● 某 Web 网站向 CA 申请了数字证书。用户登录该网站时,通过验证 (42) ,可确认该数字证书的有效性,从而 (43) 。 (42) A. CA的签名 B. 网站的签名 C. 会话密钥 D. DES密码 (43) A. 向网站确认自己的身份 B. 获取访问网站的权限 C. 和网站进行双向认证 D. 验证该网站的真伪
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【单选题】I'm 13 years old and my sister is 15 years old. So my sister is
【简答题】按要求写句子。 1. My sister is 1.6 metres tall. I'm 1.3 metres tall. (用than将句子合并) My sister is _____________ _____________ I. 2. How does your mother go to work? (用by bike回答) She _____________ to work ______...
【简答题】句型转化。 1. My sister is ill.I must take care of her at home. (改为同义句) My sister is ill.I must ________ ________ her at home. 2. Lin Tao helps me with my Chinese every day .(就画线部分提问) ________ ________ do...