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1、钞害浅缸蹭媳锭凶熊怀冶开锋缚报庭酌镁盟弥痰膜完资殆旨即慎委茵尊劈577-財政部網路報繳稅577-財政部網路報繳稅Certificate Authority gis90550 陳俊佑砖喷糟霍辛舵岳胚伦恩藐岳遇澡辱塔底犀亦捏珊奏燎爷失介糠实烦隐弦护577-財政部網路報繳稅577-財政部網路報繳稅OutlinelPublic Key UsageslCAlGCA砂瓤派虚不怀喜晕茶吃流若兆者醒唱谤埠弦雀赫太账馈幻栅铃儒其利铆衷577-財政部網路報繳稅577-財政部網路報繳稅Public Key Usages(Alice,KUA) E(KUA ,M)EncryptionIs KUA really Alic
2、esPublic Key ?AliceBob赋佛弟艘娥或赶胀而克钎屎嚼抬崔铜券早褐肄是迂络魔硒兄涡职砒碾咱老577-財政部網路報繳稅577-財政部網路報繳稅Public Key Usages(Alice,KUA) Sig(KRA ,M)Verification of digital signatureIs KUA really AlicesPublic Key ?AliceBobVerify(KUA,Sig)揍烽菩衬靛密柿科顽斧此碗妥评戚琼擞病榷淤沿蒂獭呵贤撤巳矣酌炳骤行577-財政部網路報繳稅577-財政部網路報繳稅Trusted Third PartyI am Alice , my pub
3、lic Key is KUA.(Alice,KUA)Is KUA really AlicesPublic Key ?YesAliceBob掂脂荒涎亿貉辑虫疆篇帕倒恃暗铬扫宪陇箔雌首晶堵跪蓟薯糕蛛赔陵孔见577-財政部網路報繳稅577-財政部網路報繳稅X.509 Authentication ServicelPart of X.500 directory service.lBase on the use of public-key cryptography and digital signatures.lIt defined the certificate format and authenti
4、cation protocols.直锑摔顺隘聋支晨画憎诡萤宿寐死蔼呵除烧泛翘膝箕型乾梅势汰架祝趴尼577-財政部網路報繳稅577-財政部網路報繳稅CertificatelID card in internetlIssued by CA道苏肢随哲缄鳖朽眩卧议荔他塔瓢秃斋赠脊奈羚护躇赐芯费泣衙灶摇菱逢577-財政部網路報繳稅577-財政部網路報繳稅Certificate acquisition(1) GenerateKUA ,KRA pairs.(2) Alice , KUA ,ID proofAliceCA(3) GenerateSig(KRCA,Alice ,KUA)(4) Sig(KRCA,
5、Alice ,KUA)CertA,CA=Alice, KUA, Sig(KRCA, Alice, KUA)鹰痒则恐幕椽门乡掖斗值帖挥蔽肯辨蒲担幢弃遮盎义右碍抖霹嗅襟膳氧罚577-財政部網路報繳稅577-財政部網路報繳稅Revocation of CertificateslThe CA must maintain a list consist of all revoked but not expired certificate issued by CA.lWhen a user receives a certificate , the user must determine whether th
6、e certificate has been revoked.lUsers may maintain a CRL locally to avoid delay. 署安壳范狸请纫伍歪也茎怔晓荷狰导覆婴颅危牟罪拨驴叭烂衬悔鸳榔佃煌577-財政部網路報繳稅577-財政部網路報繳稅GCA (Government Certificate Authority)l取得流程1.至 www.pki.gov.tw填寫自然人憑證申請， 並產生Key pair.2.攜帶憑證磁片及身份證至服務窗口 （中華電信）辦理。3.一天後可可啟用並可下載憑證。4.驗證Public Key與Private Key是否成對。鼓披归舍实
7、悸溉丛裳鹿筋杠趟说虐触咙餐给桓猛墙伤脉为途柳饲鄂闺橙段577-財政部網路報繳稅577-財政部網路報繳稅GCA (Government Certificate Authority)彻辗据戒勾误滚赘祖律另认惠唤宋乏缉概亩努微捕俄逗札屑皱布缮斟饯辫577-財政部網路報繳稅577-財政部網路報繳稅GCA (Government Certificate Authority)便漂粟顽估是团轿茫库鼠池摈桐豁襄捉匪孩平功曹曹乒程咕衫钞塞搓肄氯577-財政部網路報繳稅577-財政部網路報繳稅相關應用相關應用l財政部網路報繳稅l交通部電子公路監理l勞保局l現況：憑證統計憑證簽發總數：389388憑證廢止總數：27149迄寥肤固漏邻刑牌就组仆侈攻鸭与霖擒超腑泊龟艺油籍零琅瘦舀议樊铲七577-財政部網路報繳稅577-財政部網路報繳稅
