Mac 生成ssh公钥

末蓝、 2023-06-22 13:40 3阅读 0赞

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*  什么是ssh
 *  查看ssh公钥是否存在
 *  创建ssh公钥

# 什么是ssh #

使用 SSH 协议可以连接远程服务器和服务并向它们验证。 利用 SSH 密钥可以连接 GitHub，而无需在每次访问时提供用户名或密码。

# 查看ssh公钥是否存在 #

cat ~/.ssh/id_rsa.pub

如果显示 `cat: /Users/********/.ssh/id_rsa.pub: No such file or directory` ，表示没有创建公钥，则需要自己创建公钥。

# 创建ssh公钥 #

（1）用 `ssh-keygen` 创建公钥：

xinna@sionas-MacBook-Air ~ % ssh-keygen           
    Generating public/private rsa key pair.
    Enter file in which to save the key (/Users/xinna/.ssh/id_rsa): 
    /Users/xinna/.ssh/id_rsa already exists.
    Overwrite (y/n)? y
    Enter passphrase (empty for no passphrase): 
    Enter same passphrase again: 
    Your identification has been saved in /Users/xinna/.ssh/id_rsa.
    Your public key has been saved in /Users/xinna/.ssh/id_rsa.pub.
    The key fingerprint is:
    SHA256:UmEi7XKNfPMu1ZkNPtJsGGkCyTrfOjTrF+IQAn7sqwE xinna@sionas-MacBook-Air.local
    The key's randomart image is:
    +---[RSA 2048]----+
    |    .o..o        |
    |.    .=o .       |
    |...  + +.  .     |
    | ..o= =.= + .    |
    |E o. *.oS= B =   |
    |.  .. =.o = X .  |
    | .  .+ = + o .   |
    |  ..  = o .      |
    | ..  ..o .       |
    +----[SHA256]-----+

它先要求你确认保存公钥的位置（.ssh/id\_rsa），然后它会让你重复一个密码两次，如果不想在使用公钥的时候输入密码，可以留空。

（2）使用`cat ~/.ssh/id_rsa.pub` 查看公钥：

xinna@sionas-MacBook-Air ~ % cat ~/.ssh/id_rsa.pub
    ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDkL0lFa+JqVPDiFeE2BvaMwWH496wkc7e+IVOZoJ+UzooK7B6/IBZ7HcBoHs8ckF3DdFpdJonwGkNFlCnpVDs+wxamdUgPqARJq7nEe5DeG5UQ4LCyZSwRA1OUOl/3gpAK+oYm/v11EgdGoajYJDUCTTp5fsSxaCl4s/Ym8uqUWR+Ba4Aoz117ka4i6yX1EiFfkv2ztbES+Lq9wNs57vK/ktoQmBLslGq2HqTt//WrJJkK2C0HlVSV9lkLZgH1qd5K7dxP1rY7IOrdwvhtwVUGE5V3fmBWGqnlZWJ2tkYczlnPWb0uX0FqP1qod8GZGBoJfgVhGShQBFMXdgqY+V9h xinna@sionas-MacBook-Air.local