K

Kerberos authentication

Kerberos defines a set of authentication services and includes the Authentication Service (AS) Exchange protocol, the Ticket-Granting Service (TGS) Exchange protocol, and the Client/Server (CS) Exchange protocol.

Key Distribution Center (KDC)

A cryptographic system service that handles authentication of an access request by providing a client ticket based on a server’s key and then verifying that ticket when submitted to the appropriate server.

key escrow

Key escrow occurs when a CA or other entity maintains a copy of the private key associated with the public key signed by the CA.

key exchange

A technique in which a pair of keys is generated and then exchanged between two systems (typically a client and server) over a network connection to allow a secure connection to be established between them.