1.7.1 Pre-Authentication

The Kerberos V5 protocol supports pre-authentication, which takes place during the AS exchange and occurs when the client first authenticates to the KDC. A client pre-authenticates if it supplies additional information that proves it knows the key it shares with the KDC before the TGT is issued. See Pre-authentication Data (section 3.1.5.1) for a complete specification of these types supported by KILE.

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