Set Up SSH Keys for Tunnel Access

Generates an EC P-256 key pair for SSH tunnel authentication. The key is stored at ~/.improve/ssh/client_key.pem. If a key already exists, it is not overwritten.

Usage

improveSetupSSH(keyDir = NULL)

Arguments

keyDir

Optional. Directory for key storage. Defaults to ~/.improve/ssh/ or the IMPROVE_SSH_KEY_DIR environment variable.

Value

The SHA256 fingerprint string (invisibly).

Details

The fingerprint is printed and returned invisibly. This fingerprint is automatically registered with the server when using improveOpenTunnel.

Requires ssh-keygen (OpenSSH) to be available on the system PATH. On Windows, this is included with Git for Windows or the built-in OpenSSH feature.

Examples

if (FALSE) { # \dontrun{
improveSetupSSH()
# SHA256:8c/2N0l/ZmFgogfEDU+a74HaeKZK4rrk8VCuiqqcCmQ
} # }