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Feature #4144

provide config to enable/disable UTRAN encryption

Added by neels about 2 years ago. Updated 8 months ago.

Status:
Stalled
Priority:
High
Assignee:
Category:
-
Target version:
-
Start date:
08/06/2019
Due date:
% Done:

50%

Resolution:
Spec Reference:

Description

we have net / encryption a5 configuration for GERAN.
Add similar commands for UTRAN, like net / encryption uea1 uea2


Checklist

  • add bool to switch Iu encryption on/off
  • add individual UEA1, UEA2 selection

Related issues

Blocked by libosmo-ranap - Feature #4143: Security Mode Command needs distinct UEA1 and UEA2 optionsResolved08/06/2019

History

#1 Updated by neels about 2 years ago

  • Blocked by Feature #4143: Security Mode Command needs distinct UEA1 and UEA2 options added

#2 Updated by neels about 2 years ago

  • Checklist item add bool to switch Iu encryption on/off added
  • Checklist item add individual UEA1, UEA2 selection added
  • Status changed from New to Stalled
  • % Done changed from 0 to 50

#3 Updated by laforge 8 months ago

  • Assignee set to neels
  • Priority changed from Normal to High

I don't actually think that the referenced patch from one year ago (https://gerrit.osmocom.org/c/osmo-msc/+/15175) works.

While one can now select whether encryption should be enabled or disable in UTRAN, the code never passses the ck to ranap_new_msg_sec_mod_cmd() and hence the air interface will always only use integrity protection and no encryption at all:
The ck argument is always NULL, I don't see how the proper key would have ever been passed down?

#4 Updated by laforge 8 months ago

I hacked up https://gerrit.osmocom.org/c/osmo-msc/+/22757 (UNTESTED). please verify.

#5 Updated by laforge 8 months ago

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