问题
填空题
信息认证是保证信息安全的重要手段，它指信息接收者能够检验发送者的真实性和收到消息的______。
答案
参考答案：完整性
解析：[命题目的] 本题考查信息认证的基本概念。 [解题要点] 信息认证是通过技术手段验证信息发送者的真实性和信息的完整性。实现信息认证的技术手段主要有数字签名技术、身份识别技术和消息认证。
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信息认证是保证信息安全的重要手段，它指信息接收者能够检验发送者的真实性和收到消息的______。
参考答案：完整性
解析：[命题目的] 本题考查信息认证的基本概念。 [解题要点] 信息认证是通过技术手段验证信息发送者的真实性和信息的完整性。实现信息认证的技术手段主要有数字签名技术、身份识别技术和消息认证。
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| Teaching my first child, Danae, to share her toys was the biggest challenge. To 1 this, we started inviting other children to play, which could help Danae discover that it's 2 to share with others-a lesson I needed to 3 myself as well, as it 4 . One evening Danac had 5 a friend, Natalie, to play with her. Their favorite was a children's 6 game called Go Fish. That evening, 7 Natalie left, Danae came to me and said, "Mommy, I'd like to give these to Natalie tomorrow. They're her favorites." She help up three cards from the Go Fish game. I tried to 8 that I didn't want her to give them away because then our 9 wouldn't be complete. "But I really want her to have them!" Danae 10 . I thought perhaps she didn't understand that when she gave something away, it was gone 11 . So I tried again, saying, " 12 you give the cards to her, you can't 13 them back tomorrow." A look of 14 came over Danae's face. For a moment I was happy that she seemed to 15 . But then she smiled and said."Well, that's okay, I want her to have them anyway." What could I say to that? I sat 16 for a moment and then I realized I had been trying for so long to 17 her to share. Did it 18 that our Go Fish set would be 19 ? What mattered was that my daughter was learning the 20 of giving, that she was thinking about others instead of herself, and that she was trying to make her friends happy. Isn't that what life is all about? | ||||
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