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While reestablishment How AS security will be re activated?

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How UE receives Kenb while re establishing the connection ?

posted Jan 11 by Karan Patel
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1 Answer

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The new security keys are generated as part of rrc re-establishment procedure at the eNodeB. There is a field "nextHopChainingCount" in the rrc re-establishment message sent to UE. UE re-generates security keys based on this parameter.
Please refer the LTE security spec (33.401) to get more details on key generations.

answer Jan 11 by Harshita

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