top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

Facebook Login
Site Registration

When UE initiates RRC reestablishment with cause integrity failure?

+2 votes
81 views

Reestablishment will be initiated only after AS security then how integrity will be failed and how it initiates reestablishment?

posted Jan 9 by Karan Patel

Share this question
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

2 Answers

0 votes

After initial security activation, encryption and integrity both are imposed for outgoing signalling and data. UE data packets are encrypted while rrc messages are encrypted and integrity protected. Lets assume an encrypted and ciphered rrc message is sent to UE but somehow its integrity checks fails at UE, in that case UE triggers re-establishment procedure to re-set its radio link with eNodeB with new security keys.

answer Jan 11 by Harshita
0 votes

Integrity failure can happen due to mismatch in COUNT-I between UE and ENodeB or if wrong keys are generated during handover (incoming from other RAT).

And of course it can also occur due to attacks from third party and that is what integrity is supposed to be there for....

answer Jan 15 by anonymous
Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...