2. 计算机
  3. Public　Key　Infrastructure(PKI)　service　providers　offer　organizations　fully　integrated　PKI-managed　services　designed　to　secure　In

Public　Key　Infrastructure(PKI)　service　providers　offer　organizations　fully　integrated　PKI-managed　services　designed　to　secure　In

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问题 Public　Key　Infrastructure(PKI)　service　providers　offer　organizations　fully　integrated　PKI-managed　services　designed　to　secure　Intranet,　Extranet,　Virtual　Private　Network(VPN),　and　e-commerce　applications.　PKI　solutions　can　enable　a　number　of　security　services,　including　strong　authentication　and　non-repudiation　of　transactions.eToken　enables　the　users　of　PKI　systems　to　generate　and　store(101)and　digital　certificates　inside　the　token,　creating　a　secure　environment　and　allowing　full　portability　and　maximum　ease　of　use.　eToken　Pro　can　also　perform　sensitive　on-chip(102)operations,　ensuring　that　users’　keys　axe　never　exposed　to　the　PC　environment,　eToken　eliminates　the　need　to　store(103)and　keys　on　a　hard　disk　or　browser　file,　or　to　transmit　them　across　the　Internet/Extranet;　assuring　peace-of-mind　and　confidence　during　online　communications.A　digital　signature　is　created　using　the　private　key　of　an　individual　to　ensure　the　Validity　of　his　request.　This　technology　can　be　used　to　guarantee(104)of　various　transactions.　The　strength　of　either　the　authentication　level　or　the　digital　signature　relies　on　the　level　of　protection　offered　to　the　private　key.　eToken　Pro　offers　the　maximum　level　of　security,　since　it　enables　the　use　of　the　private　key　for　signing　and　authenticating　inside　the　eToken.The　most　secure　use　of　authentication　involves　enclosing　at　least　one　certificate　with　every　signed　message.　The　message(105)verifies　the　certificate　using　the　CA’s　public　key.　If　the　sender’s　public　key　is　legitimate,　the　recipient　verifies　the　message’s　signature.　Digital　signatures　created　with　a　private　key　are　verified　with　the　digital　certificate　containing　the　public　key.
选项 A、messages
B、certificates
C、applets
D、passwords
答案B
解析
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