This How To Generate ed25519 Keys helps you to increase security for SSH, but also to have an easier life with login. It guides you thru the ed25519 Keys generation.
Index of How To Generate ed25519 Keys
- How To Generate ed25519 Keys
- Additional Information
ed25519 keys are currently by many cybersecurity experts being considered as a safe way to protect SSH tunnels. Furthermore, ed25519 keys are considered to be a good option to be leveraged on for SSH key authentication.
SSH key based login is leveraging on certificates / keys (such as ed25519 keys). Producing such keys is very simple, as you can find it in this how to.
There is one more point, you like to leverage on a strong cryptographic standard. Therefore, this How To guides you for generating Ed25519.
The how to leverages on a standard Linux system, based on Debian.
Step 1: Generate Ed25519 Certificates
On your Linux PC open a terminal and run:
ssh-keygen -t ed25519 -C "Your@E-MailAddress.com"
This will generate a new set of keys (private and public key). The output would look like the below. During the process, decide whether you like to set a passphrase for your private key.
pi@raspberry:~$ ssh-keygen -t ed25519 -C "Your@E-MailAddress.com" Generating public/private ed25519 key pair. Enter file in which to save the key (/home/openhabian/.ssh/id_ed25519): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/openhabian/.ssh/id_ed25519 Your public key has been saved in /home/openhabian/.ssh/id_ed25519.pub The key fingerprint is: SHA256:iic0RyBXlhKNmvr7OxS8z95dcdRi8EmQRpsXG1J3zeE OpenHAB3 The key's randomart image is: +--[ED25519 256]--+ | . +=o. .=+=o=| | oooo oB.B+| | + .. .o OE.| | o o. + . | | . oo. S . . | |. .o+ . o | | . .ooo . | | . .oo. . . | | .oo+. . . | +----[SHA256]-----+
Done & Enjoy!
I however recommend to consider a couple of Hardening steps that you can find in the next chapter, Additional System Hardening.
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