Design a variant of Kerberos in which the workstation generates a TGT. The TGT will be encrypted with the user's master key rather than the KDC's master key. How does this compare with standard Kerberos in terms of efficiency, security, etc.? What happens in each scheme if the user changes her password during a login session? Design a variant of Kerberos in which the workstation generates a TGT. The TGT will be encrypted with the user's master key rather than the KDC's master key. How does this compare with standard Kerberos in terms of efficiency, security, etc.? What happens in each scheme if the user changes her password during a login session