V2EX public key

Public Key

释义 Definition

公钥:在公钥密码体系(非对称加密)中公开发布的一把密钥,用于加密数据验证数字签名;与之配对的私钥由持有者保密,用于解密数据生成数字签名。(也常指某个账户/设备对外公布的加密身份标识之一。)

发音 Pronunciation

/pblk ki/

例句 Examples

A public key can be shared with anyone.
公钥可以与任何人共享。

To verify the message wasn’t altered, the server checks the signature using the sender’s public key.
为确认消息未被篡改,服务器会使用发送者的公钥来验证签名。

词源 Etymology

public 源自拉丁语 publicus(“公共的、公开的”),key 源自古英语 cēg(“钥匙;关键之物”)。在密码学语境中,key 从“开锁的钥匙”引申为“解密/加密的关键参数”,因此 public key 指“公开可用的密钥”。

相关词 Related Words

文学作品 Literary Works

  • Cryptonomicon Neal Stephenson
  • The Code Book Simon Singh
  • Applied Cryptography Bruce Schneier
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