Creating SSH keys with Connectbot

Generate Public/Private Key

For additional security, you can use a public/private key pair to login. If you disable password authentication, your sshd setup will be more secure.

Tap on the : menu at the top right corner, then tap Manage Pubkeys.

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Tap the + plus icon at the top right corner.

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Nickname: Fill in a nickname for the key.
Type: Here we chose Ed25519.
Password: Optional: If you leave this blank, you can login without a password. WARNING: If you use a password, write it down and don't forget it. The key becomes worthless if you forget the password!
Check Load key on start

Tap Generate.

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Move your finger around the purple box randomly.

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Tap on the public key and unlock it.

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Tap Copy public key.

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Tap the back arrow button at the top left, then login to your server as before and type in the password.

Edit ~/.ssh/authorized_keys and paste in your public key:

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Logout and then login. You should no longer need to type in any password.