Question: 2 . 3 . We discussed Kerberos as an example of an authentication system. Why does Kerberos transmit messages that are encrypted versions of the

2.3 .

We discussed Kerberos as an example of an authentication system. Why does Kerberos transmit messages that are encrypted versions of the user ID and time? Both of these quantities are known or knowable to any observer, why bother to encrypt them?

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