Is ki = f(imsi)

[Joker_hk]

Is the ki calculated based on imsi or are these values independent....

if virgin card as been programmed with imsi only, can I then get the correspondent ki?



thanks in advance

[KnOeFz]

Ki=16 bytes
imsi=9 bytes

they're not the same
imsi you can easily read, ki has to be cracked.
use sim_scan to find ki.


-=K=-

[Joker_hk]

let me rephrase the question...

What I'm asking is if by programming a card only with imsi we can later get the ki?
In other words, is the ki calc algorythim based on the imsi only?

thanx

[brakk_]

no way
ki must be activated on the two sides, your sim and the provider database
imsi isn't used to cypher communication, Ki is at all stages of key generation before and during negotiations with network
to resume Ki is THE key ;P
(u can find step by step GSM 'challenge' with all details on interaction of all needed datas on network at google)