ssh-key-generator/index.html at main · Fechin/ssh-key-generator · GitHub

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              "text": "Ed25519 is a modern elliptic curve algorithm that offers better security with smaller key sizes (256-bit vs 2048-4096-bit RSA). Ed25519 keys are faster to generate and use, and are recommended for most new SSH setups. RSA is older but has wider compatibility with legacy systems."
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              "text": "1) Generate your SSH key using this tool, 2) Copy the public key, 3) Go to GitHub Settings > SSH and GPG keys, 4) Click 'New SSH key', 5) Paste your public key and give it a title, 6) Click 'Add SSH key'. Test with: ssh -T git@github.com"
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            "name": "Can I use the same SSH key for multiple servers?",
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            "name": "What is the authorized_keys file?",
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              "text": "The authorized_keys file (located at ~/.ssh/authorized_keys on Linux/macOS servers) contains a list of public keys that are allowed to connect to that account. Each line is one public key. Add your public key to this file to enable passwordless SSH login."
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            "name": "What permissions should my SSH private key have?",
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              "text": "Your SSH private key should have restricted permissions. On Linux/macOS, use 'chmod 600 ~/.ssh/id_ed25519' (owner read/write) or 'chmod 400' (owner read-only). SSH will refuse to use a key with permissive permissions. The .ssh directory should be 700."
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