If an authentication protocol is being implemented that uses a private key and a session key, the pr seenagape 12 years ago If an authentication protocol is being implemented that uses a private key and a session key, the protocol is: A.L2TP (Layer 2 Tunneling Protocol). B.Kerberos C.IPSec (Internet Protocol Security). D.PPTP (Point-to-Point Tunneling Protocol). ← Previous question Next question →