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use ed25519 keys instead of rsa keys #362

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Merged
merged 5 commits into from
Nov 3, 2020
Merged

use ed25519 keys instead of rsa keys #362

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62bcdb4
use ed25519 keys instead of rsa keys
timball Oct 9, 2020
519b8bb
Add RSA fallback and change id_rsa to id_ed25519
hubwriter Oct 29, 2020
67648ea
Merge branch 'main' into patch-1
hubwriter Oct 29, 2020
3663e55
Merge branch 'main' into patch-1
hubwriter Nov 3, 2020
7882ce2
Merge branch 'main' into patch-1
hubwriter Nov 3, 2020
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24 changes: 16 additions & 8 deletions ...enticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent.md
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Expand Up @@ -20,34 +20,42 @@ If you don't want to reenter your passphrase every time you use your SSH key, yo
{% data reusables.command_line.open_the_multi_os_terminal %}
2. Paste the text below, substituting in your {% data variables.product.product_name %} email address.
```shell
$ ssh-keygen -t rsa -b 4096 -C "<em>your_email@example.com</em>"
$ ssh-keygen -t ed25519 -C "<em>your_email@example.com</em>"
```
{% note %}

**Note:** If you are using a legacy system that doesn't support the Ed25519 algorithm, use:
```shell
$ ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
```

{% endnote %}
This creates a new ssh key, using the provided email as a label.
```shell
> Generating public/private rsa key pair.
> Generating public/private ed25519 key pair.
```
3. When you're prompted to "Enter a file in which to save the key," press Enter. This accepts the default file location.

{% mac %}

```shell
> Enter a file in which to save the key (/Users/<em>you</em>/.ssh/id_rsa): <em>[Press enter]</em>
> Enter a file in which to save the key (/Users/<em>you</em>/.ssh/id_ed25519): <em>[Press enter]</em>
```

{% endmac %}

{% windows %}

```shell
> Enter a file in which to save the key (/c/Users/<em>you</em>/.ssh/id_rsa):<em>[Press enter]</em>
> Enter a file in which to save the key (/c/Users/<em>you</em>/.ssh/id_ed25519):<em>[Press enter]</em>
```

{% endwindows %}

{% linux %}

```shell
> Enter a file in which to save the key (/home/<em>you</em>/.ssh/id_rsa): <em>[Press enter]</em>
> Enter a file in which to save the key (/home/<em>you</em>/.ssh/id_ed25519): <em>[Press enter]</em>
```

{% endlinux %}
Expand Down Expand Up @@ -81,18 +89,18 @@ Before adding a new SSH key to the ssh-agent to manage your keys, you should hav
$ touch ~/.ssh/config
```

* Open your `~/.ssh/config` file, then modify the file, replacing ` ~/.ssh/id_rsa` if you are not using the default location and name for your `id_rsa` key.
* Open your `~/.ssh/config` file, then modify the file, replacing ` ~/.ssh/id_ed25519` if you are not using the default location and name for your `id_ed25519` key.

```
Host *
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
IdentityFile ~/.ssh/id_ed25519
```

3. Add your SSH private key to the ssh-agent and store your passphrase in the keychain. {% data reusables.ssh.add-ssh-key-to-ssh-agent %}
```shell
$ ssh-add -K ~/.ssh/id_rsa
$ ssh-add -K ~/.ssh/id_ed25519
```
{% note %}

Expand Down