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LTE Security II: NAS and AS Security

Table of Contents 1. Introduction 2. NAS Security 3. AS Security 4. Security Context 5. Closing and References 1. Introduction In LTE Security I[1], Part I of the LTE Security technical document, we have discussed LTE authentication based on EPS AKA procedure and learned a UE and an MME get to share the KASME when authenticated. In this document, w...

08/05/2013

232,011

Technical Documents

LTE Security I: Concept and Authentication (Presentation version)

07/31/2013

27,668

Technical Documents

LTE Security I: Concept and Authentication

Table of Contents 1. Introduction 2. LTE Security Concept 3. LTE Authentication Procedure 4. Closing and References 1. Introduction Wireless communication, in its nature, is always at a risk of eavesdropping or manipulation because data originally sent from/to a user may be received and unlawfully used by an unintended user. Locations or traveling routes...

07/31/2013

231,731

Technical Documents

LTE Identification

07/25/2013

19,819

One-Shot Gallery

LTE Network Architecture: Basic

Table of Contents 1. Introduction 2. LTE Network Architecture Reference Model 3. LTE Protocol Stacks 4. Closing References 1. Introduction This document presents the LTE network architecture as the first technical document of “LTE” area. The LTE network called EPS (Evolved Packet System) is an end-to-end (E2E) all IP network; EPS is...

07/10/2013

391,546

Technical Documents

LTE: User Identifiers - IMSI and GUTI

Today's topic is IMSI (International Mobile Subscriber Identity) and GUTI (Globally Unique Temporary Identifier). These two are parameters (identifiers) used in identifying UEs in LTE networks. What is IMSI? IMSI is a unique ID that globally identifies a mobile subscriber. It is composed of two parts, PLMN ID and MSIN, as shown in Figure below. A PLMN ID is an ID that globally identi...

07/10/2013

127,868

Tech-Blog

LTE Authentication and Security over Radio Links

All wireless telecommunication networks (e.g. Wi-Fi, WiBro and LTE provide “user authentication” and “security over radio link (integrity check (protection/verification) and ciphering (or encryption))” features. User authentication is required for network operators to ensure that only those who subscribe to them (i.e. paid subscribers) can access their networks. In wir...

07/05/2013

53,386

Tech-Blog

LTE Network Architecture: Basic

Obviously, the hottest issue in mobile communication today is LTE. All three top telecommunication operators in Korea are trying hard to promote their brands, each containing the technical term "LTE" somewhere, for greater exposure of the brands to the public. So, we will briefly go over what network elements make the LTE network today. The Figure below is an illustration of an LTE Network R...

07/01/2013

43,798

Tech-Blog