If you plan to push/pull using SSH, you need to set up SSH keys. You want to do this (or cache your username and password, chapter 10), so you don’t have to authenticate yourself interactively with GitHub over and over again. I suggest you set up one of these methods of authentication on each computer you want to connect to GitHub from.

That generates a 2048-bit RSA key pair, encrypts them with a password you provide and writes them to a file. You need to next extract the public key file. You will use this, for instance, on your web server to encrypt content so that it can only be read with the private key. Export the RSA Public Key to a File. This is a command that is.
Hi all, I'm using SunPKCS11 provider to generate RSA key pair.
Jul 22, 2021 How to Generate a SSH Key Pair. When generating SSH keys under Linux, you can use the ssh-keygen command. It is a tool for creating new authentication key pairs for SSH. To generate a SSH key pair open up the terminal and type in the following command: ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key.

11.1 SSH keys

Cryptography - Hit PKCS11Exception: CKRTEMPLATEINCONSISTENT when generate RSA Key Pair Cryptography.

SSH keys provide a more secure way of logging into a server than using a password alone. While a password can eventually be cracked with a brute force attack, SSH keys are nearly impossible to decipher by brute force alone. Generating a key pair provides you with two long strings of characters: a public and a private key. You can place the public key on any server (like GitHub!), and then unlock it by connecting to it with a client that already has the private key (your computer!). When the two match up, the system unlocks without the need for a password. You can increase security even more by protecting the private key with a passphrase.

Adapted from instructions provided by GitHub and Digital Ocean.

11.2 SSH outline and advice

High level overview of what must happen:

Create a public-private SSH key pair. Literally, 2 special files, in a special place. Optionally, encrypt the private key with a passphrase (best practice).
Add the private key to your ssh-agent. If you protected it with a passphrase, you may have additional configuration.
Add your public key to your GitHub profile.

Advice:

If you are new to programming and the shell, you’ll probably find HTTPS easier at first (chapter 10). You can always switch to SSH later. You can use one method from computer A and the other from computer B.
You should swap out your SSH keys periodically. Something like once a year.
It’s best practice to protect your private key with a passphrase. This can make setup and usage harder, so if you’re not up for that (yet), either don’t use a passphrase or seriously consider using HTTPS instead.
Don’t do weird gymnastics in order to have only one key pair, re-used over multiple computers. You should probably have one key per computer (I do this). Some people even have one key per computer, per service (I do not do this).
It is normal to associate multiple public keys with your GitHub account. For example, one public key for each computer you connect with.

11.3 Do you already have keys?

You can check this from RStudio or from the shell.

Global advice: if you do have existing keys, but have no clue where they came from or why you created them, you should seriously consider creating a new SSH key pair. It’s up to you to figure out whether/how to delete the old ones. But don’t let that keep you from creating new keys and moving forward.

11.3.1 From RStudio

Go to Tools > Global Options…> Git/SVN. If you see something like ~/.ssh/id_rsa in the SSH RSA Key box, you definitely have existing keys. Caveat: RStudio only looks for a key pair named id_rsa and id_rsa.pub. This makes sense, because it’s the default and very common. But SSH keys can have other names. If you want to be completely certain, you should also check in the shell.

11.3.2 From the shell

Generating Public/Private Keys In C# And .NET

Go to the shell (appendix A).

List existing keys:

If you are told ~/.ssh/ doesn’t exist, you don’t have SSH keys!

If you see a pair of files like id_rsa.pub and id_rsa, you have a key pair already. The typical pattern is id_FOO.pub (the public key) and id_FOO (the private key). If you’re happy to stick with your existing keys, skip to the sections about adding a key to the ssh-agent and GitHub.

11.4 Create an SSH key pair

11.4.1 Option 1: Set up from RStudio

Go to Tools > Global Options…> Git/SVN > Create RSA Key….

RStudio prompts you for a passphrase. It is optional, but also a best practice. Configuring your system for smooth operation with a passphrase-protected key introduces more moving parts. If you’re completely new at all this, skip the passphrase (or use HTTPS!) and implement it next time, when you are more comfortable with system configuration. I did not use a passphrase at first, but I do now, and record it in a password manager.

Click “Create” and RStudio will generate an SSH key pair, stored in the files ~/.ssh/id_rsa and ~/.ssh/id_rsa.pub.

11.4.2 Option 2: Set up from the shell

Create the key pair like so, but substitute a comment that means something to you, especially if you’ll have multiple SSH keys in your life. Consider the email associated with your GitHub account or the name of your computer, e.g. you@example.com or 2018-mbp.

Accept the proposal to save the key in the default location. Just press Enter here:

You have the option to protect the key with a passphrase. It is optional, but also a best practice. Configuring your system for smooth operation with a passphrase-protected key introduces more moving parts. If you’re completely new at all this, skip the passphrase and implement it next time, when you are more comfortable with system configuration. I did not use a passphrase at first, but I do now, and record it in a password manager.

The process should complete now and should have looked like this:

11.4.3 Add key to ssh-agent

Tell your ssh-agent about the key and, especially, set it up to manage the passphrase, if you chose to set one.

Things get a little OS-specific around here. When in doubt, consult GitHub’s instructions for SSH, which is kept current for Mac, Windows, and Linux.

11.4.3.1 Mac OS

Make sure ssh-agent is enabled. Here’s what success look like:

Sometimes this fails like so:

A similar failure might be reported as “Permission denied”. You should try again, but as the superuser. Don’t forget to use exit to go back to your normal user account, when you are done!

Add your key to the ssh agent. If you set a passphrase, you’ll be challenged for it here. Give it. The -K option stores your passphrase in the keychain.

If you’re using a passphrase AND on macOS Sierra 10.12.2 and higher, you need to do one more thing. Create a file ~/.ssh/config with these contents:

This should store your passphrase persistently in the keychain. Otherwise, you will have to enter it every time you log in. Useful StackOverflow thread: How can I permanently add my SSH private key to Keychain so it is automatically available to ssh?.

11.4.3.2 Windows

In a Git Bash shell, make sure ssh-agent is running:

Add your key.

11.4.3.3 Linux

In a shell, make sure ssh-agent is running:

Add your key.

11.5 Provide public key to GitHub

Now we store a copy of your public key on GitHub.

11.5.1 RStudio to clipboard

Go to Tools > Global Options…> Git/SVN. If your key pair has the usual name, id_rsa.pub and id_rsa, RStudio will see it and offer to “View public key”. Do that and accept the offer to copy to your clipboard. If your key pa

Rsa Generate Key Pair C