Enhancing Security and Privacy in 3GPP E-UTRAN Radio Interface

Forsberg, Dan; Huang, Leping; Tsuyoshi, Kondoh; Alanara, S.

doi:10.1109/pimrc.2007.4394792

Cited by 35 publications

(30 citation statements)

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“…Two techniques that can be used by attackers to achieve UE location tracking in future 5G access networks are those techniques for LTE networks described in (Seddigh, 2010) and (Forsberg, 2007). They are based on the Cell Radio Network Temporary Identifier (C-RNTI) and the packet sequence numbers.…”

Section: Ue Location Trackingmentioning

confidence: 99%

“…Thus, an adversary is able to determine whether the UE using the given C-RNTI is still in the same cell or not. According to (Forsberg, 2007), periodic C-RNTI re-allocation is a potential solution. Periodic C-RNTI reallocation for a UE staying for a long time on the same cell can make it more difficult for an attacker to obtain information related to its presence on the cell.…”

Section: --Ue Location Tracking Based On C--rntimentioning

confidence: 99%

“…During the handover process, a new C-RNTI is assigned to the UE via the Handover Command message. Thus, in case that the allocation of C-RNTI itself is not confidentiality protected, an attacker can link the new C-RNTI in the Handover Command message and the old C-RNTI in the L1 control signal (Seddigh, 2010), (Forsberg, 2007). To mitigate this type of attack, encryption of RRC messages, such as the Handover Command message and the Handover Confirm message, is proposed in (Forsberg, 2007).…”

Section: --Ue Location Tracking Based On C--rntimentioning

confidence: 99%

“…Then, an attacker can track the UE based on the continuous packet sequence numbers of packet streams. To address UE tracking based on sequence numbers, the authors in (Forsberg, 2007) propose that the sequence numbers over the radio should be discontinuous in handover processes and possibly also in the state transitions between idle and active modes. Particularly, they propose the use of a random offset in order to make the user and control plane sequence numbers discontinuous on the radio link.…”

Section: --Ue Location Tracking Based On Packet Sequence Numbersmentioning

confidence: 99%

“…Particularly, they propose the use of a random offset in order to make the user and control plane sequence numbers discontinuous on the radio link. Finally, another solution proposed also in (Forsberg, 2007) is the use of fresh keys for each eNB, which allows setting the sequence number to any random value and thus makes it discontinuous.…”

Section: --Ue Location Tracking Based On Packet Sequence Numbersmentioning

confidence: 99%

See 4 more Smart Citations

Security for 5G Communications

Μαντάς

Komninos

Rodrı́guez

et al. 2015

Fundamentals of 5G Mobile Networks

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Section: Ue Location Trackingmentioning

confidence: 99%

Section: --Ue Location Tracking Based On C--rntimentioning

confidence: 99%

Section: --Ue Location Tracking Based On C--rntimentioning

confidence: 99%

Section: --Ue Location Tracking Based On Packet Sequence Numbersmentioning

confidence: 99%

Section: --Ue Location Tracking Based On Packet Sequence Numbersmentioning

confidence: 99%

See 3 more Smart Citations

Security for 5G Communications

Μαντάς

Komninos

Rodrı́guez

et al. 2015

Fundamentals of 5G Mobile Networks

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Security architecture and scheme of user‐centric ultra‐dense network (UUDN)

Chen

Xu³

et al. 2017

Trans. Emerging Tel. Tech.

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User‐centric ultra‐dense network (UUDN) is an inspiring approach of 5G, characterized by serving each user with dynamic access point group and designed to be independent of user's involvement. Contrast with traditional network‐centric cellular network, the UUDN architecture is based on the philosophy of network serving user. However, there is little systematic analysis of the security of UUDN, especially, the UUDN security architecture and key technologies challenges. After analysis of the main security challenges and requirements for the UUDN network architecture, we propose a new security architecture, details of its design, and the key security technologies for the UUDN security solutions and give performance evaluation for simulation. Finally, we discuss the future works in the fields of UUDN security.

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Temporary Internet Access for Authentication and Key Agreement for LTE Networks

Xie

2018

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Evolved Packet System-Authentication and Key Agreement (EPS-AKA) is the security protocol in Long-Term Evolution (LTE). However, it is still vulnerable to user identity attacks and fake eNBs. Efficient EPS-AKA (EEPS-AKA) was proposed with some improvements. Nevertheless, the EEPS-AKA is vulnerable to denial-of-service (DoS) attacks and fake eNBs, despite of some minor flaws in its procedures. In this paper, we propose Temporary Internet Access (TIA)-AKA to: (1) prevent user identity disclosure by implementing some additional steps, which allows a user equipment (UE) to request a temporary UE identity to access Internet; and (2) authenticate the Mobility Management Entity (MME) through the validity of the assigned IP address. Physical address and simple password exponential key exchange (SPEKE) method are combined into the proposed TIA-AKA. Efficiency analysis suggests the TIA-AKA provides a fully protection on the user identity and prevent the DoS attack, at the expense of increased bandwidth consumption and processing delay.

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Enhancing Security and Privacy in 3GPP E-UTRAN Radio Interface

Cited by 35 publications

References 1 publication

Security for 5G Communications

Security for 5G Communications

Security architecture and scheme of user‐centric ultra‐dense network (UUDN)

Temporary Internet Access for Authentication and Key Agreement for LTE Networks

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