II, III, IV, V Only 

I, III, IV, V Only 

 I, II, III,  V Only

 I, II, III, IV Only

g^yz

g^xy

g^xzy

g^xz

I) Yes II) No

I) Yes II) Yes

I) No III) Yes

I) No II) No

I, II, & III Only

I, II, III & IV Only

I & II Only

II & III Only

III, IV

II, IV

II, III

I, II

Alice and Bob both cannot Interpret the ticket

Alice, Bob and KDC trio cannot interpret the ticket

 Alice can Interpret the ticket

Alice cannot Interpret the ticket 

Vulnerable to proceed

Not possible to generate secret key  

16

8

Given p, g, g^b mod p and g^(a*b) mod p,  compute g^a mod p  

Given p, g, a , compute g^a mod p 

Given p, g, g^a mod p and g^b mod p,  compute g^(a*b) mod p

 Given p, g, g^a mod p, compute a

 I, II, III, IV Only

I, III, IV, V Only 

 I, II, III,  V Only

II, III, IV, V Only 

Not possible to generate secret key  

16

Vulnerable to proceed

8