LTE key management analysis with session keys context

Forsberg, Dan

doi:10.1016/j.comcom.2010.07.002

Cited by 32 publications

(17 citation statements)

References 6 publications

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“…The authors in [6] and [7] also concerned about the lack of one-hop forward security in the current X2 handover key management. And they put forward their proposals for enhancing the current key management mechanism respectively.…”

Section: A Related Work For Enhancing Key Management In Lte/saementioning

confidence: 99%

An Enhancement for Key Management in LTE/SAE X2 Handover Based on Ciphering Key Parameters

Xiao

Zhou

Cui

et al. 2014

2014 Ninth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing

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The security of handover key management in Long Term Evolution(LTE)/System Architecture Evolution(SAE) has been a popular topic in recent years. In this paper we first describe the security architecture and key hierarchy of LTE/SAE, clarifying security requirements of key management in handover. Next, we analyze security of key management in X2 handover(intra-MME handover), and point out the current key management mechanism in X2 handover only satisfy two-hops forward security and one-hop backward security, but not onehop security. And then, aimed at the security vulnerability of lacking one-hop forward security in current X2 handover key management, we proposed a new scheme for key management in X2 handover based on ciphering some key parameters with the local master root key. At last, the proposed new scheme is analyzed under three adversary models. The analysis shows that one-hop forward security and one-hop backward security could be maintained in our new proposal.

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Section: A Related Work For Enhancing Key Management In Lte/saementioning

confidence: 99%

An Enhancement for Key Management in LTE/SAE X2 Handover Based on Ciphering Key Parameters

Xiao

Zhou

Cui

et al. 2014

2014 Ninth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing

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“…For both NAS and AS level control plane there are separate encryption and integrity protection keys. For the user plane only encryption is specified, thus only an encryption key is derived for it [2], [5].…”

Section: Lte Security Architecturementioning

confidence: 99%

On balance between security and performance for LTE wireless networks

Youssef¹,

Kamel

Hafez

et al. 2012

2012 22nd International Conference on Computer Theory and Applications (ICCTA)

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The deployment of security measures and the provision of quality of service represents two critical and tightly coupled challenges in the design and operation of network services, architectures, and protocols in today's converged communication networks.Security and performance are not necessarily proportional to each other. It is common that; high security measures lead to high reliability results. However over-dimensioned security measures can adversely affect the networks performance and thus the services' quality of experience. For example a lightweight security algorithm may represent a security breach to an Ecommerce application. On the other hand, heavyweight algorithm could impact negatively the service performance. This paper presents a dynamic security system architecture that weighs the trade-off between resources, costs and risks for tuning the network security profile to optimize the performance of communication networks. The paper explores a framework to define the network security profile concept and identify its usage for security analysis and vulnerability assessment for enhancing the networks' performance. A simulation model is developed using OPNET to ground the model analytics under heavy load conditions.

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“…It can be shown that ( ), ∈ { , }, is an increasing function with respect to since ( ) and ( ) are decreasing and increasing functions, respectively, over . 4 Note that optimising the KUI and MRI are two separate optimisation problems of and , respectively. Here, for brevity, let us group these two problems into one as shown in (10) when = or = .…”

Section: Optimal Kui and Mrimentioning

confidence: 99%

“…2 Session keys are used to encrypted messages, i.e. user data and signaling packets, exchanged between a UE and its serving eNodeB [4]. specific UEs and eNodeBs for further active attacks.…”

Section: Introductionmentioning

confidence: 99%

On the Handover Security Key Update and Residence Management in LTE Networks

Vien

Lê

Yang

2017

2017 IEEE Wireless Communications and Networking Conference (WCNC)

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Abstract-In LTE networks, key update and residence management have been investigated as an effective solution to cope with desynchronization attacks in mobility management entity (MME) handovers. In this paper, we first analyse the impacts of the key update interval (KUI) and MME residence interval (MRI) on the handover performance in terms of the number of exposed packets (NEP) and signaling overhead rate (SOR). By deriving the bounds of the NEP and SOR over the KUI and MRI, it is shown that there exists a tradeoff between the NEP and the SOR, while our aim is to minimise both of them simultaneously. This accordingly motivates us to propose a multiobjective optimisation problem to find the optimal KUI and MRI that minimise both the NEP and SOR. By introducing a relative importance factor between the SOR and NEP along with their derived bounds, we further transform the proposed optimisation problem into a singleobjective optimisation problem which can be solved via a simple numerical method. In particular, the results show that a higher accuracy of up to 1 second is achieved with the proposed approach while requiring a lower complexity compared to the conventional approach employing iterative searches.

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LTE key management analysis with session keys context

Cited by 32 publications

References 6 publications

An Enhancement for Key Management in LTE/SAE X2 Handover Based on Ciphering Key Parameters

An Enhancement for Key Management in LTE/SAE X2 Handover Based on Ciphering Key Parameters

On balance between security and performance for LTE wireless networks

On the Handover Security Key Update and Residence Management in LTE Networks

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