Telecom Articles by Samir Amberkar: wp-lte-ue-nas-overview-p12

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3GPP Modem
Simulator

Test Your
Knowledge

LTE UE NAS overview

NAS Security concepts

Security context

eKSI
K_KSME
UL NAS count
DL NAS count
UE security capability
K_NASint/selected integrity algo
K_NASenc/selected ciphering algo

mapped/full native/partial native

current/non-current


Copyright © Samir Amberkar	Slide 12 of 16

Notes

LTE - NAS Security
LTE - initial attach

3GPP TS 24.301 "EPS NAS"
3GPP TS 33.401 "SAE security architecture"
3GPP TS 31.102 "USIM application"
3GPP TS 33.102 "3G security architecture"
List of all referred specifications along with their 3GPP locations is available here.