March 5, 2002
Practical Aspects of Modern Cryptography
16
The Basic Kerberos Protocol (4)
nPhase 2: C gets a Ticket for S
4.TGS returns a ticket for C to talk to S
n (Just like step 2 above...)
nTGS è C: {TC,S}KS , {KC,S}KC,TGS
nOnly S can decrypt the ticket
nC can unlock the second part to retrieve KC,S
n