PCIE密碼卡

密碼安全(quan)(quan)(quan)芯(xin)片可以(yi)產生代(dai)表計算機(ji)平(ping)臺的(de)身(shen)份識別號(hao)。也就是說，每(mei)個(ge)平(ping)臺的(de)身(shen)份識別號(hao)都(dou)是，這樣每(mei)一臺安全(quan)(quan)(quan)PC就相當于(yu)有一個(ge)硬件“”，PCIE加(jia)密卡公司，以(yi)此來驗(yan)證用(yong)(yong)戶身(shen)份。這對(dui)(dui)于(yu)保(bao)(bao)護用(yong)(yong)戶數據安全(quan)(quan)(quan)而言，無(wu)疑多加(jia)了一層(ceng)保(bao)(bao)險。并且，密碼安全(quan)(quan)(quan)芯(xin)片可廣泛(fan)應用(yong)(yong)于(yu)對(dui)(dui)信息(xi)安全(quan)(quan)(quan)有著較(jiao)高(gao)要求(qiu)的(de)相關(guan)領域，滿足(zu)信息(xi)安全(quan)(quan)(quan)處理(li)中針對(dui)(dui)信息(xi)提出(chu)的(de)機(ji)密性、完整性、可用(yong)(yong)性、可控性等高(gao)安全(quan)(quan)(quan)性需求(qiu)。

PCIE密碼(ma)卡電源設計

在(zai)高速電(dian)(dian)(dian)(dian)路板的(de)(de)(de)(de)設(she)計(ji)(ji)中(zhong)，電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)系(xi)統(tong)的(de)(de)(de)(de)設(she)計(ji)(ji)直(zhi)接關系(xi)到整(zheng)個系(xi)統(tong)的(de)(de)(de)(de)成(cheng)敗。電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)、地所產生的(de)(de)(de)(de)噪聲(sheng)干(gan)(gan)擾要降到低限度，以(yi)保證產品的(de)(de)(de)(de)可靠性。采用(yong)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)式的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)分(fen)(fen)配(pei)方(fang)案，電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)通過整(zheng)個層(ceng)(ceng)的(de)(de)(de)(de)金屬來分(fen)(fen)配(pei)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，PCIE加密卡供應(ying)，能減(jian)小電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)阻(zu)抗和噪聲(sheng)，可靠性增強。由于PCB板涉及多(duo)種電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，需采用(yong)多(duo)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)的(de)(de)(de)(de)設(she)計(ji)(ji)，電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)可以(yi)作為噪聲(sheng)回路，PCIE加密卡，消除公共(gong)阻(zu)抗耦合(he)干(gan)(gan)擾。使用(yong)去(qu)耦電(dian)(dian)(dian)(dian)容(rong)可以(yi)解決電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)完整(zheng)性問(wen)題，因(yin)為電(dian)(dian)(dian)(dian)容(rong)只能放置(zhi)在(zai)PCB頂(ding)層(ceng)(ceng)和底層(ceng)(ceng)，所以(yi)連接去(qu)耦電(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)(de)走線要盡量短而寬(kuan)。根(gen)據(ju)芯片資料可估算通過該電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)線的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流，確定(ding)布線導線的(de)(de)(de)(de)寬(kuan)度，走線越(yue)寬(kuan)，載流能力越(yue)大(da)。

