2. 计算机
  3. Symmetric，or private-key，encryption is based on a secret key that is shared by both communicating parties．The___________(71)part

Symmetric，or private-key，encryption is based on a secret key that is shared by both communicating parties．The___________(71)part

admin2016-11-11  51
问题 Symmetric，or private-key，encryption is based on a secret key that is shared by both communicating parties．The___________(71)party uses the secret key as part of the mathematical operation to encrypt _____________(72)text to cipher text．The receiving party uses the same secret key to decrypt the cipher text to plain text．Asymmetric，or public•key，encryption uses two different keys for each user：one is a ____________(73)key known only to this one user；the other is a corresponding public key，which is accessible to anyone．The private and public keys are mathematically related by the encryption algorithm．One key is used for encryption and the other for decryption，depending on the nature of the communication service being implemented．In addition，public key encryption technologies allow digital____________(74)to be placed on messages．A digital signature uses the sender’S private key to encrypt some portion of the message．When the message is received，the receiver uses the sender’s____________(75)key to decipher the digital signature to verify the sender’S identity．
(73)
选项 A、plain
B、cipher
C、public
D、private
答案D
解析
转载请注明原文地址:https://kaotiyun.com/show/LRQZ777K
本试题收录于： 网络规划设计师上午综合知识考试题库软考高级分类
0

网络规划设计师上午综合知识考试

软考高级

相关试题推荐
随机试题
最新回复(0)