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cryptography

updated 2021-10-14

This information is not authoritative, nor from a place of deep knowledge.

SSH keys

Sources

• Adding a new SSH key to your GitHub account (GitHub Docs)
• Checking for existing SSH keys (GitHub Docs)
• Generating a new SSH key and adding it to the ssh-agent (GitHub Docs)

SSH keys are typically stored in $HOME/.ssh.

Typically, the public key's filename will be suffixed with .pub, while the private key will not.

You can generate an SSH key with ssh-keygen(1). Currently the preferred implementation is openssh-keygen, part of the OpenSSH suite.

Microsoft GitHub documentation suggests a user create a key with ssh-keygen -t ed25519 -C "[e-mail address]". This generates an Ed25519 SSH key with an e-mail address in the key comment.