does it support authentication? 

Does it support following? I don't see anywhere in the code that supports multiple user authentications. If not are you planning to do one? We can create a PR if you could guide us. 
```
{
    // SSH:
    'passphrase': "...",
    'refuseUnknownHost': true, // Default is false

    // HTTPS:
    'username': "...",
    'password': "..."
}
```