PCIE加密卡(ka)技(ji)術(shu)介紹

近年(nian)來，隨著(zhu)網(wang)(wang)(wang)絡和計算機(ji)技術的(de)(de)(de)迅猛發展(zhan)(zhan)，整個世界(jie)已經(jing)(jing)進入(ru)了(le)(le)(le)互(hu)聯(lian)(lian)(lian)網(wang)(wang)(wang)時代，互(hu)聯(lian)(lian)(lian)網(wang)(wang)(wang)的(de)(de)(de)方便(bian)(bian)快捷，PCIE加(jia)密(mi)卡(ka)哪家好，跨越時空的(de)(de)(de)特性(xing)給人(ren)類社(she)會帶來了(le)(le)(le)巨(ju)大(da)的(de)(de)(de)改變(bian)，影響(xiang)到了(le)(le)(le)社(she)會的(de)(de)(de)各個方面(mian)(mian)。人(ren)們開(kai)始利用(yong)這(zhe)一便(bian)(bian)捷的(de)(de)(de)基(ji)(ji)礎(chu)設(she)施改變(bian)傳統(tong)商務(wu)(wu)活動和辦(ban)公(gong)(gong)模式，進行(xing)電子(zi)商務(wu)(wu)、電子(zi)政務(wu)(wu)、網(wang)(wang)(wang)絡辦(ban)公(gong)(gong)。當前，B2C、B2B等(deng)電子(zi)商務(wu)(wu)活動已經(jing)(jing)相當普(pu)及，電子(zi)報(bao)稅、網(wang)(wang)(wang)上(shang)審批等(deng)電子(zi)政務(wu)(wu)平(ping)臺(tai)建設(she)發展(zhan)(zhan)的(de)(de)(de)如(ru)火如(ru)荼，互(hu)聯(lian)(lian)(lian)網(wang)(wang)(wang)成為(wei)企事業單位遠(yuan)(yuan)程辦(ban)公(gong)(gong)的(de)(de)(de)理想平(ping)臺(tai)。互(hu)聯(lian)(lian)(lian)網(wang)(wang)(wang)終端也(ye)從電腦擴(kuo)展(zhan)(zhan)到手機(ji)、平(ping)板等(deng)移動設(she)備(bei)，并(bing)有向(xiang)智能家居設(she)備(bei)擴(kuo)展(zhan)(zhan)的(de)(de)(de)趨(qu)勢。然而(er)，由于(yu)互(hu)聯(lian)(lian)(lian)網(wang)(wang)(wang)設(she)計的(de)(de)(de)開(kai)放(fang)性(xing)，導致(zhi)互(hu)聯(lian)(lian)(lian)網(wang)(wang)(wang)用(yong)戶面(mian)(mian)臨諸(zhu)多(duo)方面(mian)(mian)的(de)(de)(de)安全威脅：身份認證機(ji)制較(jiao)弱(ruo)，合法用(yong)戶容(rong)易(yi)被，無法控制資(zi)源的(de)(de)(de)訪問；攻擊(ji)者可以(yi)在線路上(shang)數(shu)(shu)據，甚至篡改數(shu)(shu)據后(hou)重新(xin)發布到網(wang)(wang)(wang)絡上(shang)。另外網(wang)(wang)(wang)絡應用(yong)還(huan)面(mian)(mian)臨拒絕服務(wu)(wu)，線路、破壞數(shu)(shu)據完整性(xing)、機(ji)密(mi)性(xing)等(deng)方面(mian)(mian)的(de)(de)(de)攻擊(ji)。這(zhe)些安全問題已經(jing)(jing)逐(zhu)漸成為(wei)影響(xiang)網(wang)(wang)(wang)絡應用(yong)進一步發展(zhan)(zhan)的(de)(de)(de)瓶頸(jing)。為(wei)了(le)(le)(le)解決(jue)這(zhe)些問題，業界(jie)開(kai)發了(le)(le)(le)各種網(wang)(wang)(wang)絡安全技術，以(yi)應對各種網(wang)(wang)(wang)絡安全威脅。如(ru)PKI(公(gong)(gong)鑰基(ji)(ji)礎(chu)設(she)施)，數(shu)(shu)據加(jia)密(mi)、數(shu)(shu)字(zi)簽(qian)名，虛擬網(wang)(wang)(wang)絡(VPN)等(deng)技術和產品可以(yi)有效(xiao)的(de)(de)(de)解決(jue)遠(yuan)(yuan)程身份認證和數(shu)(shu)據保(bao)密(mi)問題。對于(yu)一些關鍵行(xing)業，國(guo)家要求(qiu)必(bi)須使用(yong)硬(ying)件(jian)加(jia)密(mi)設(she)備(bei)，密(mi)鑰必(bi)須保(bao)存在硬(ying)件(jian)載體上(shang)，不能出現(xian)(xian)在系統(tong)內存中，因(yin)此密(mi)碼卡(ka)便(bian)(bian)應運而(er)生。目(mu)前現(xian)(xian)有的(de)(de)(de)普(pu)通密(mi)碼卡(ka)的(de)(de)(de)密(mi)鑰存儲區容(rong)量(liang)都比較(jiao)小(xiao)，大(da)多(duo)僅為(wei)1MB，遠(yuan)(yuan)遠(yuan)(yuan)無法滿足現(xian)(xian)實(shi)所需(xu)，并(bing)且還(huan)存在數(shu)(shu)據傳輸延遲、響(xiang)應速度慢的(de)(de)(de)問題。