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Can vertical key derivation happen in X2 based handover in LTE

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Please can any one say when vertical key derivation can happen

posted Jun 12, 2014 by anonymous

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Might the same questions been asked before. Please have a look in to Link:
http://tech.queryhome.com/5170/what-the-use-ncc-and-regarding-security-keys-derivation-lte

Anonymous question has poor attention, better to register here and ask as a user. Thums Up.
commented Jun 12, 2014 by Hiteshwar Thakur

1 Answer

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In X2 based handover KeNB* is calculated from either from unused NH or KeNB. So if eNB has recieved NH values from the MME and if not used yet can go for vertical derivation.

answer Jun 13, 2014 by Sanjeet Kumar
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