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  • How To Generate SSH And GPG Keys

    Posted by Mohit Shakya | Last Updated: 05-Jan-18

    Hi,

    In this blog we'll be going through how to generate SSH/GPG keys.
    Following are steps:


    -> At your console type command

    $ ssh-keygen
    

    ( you may also customize the parameters some of them are specified at the end of this blog )
    -> there will be a prompt to enter file path

    $ <enter_path_of_file> 
    

    (you may also skip this blank, but in that case this'll override your default system generated keys @ [ ~/.ssh/id_rsa ])
    -> there will be a prompt for passphrase

    $ <enter_passphrase> 
    

    (you may also skip this blank, skipping this blank avoid the passphrase entry at key loading time)
    -> Now Your final key files pair will be available in either your specified directory or in [ ~/.ssh/id_rsa ]

     

    There will be two files:
    1. public key file: '<file_name>.pub' ( this is your public key file )
    2. private key file: '<file_name>'  (this is your private key file, will be great to store it with some extention like .pem or .pvt to differentiat [ not in ~/.ssh/id_rsa ])

    Also you can customize your generated key using following options too:

    $ ssh-keygen -t <crypto_altorithm> -b <bits_length>
    

     

    crypto_algorithm: supported algorithms are [ dsa | ecdsa | ed25519 | rsa | rsa1 ]
    bits_length:    it is key bits length, it may be 1024/2048/4096

    i.e.:

    $ ssh-keygen -t rsa -b 2048
    

     

    I hope this will be helpful for you.

    Thanks.

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