...
This is a core plugin, and so is enabled by default.
- The plugin must be instantiated, via Configuration > Authenticators > Add Authenticator. Set the Plugin Type to SshKeyAuthenticator.
- Although the plugin can be instantiated multiple times (perhaps to group different types of SSH Keys together), typically it only needs to be instantiated once. A single instantiation can manage multiple SSH Keys for the same CO Person.
...
Supported File Formats
SSH Public Keys are associated with an instantiation via manual upload or the SshKey API. For manual upload, key files must be in OpenSSH format or (as of Registry v4.2.0) RFC 4716 format.
...