Activity
From 01/27/2020 to 02/25/2020
02/24/2020
- 11:41 AM Feature #4412 (In Progress): SIM applet: add debug menu entry to change IMSI
- I've implemented a menu, and a submenu for "Change IMSI":...
02/21/2020
- 08:22 PM Feature #4401: Proof of concept for counting Location Updates in SIM applet
- On Fri, Feb 21, 2020 at 02:33:54PM +0000, osmith [REDMINE] wrote:
> I thought that I need to access the filesystem an... - 02:33 PM Feature #4401 (Resolved): Proof of concept for counting Location Updates in SIM applet
- I thought that I need to access the filesystem and write it there (which had me confusing: where to write it exactly?...
- 11:56 AM Feature #4401: Proof of concept for counting Location Updates in SIM applet
- After testing the hello world example, I've modified it to display a message on every location update. This works! Th...
- 07:10 AM Feature #4401 (In Progress): Proof of concept for counting Location Updates in SIM applet
- 02:48 PM Feature #4404: Research: Make sure that we can silently detach the IMSI
- > How does a SIM/baseband behave when its IMSI is changed?
Let's add a menu entry that changes the IMSI to check t... - 02:48 PM Feature #4412 (Resolved): SIM applet: add debug menu entry to change IMSI
- Before drafting the spec, we need to check how the baseband/SIM behave if the IMSI changes. Adding it to the menu of ...
02/20/2020
- 04:22 PM Feature #4404: Research: Make sure that we can silently detach the IMSI
- With ATT=0, LU (Periodic) still happen as usual.
- 04:10 PM Feature #4404: Research: Make sure that we can silently detach the IMSI
- I just tested setting ATT=0 in SI3 Channel Description via
osmo-bsc.cfg... - 01:55 PM Feature #4404: Research: Make sure that we can silently detach the IMSI
- Ah, I did find that, but interpreted it differently:
ATT, Attach-detach allowed (octet 2)
Bit
7
0 MSs in the...
02/19/2020
- 06:21 PM Feature #4404: Research: Make sure that we can silently detach the IMSI
- On Wed, Feb 19, 2020 at 02:32:02PM +0000, redmine@lists.osmocom.org wrote:
> If there is a switch to tell the MS to d... - 02:32 PM Feature #4404: Research: Make sure that we can silently detach the IMSI
- If there is a switch to tell the MS to do silent IMSI Detach, then it should be sufficient to set it.
Spent some tim... - 12:55 PM Feature #4404: Research: Make sure that we can silently detach the IMSI
- laforge "pointed out":https://osmocom.org/issues/4400?issue_count=5&issue_position=5&prev_issue_id=4401#note-16, that...
- 10:34 AM Feature #4404 (Stalled): Research: Make sure that we can silently detach the IMSI
- laforge wrote:
> neels wrote:
> > The usefulness of the project seems to pivot on the visibility of the IMSI Detach... - 12:50 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- laforge wrote:
> > > I doublt IMSI DETACH is used much in real-world networks these days as it is unauthenticated
>... - 11:11 AM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- On Wed, Feb 19, 2020 at 10:35:24AM +0000, redmine@lists.osmocom.org wrote:
> what do you think about warning the user... - 10:35 AM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- laforge wrote:
> One disadvantage of such an "explicit" mechanism relying on OTA SMS is that any
> intermediary / a... - 10:40 AM Feature #4402 (Stalled): Specification: Create draft
- 10:34 AM Feature #4403 (Feedback): OsmoHLR: How to interface with SMS service?
- laforge "wrote":https://osmocom.org/issues/4400#note-14:
> On Tue, Feb 18, 2020 at 04:44:23PM +0000, neels [REDMINE]...
02/18/2020
- 08:11 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- On Tue, Feb 18, 2020 at 04:44:23PM +0000, neels [REDMINE] wrote:
> * SMS-over-GSUP?
no, that would mean you need an ... - 05:31 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- On Tue, Feb 18, 2020 at 04:33:42PM +0000, neels [REDMINE] wrote:
> * IMSI pool managed in HLR; HLR tells SIM when to ... - 04:44 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- Open question: how to interface HLR and SMS service
* SMS-over-GSUP?
* SMPP handler and CTRL interface to osmo-hlr? - 04:33 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- Summary of important aspects so far:
* IMSI pool managed in HLR; HLR tells SIM when to move to a new IMSI.
** Whe... - 03:11 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- also consider TMSIs: when changing the IMSI, the SIM should discard its TMSI used for the network.
The MSC still ass... - 02:54 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- Discussion: when to change the pseudo IMSI?
Changing the pseudo IMSI is only possible when the subscriber is attac... - 02:38 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- I've created a README.md for imsi-pseudo.git based on the description of this issue:
https://gerrit.osmocom.org/pl... - 07:55 AM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- @laforge gave feedback about the scope of the project. Text updated: additional encryption layer removed from the pro...
- 02:41 PM Feature #4402 (Resolved): Specification: Create draft
- Before we implement this in Osmocom, we will create a draft specification.
Based on the approach described in #440... - 02:34 PM Feature #4401 (Resolved): Proof of concept for counting Location Updates in SIM applet
- Before we put this part in the draft specification, we should make sure that we can actually count location updates i...
- 07:57 AM Feature #4397 (Rejected): Approach A: Calculate pseudo IMSI with TOTP
- 07:57 AM Feature #4398 (Rejected): Approach B: Calculate pseudo IMSI with HOTP
02/17/2020
- 01:49 PM Feature #4400: Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- @neels gave feedback: NEW SESSION REQ and NEW SESSION RESP can be removed, if we let the HLR suggest the same pseudo ...
- 10:29 AM Feature #4400 (Resolved): Approach C: HLR decides and sends the entire next pseudo IMSI to SIM
- h3. Overview
In contrary to previous approaches, the HLR decides the pseudo IMSI
independently of the SIM applet.... - 08:44 AM Feature #4398: Approach B: Calculate pseudo IMSI with HOTP
- Based on the feedback, I'm working on a new approach and will post it soon as "Approach C".
02/14/2020
- 04:14 PM Feature #4398: Approach B: Calculate pseudo IMSI with HOTP
- neels wrote:
> What if the HLR tells the SIM to increment the counter, but that message gets lost / arrives late?
... - 03:05 PM Feature #4398: Approach B: Calculate pseudo IMSI with HOTP
- neels wrote:
> What if the HLR tells the SIM to increment the counter, but that message gets lost / arrives late?
... - 02:21 PM Feature #4398: Approach B: Calculate pseudo IMSI with HOTP
- points to explore:
What if the HLR tells the SIM to increment the counter, but that message gets lost / arrives la... - 01:48 PM Feature #4398 (Rejected): Approach B: Calculate pseudo IMSI with HOTP
- Similar to approach A in #4397, but without any collisions and problems with timestamps. Since timestamps are not use...
- 12:43 PM Feature #4397 (Rejected): Approach A: Calculate pseudo IMSI with TOTP
- This was my first approach, I think the HOTP based one is better. But for completeness, I will write it out here and ...
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