描述

HIMA F8650E

在一定程度上，保持系統(tǒng)簡單就意味著要智能地再利用已有資源，以避免增加設(shè)計(jì)的復(fù)雜性。每個(gè)系統(tǒng)都有“重要安全參數(shù)(CSP)”的機(jī)密，必須保持其完整性，從而確保系統(tǒng)完好無缺。在智能電表或支付終端中，這一CSP是一個(gè)密鑰，必須在編程到內(nèi)存時(shí)就得到保護(hù)。這就涉及電表多次未通電的情況，通常稱為篡改檢測(cè)。根據(jù)攻擊者希望得到的最終結(jié)果，篡改有多種形式。有時(shí)候，黑客僅需要通過破壞設(shè)備來中斷運(yùn)行而并不需要盜取CSP就能夠?qū)崿F(xiàn)目標(biāo)。中斷設(shè)備運(yùn)行通常較為簡單，因?yàn)槠淇赏ㄟ^多種方式實(shí)現(xiàn)。根據(jù)智能電網(wǎng)決策者的一項(xiàng)最新調(diào)查結(jié)果顯示，中斷設(shè)備運(yùn)行與盜取密鑰所帶來的后果一樣嚴(yán)重或者更糟(圖4)。出于這一原因，計(jì)量工程師必須像確保安全性那樣付出同樣多的努力確保電表不會(huì)被輕易破壞。因此，每個(gè)電表都需要進(jìn)行加密和篡改檢測(cè)功能，并且它們需要完美協(xié)同工作，以便提供既能減少成本又能使電表在現(xiàn)場運(yùn)行數(shù)十年的出色解決方案。Sentry安全模塊正是應(yīng)對(duì)這一挑戰(zhàn)的最佳方案，因?yàn)榇鎯?chǔ)CSP的理想存儲(chǔ)器是在器件當(dāng)中，這一存儲(chǔ)器可與模塊內(nèi)或電表內(nèi)已有的、用于篡改檢測(cè)所必需的傳感器直接相連。而這些傳感器可監(jiān)控運(yùn)動(dòng)、溫度、溫度變化及磁場，甚至燈光，從而能夠幫助防止多種攻擊途徑。通過將所有這些技術(shù)集成到與備用電池安全相連的模塊，Sentry安全模塊不僅降低了總體功耗，還將所有的關(guān)鍵備份活動(dòng)集合到單一的優(yōu)化位置中。這不僅縮小了安全差距，簡化了設(shè)計(jì)考慮因素，還降低了電表其他區(qū)域?qū)O低備用電源的需求。

產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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