首页
登录
从业资格
Digital certificate is an identity card
Digital certificate is an identity card
最全题库
2022-08-02
63
问题
Digital certificate is an identity card counterpart in the ( ) 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 ( 请作答此空) 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.symmetricB.privateC.publicD.shared
选项
答案
B
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/2414342.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(请作答此空)documentsattesti
Almostall()havebuilt-indigitalcame
Almostall()havebuilt-indigitalcamer
Certificatesare()documentsattestingt
Digitalcertificateisanidentitycard
Digitalcertificateisanidentitycard
Digitalcertificateisanidentitycard
随机试题
It’snouse______alotofbookswithoutreadingthem.A、tobuyB、buyC、buyingD
It’smyhonortobeheretonight.OurorganizationiscalledtheNoiseA
[originaltext]M:Iattendacomputertrainingcoursetwiceaweek.Whynotjoin
In1993,womenheld46percentofthepayingjobsintheUnitedStates.[br]Aft
一般土质路基中,低路堤应对地基表层土()分层回填压实,其处理深度应不小于路
微程序控制器中,机器指令与微指令的关系是()A.每一条机器指令由一条微指令来执
某高度为k的完全二叉树中,所含叶子结点的个数最少为()。
临床上颞下颌关节盘前移位的病因不明,但最主要的是()A.关系 B.
证券公司应当自每月结束之日起( )个工作日内,报送月度报告。A.3 B.5
请简要分析班主任工作的基本任务和具体方法。
最新回复
(
0
)