Generate ed25519 SSH key

Generate a modern, secure ed25519 key pair. Press Enter for default location, optionally set a passphrase.

Generates an Ed25519 SSH key pair. Ed25519 keys are shorter, faster, and more secure than the older RSA-2048 keys. The -C flag adds a comment to identify the key in authorized_keys files.

When you need this: When setting up a new machine for GitHub, server access, or any SSH-based service.

Variables

Key comment (usually email or device name) *

Usually your email address or machine name to identify the key later.

Command

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