Kerberos

1. CLIENT - AUTHENTICATION SERVER
2.AUTHENTICATION SERVER - CLIENT
3.CLIENT - TGS
4.TGS-CLIENT
5.CLIENT - SERVER
6.SERVER - CLIENT

TGS = TICKET GRANTING SERVER
C = CLIENT
S = SERVER
|| = CONCATENATE
K = KEY
NC = NONCE
T = TIMESTAMP



THEN....

1. TGS || NC || START || END

2. {KC,TGS || START || END || C } K C.TGS +
{KC.TGS ||START ||END || NC || TGS } KC,TGS

3. {KC,TGS || START || END || C } K AS,TGS +
S || START || END || NC +
{C,T1 } KC,TGS

4. {KC,S || START || END || C } K TGS,S +
{KC,S || START || END || NC ||S } KC,TGS

5. {KC,S || START || END || C } K TGS,S +
{C,T2} KC,S

6. {T3} KC,S

Kerberos = computer network appl protocol which allows individuals communicating over an insecure network to prove their identity to one another in a secure manner.

SORRY GUYS if you dont understand ...
ive spent few hours just to make me understood these... "They" urged me to do it over and over again during discussion... anyway thank to my lit bro Tom(Thai) who taught me the simpler way to understand the process... Owe u one!!!

Things getting complicated... less than 30 days to go...
wish me luck guys!
come on zarul!!!!