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Feature #4416
closedfind out whether/how SIM applet can invalidate TMSI
Start date:
02/26/2020
Due date:
% Done:
100%
Spec Reference:
Description
Even after a SIM REFRESH with SIM Init, the SIM still uses the previous TMSI.
Find out how the SIM applet can forget the TMSI or use an invalid one.
Updated by osmith about 4 years ago
- Status changed from New to In Progress
- Assignee set to osmith
We can update "EFLOCI (Location Information)", which consists of (3GPP TS 31.102, 4.2.17):
- Temporary Mobile Subscriber Identity (TMSI);
- Location Area Information (LAI);
- Location update status.
Updated by osmith about 4 years ago
- Status changed from In Progress to Resolved
- % Done changed from 0 to 100
Patches added to invalidate the TMSI, TMSIGPRS, KC and KCGPRS.
I've verified with wireshark, that the SIM now directly sends the IMSI instead of trying the TMSI.
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