首页
登录
从业资格
Digital certificate is an identity card
Digital certificate is an identity card
资格题库
2022-08-02
80
问题
Digital certificate is an identity card counterpart in the ( 请作答此空) society. When a person wants to get a digital certificate, he generates his own key pair, gives the ( ) key as well as some proof of his identification to the Certificate Authority (CA). CA will check the person's identification to assure the identity of the applicant.If the applicant is really the one “who claims to be”, CA will issue a digital certificate, with the applicant's name, e-mail address and the applicant's public key, which is also signed digitally with the CA's ( ) key. When A wants to send B a message, instead of getting B's public key, A now has to get B's digital certificate. A first checks the certificate authority's ( ) with the CA's public key to make sure it's a trustworthy certificate. Then A obtain B's public key from the certificate, and uses it to ( ) message and sends to B.A.computerB.humanC.materialisticD.relation
选项
答案
A
解析
数字证书相当于电脑世界的身份证。当一个人想获取数字证书时,他生成自己的一对密钥,把公钥和其他的鉴定证据送达证书授权机构CA,CA将核实这个人的证明,来确定申请人的身份。如果申请人确如自己所声称的,CA将授予带有申请人姓名、电子邮件地址和申请人公钥的数字证书,并且该证书由CA用其私有密钥做了数字签名。当A要给B发送消息时,A必须得到B的数字证书,而非B的公钥。A首先核实带有CA公钥的签名,以确定是否为可信赖的证书。然后,A从证书上获得B的公钥,并利用公钥将消息加密后发送给B。
转载请注明原文地址:https://tihaiku.com/congyezige/2414324.html
本试题收录于:
中级 信息安全工程师题库软件水平考试初中高级分类
中级 信息安全工程师
软件水平考试初中高级
相关试题推荐
Almostall( )havebuilt-indigitalcame
Certificatesare()documentsattestingt
Certificatesare()documentsattestingt
Certificatesare()documentsattestingt
Certificatesare()documentsattestingt
Certificatesare(请作答此空)documentsattesti
Almostall()havebuilt-indigitalcame
Digitalcertificateisanidentitycard
Digitalcertificateisanidentitycard
Certificatesare(71)documentsattesting
随机试题
Morethan40yearsago,LeeKuanYew【B1】______whatwasapoor,decayingco
类脂主要有()。A.磷脂 B.脂肪酸 C.糖脂 D.甘油三酯
缓解急性心肌梗死疼痛的最有效药物是A.硝酸异山梨醇酯(消心痛) B.硝酸甘油
根据《区域性股权市场自律管理与服务规范(试行)》,下列关于证券公司开展区域性股权
善于清相火,退虚热的药物是()。 A.黄芩 B.黄柏 C.黄连 D.银花
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
管理理论中的木桶定律是讲一只水桶能装多少水,完全取决予它最短的那块木板。这就是说
某交易者在3月20日卖出1手7月份大豆合约,价格为1840元/吨,同时买入1手9
属于非核苷类逆转录酶抑制剂的抗HIV药物是A.替诺福韦 B.利托那韦 C.拉
根据票据法律制度的规定,下列各项中,属于汇票保证绝对记载事项的()。A.“保证”
最新回复
(
0
)