15.5.2 生成密钥对

15.5.2  生成密钥对

SSH提供了ssh-keygen工具来生成密钥对，使用-t选项指定密钥类型。通常采用SSH的rsa密钥。

 

$ ssh-keygen -t rsa                                    ##生成SSH密钥对

Generating public/private rsa key pair.

Enter file in which to save the key (/home/lewis/.ssh/id_rsa):

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /home/lewis/.ssh/id_rsa.

Your public key has been saved in /home/lewis/.ssh/id_rsa.pub.

The key fingerprint is:

d8:f9:24:15:c4:60:a7:3e:7a:2e:1a:64:c3:42:d1:76 lewis@lewis-laptop

 

该命令会在用户主目录下的.ssh目录中生成两个文件。其中，id_rsa是私钥文件；对应的id_rsa_pub是公钥文件：

 

$ ls /home/lewis/.ssh/

id_rsa  id_rsa.pub  known_hosts