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Authentication documentation

Keep your account and data secure with features like two-factor authentication, SSH, and commit signature verification.

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Generating a new SSH key and adding it to the ssh-agent
After you've checked for existing SSH keys, you can generate a new SSH key to use for authentication, then add it to the ssh-agent.
Managing your personal access tokens
You can use a personal access token in place of a password when authenticating to GitHub in the command line or with the API.
Configuring two-factor authentication
You can choose among multiple options to add a second source of authentication to your account.

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Guides

All Authentication docs

Keeping your account and data secure

Securing your account with two-factor authentication (2FA)

Connecting to GitHub with SSH

Troubleshooting SSH

Managing commit signature verification

Troubleshooting commit signature verification