A METHOD AND A DEVICE FOR ENABLING KEY RE-USAGE IN A COMMUNICATION NETWORK

WIPO Patent Application WO/2020/145064

A1

The present disclosure relates to method of enabling key re-usage for an electronic device. The method comprising: receiving a request message from the electronic device, wherein the request message comprises a first information being indicative of a preference for one of a first key associated with a first network node in a first network or a second key associated with a second network node in a second network; processing the request message to determine the preference indicated in the first information; and transmitting a response message to the electronic device for reusing the first key or second key, the electronic device is configured to derive a third key based on the first key or the second key as indicated in the determined preference, and the second network is able to access to the first key and the second key whereas the first network cannot access the second key.

WO/2019/011772	A SYSTEM FOR PROVIDING A USER DEVICE ACCESS TO RESOURCE OR DATA AND A METHOD THEREOF
WO/2017/106705	SECURE VEHICLE COMMUNICATION SYSTEM
WO/2014/029939	METHOD FOR ACTIVATING A NEW PROFILE IN A SECURITY ELEMENT

DE KIEVIT SANDER (JP)
PRASAD ANAND RAGHAWA (JP)
BASKARAN SHEEBA BACKIA MARY (IN)

PCT/JP2019/049720

July 16, 2020

December 19, 2019

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NEC CORP (JP)

H04W12/04

US20160094542A1	2016-03-31
US20180343249A1	2018-11-29
IN201911001407A

3GPP TR 33.835, November 2018 (2018-11-01)
3GPP TS 33.220, December 2018 (2018-12-01)
3GPP TS 33.163, September 2018 (2018-09-01)
3GPP TR 33.863, June 2017 (2017-06-01)
3GPP TS 33.501, December 2018 (2018-12-01)
3GPP TS 22.368, December 2014 (2014-12-01)

IEIRI Takeshi (JP)

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