Registering SSH Keys for GIT Authentication - Video Example

This video shows the quick process one needs to go through for setting up ssh keys to authenticate to a remote GIT host provider, in this case GitHub:

Normally source code is not something that we want anyone to contribute and edit - unless it’s open source. So how do we go about authenticating who is allowed to read and write to the code in a GIT repository?

One convenient means of accessing GIT is via ssh keys. For that you need to generate a public-private key pair.

This is the typical workflow using ssh-keygen which is part of the openssl command line distribution - command line distributions exist for all the major platforms - windows, linux and Mac OS X.

parallels@parallels-Parallels-Virtual-Platform:~$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/parallels/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/parallels/.ssh/id_rsa.
Your public key has been saved in /home/parallels/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:qBFcPXg5kUnu7wVnTGKJ1oZTM+DAMD8WzYko9IN/+tQ parallels@parallels-Parallels-Virtual-Platform
The key's randomart image is:
+---[RSA 2048]----+
| .. o++B+B+      |
|  .+.++=%= +     |
|  ..= +.Bo* .    |
|   . + = + +     |
|    o o S . +    |
|     = . . +     |
|    o . E . .    |
|     o   . .     |
|      .   .      |
+----[SHA256]-----+

You then typically need to take the contents of .ssh/id_rsa.pub (the public key) and add it to a list of known keys under your profile for your git hosting provider like github, Bitbucket etc. The precise interface varies depending on which provider you use.

See public-private key encryption.