Developed at MIT in 1983

Windows active directory uses it.

There is a Key Distribution Center (KDC) that shares a key with each participant.

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How it works:

Alice want to talk to Bob.

First step → Getting the Ticket Granting Ticket (TGT) and Session Key.

Second Step → Getting the ticket for Bob

Third Step → Communcation with Bob

TGT and Session Key

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Ticket for Bob

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Communication with Bob

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Summary

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