讀寫操作和傳遞到不可信區(qū)域,從而實(shí)現(xiàn)數(shù)據(jù)防泄漏功能。對(duì)不可信的進(jìn)程傳遞給惡意代碼檢測(cè)服務(wù)器,查驗(yàn)惡意入侵行為?尚盘摂M數(shù)據(jù)防護(hù)機(jī)制主要用于事前監(jiān)控、安全隔離,事中入侵檢測(cè),事后審計(jì)查驗(yàn)。第三,在辦公網(wǎng)絡(luò)上部署可信網(wǎng)絡(luò)服務(wù)器。動(dòng)態(tài)運(yùn)行中,可信節(jié)點(diǎn)具有一定的智能性,其可信與行為動(dòng)作相關(guān),信任理論就是解決行為可信的有效方法,根據(jù)節(jié)點(diǎn)歷史表現(xiàn)確定可信值,大于可信閾值的節(jié)點(diǎn)才能參與服務(wù),從而隔離惡意節(jié)點(diǎn)?尚啪W(wǎng)絡(luò)主要用于事中檢測(cè),結(jié)合入侵防御、惡意代碼防御,為審計(jì)提供證據(jù)。基于上述三個(gè)方面,建立數(shù)控系統(tǒng)可信防護(hù)模型。配合傳統(tǒng)數(shù)據(jù)防護(hù)和系統(tǒng)防護(hù)技術(shù),實(shí)現(xiàn)數(shù)控系統(tǒng)數(shù)據(jù)安全和系統(tǒng)安全。





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SAM/Hitachi SFC1470F 500 SCCM Mass Flow Controller(NEW)

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