Kerberos (protocol) - Wikipedia
https://en.wikipedia.org/wiki/Kerberos_(protocol)Kerberos is a computer-network authentication protocol that works on the basis of tickets to allow nodes communicating over a non-secure network to prove their identity to one another in a secure manner. The protocol was named after the character Kerberos (or Cerberus) from Greek mythology, the ferocious three-headed guard dog of Hades. Its designers aimed it primarily at a client–server model, and it provides mutual authentication—both the user and the server verify each other's ide…
Kerberos: The Network Authentication Protocol
web.mit.edu › kerberosKerberos is a network authentication protocol. provide strong authentication for client/server applications by using secret-key cryptography. A free implementation of this protocol is available from the Massachusetts Institute of Technology. Kerberos is available in many commercial products as well.