Trouble Accessing CVA6 via SSH

Hello,

I have synthesized the CVA6 RTL code for Genesys2 as described in the README file, built the Linux image using the CVA6-SDK, and now I have Linux running on the CVA6 on our board. I set a static IP for eth0, and I can ping the board from a remote machine. However, I can't SSH to it. Whenever I try to SSH to the board, it asks for a password. Since there is no password, I just press enter, but the message 'Permission denied, please try again.' appears. I also tried setting a password like 'root', but the same thing happens: after entering the password(root), it responds with 'Permission denied, please try again.'

Is it supposed to be possible to SSH to the board from a remote machine?