まずはsshキーを作成します

bash-3.2$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/kuro/.ssh/id_rsa): 
Created directory '/Users/kuro/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /Users/kuro/.ssh/id_rsa.
Your public key has been saved in /Users/kuro/.ssh/id_rsa.pub.
The key fingerprint is:
10:ba:e7:a9:ca:14:0f:e1:18:23:b2:08:9e:b1:bb:69 kuro@kuro-no-macbook.local
The key's randomart image is:





[ RSA 2048]----+




    

    
      .          
    
    

    
     . .         
    
    

    
.. . .          
    
    

    
*+. . .         
    
    

    
+++ . . S        
    
    

    
  .+ o .         
    
    

    
 .. . o          
    
    

    
 Eo  .           
    
    

    
.oo..            
    




































+

















bash-3.2$ 

ちなみに -t オプションで鍵の作成方法を指定できます。