Which of the following steps is NOT part of establishing a session with SSH keys?

The step involving the server verifying the client with a password is not part of establishing a session with SSH keys. When using SSH keys, the authentication process relies on the cryptographic key pair, where the client possesses a private key and the server holds the corresponding public key. This method allows for secure authentication without the need for password verification, thus streamlining the connection process.

In sessions that utilize SSH keys, the client first generates a key pair and shares the public key with the server. When the client attempts to connect, the server uses this public key to confirm the client's identity by checking if it possesses the corresponding private key. This authentication does not require a password, making the process more efficient and secure.

The subsequent steps include the exchange of public keys, the agreement on a symmetric session key, and encrypting all further communication with that session key, thereby maintaining confidentiality and integrity throughout the session. These established practices highlight the preference for key-based authentication in SSH setups over traditional password authentication, which can be more vulnerable to attacks.