1 |
b9fc075b
|
Oliver Smith
|
# [WIP] Make IMSI Pseudonymization an optional extension of 3GPP TS
|
2 |
|
|
|
3 |
5616ae82
|
Oliver Smith
|
NOTE: this file is deprecated, it will be replaced by imsi-pseudo-spec.adoc.
|
4 |
|
|
|
5 |
5e62dbac
|
Oliver Smith
|
Relevant specs:
|
6 |
|
|
* 3GPP TS 23.008: Organization of subscriber data
|
7 |
|
|
* Add pseudo IMSI and pseudo_imsi_i optionally to be saved in the HLR
|
8 |
4a3d8d3f
|
Oliver Smith
|
* "Process Update_Location_HLR" of TS 09.02
|
9 |
|
|
* Cancel location in old VLR/SGSN if IMSI pseudonymization is enabled, and a
|
10 |
|
|
previous pseudonymous IMSI exists for the subscriber
|
11 |
5380e95a
|
Oliver Smith
|
|
12 |
b9fc075b
|
Oliver Smith
|
Optional additions we need to make, and where to make them:
|
13 |
|
|
|
14 |
|
|
* Initial provisioning of the SIM: can optionally have a pseudo IMSI
|
15 |
|
|
* During location update, the HLR uses the pseudo IMSI for all communication
|
16 |
|
|
with the VLR / MSC
|
17 |
5e62dbac
|
Oliver Smith
|
* Is there anything to update? We just replace the IMSI, so the SIM and the
|
18 |
|
|
VLR / MSC don't act any different
|
19 |
b9fc075b
|
Oliver Smith
|
* After successful location update:
|
20 |
5e62dbac
|
Oliver Smith
|
* See 2. in README.md
|
21 |
b9fc075b
|
Oliver Smith
|
|
22 |
|
|
TODO:
|
23 |
|
|
* extend the list above with the exact sections of the spec, where the new
|
24 |
|
|
information should be placed
|
25 |
|
|
* Is there a spec for SIM applets, or do we put the SIM applet behaviour in the
|
26 |
|
|
regular spec for SIM cards, or mention its behavior in the location update
|
27 |
|
|
related change?
|
28 |
d79601db
|
Oliver Smith
|
* describe everything in detail, fill in the full contents for the SMS etc.
|