This paper is presented in ISCISC 2017

1. A Lightweight and Secure Data Sharing Protocol
for D2D Communications
Atefeh Mohseni, Maedeh Ashouri, Mojtaba Mahdavi
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2. 14th Int. ISC Conference on Information Security and Cryptography- Shiraz University, 2017 2
Outline
 Background
 Motivation and problem statement
 Related work
 Proposed scheme
 Results
 Summary
 Future work

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Background
“5G will be a new kind of network, supporting a vast
diversity of devices with unprecedented scale, speed and
complexity.

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Background

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 Motivation and problem
statement

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 Motivation and problem
statement

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 Motivation and problem
statement
 D2D applications:

 Local voice service
 Multimedia content sharing
 Gaming
 Group multicast
 Context-aware applications
 Public safety

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 Motivation and problem
statement
 D2D applications:

 Local voice service
 Multimedia content sharing
 Gaming
 Group multicast
 Context-aware applications
 Public safety

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 Security threats
 Motivation and problem
statement
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 Motivation and problem
statement
 D2D communication vulnerabilities are due to:

 Direct wireless connection between devices
 A new relay transmission structure
 Mobility
 Privacy concerns


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 Our contributions


 Considering all the security requirements of data sharing

 Lightweight computation costs

 Compatible with mobility


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 Related work


 Secure Data Sharing Strategy (SeDS)[1]

 Evolved Packet System Authentication and Key Agreement (EPS-
AKA)[2]

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Preliminaries:System Model
 Network Architecture of LTE-A networks

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Preliminaries:EPS-AKA
 Evolved Packet Core Authentication and Key Agreement scheme(EPS-AKA)

15. 15
Proposed scheme
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Results

 The comparison of computation overhead of our protocol and SeDS


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17. 14th Int. ISC Conference on Information Security and Cryptography- Shiraz University, 2017
Results

 Security Verification of the Proposed Protocol:
 Authentication and Key Agreement
 Confidentiality and Integrity
 Man-in-The-Middle Attack
 Replay Attack
 DoS Attack
 Impersonation Attack
 Free ridding Attack


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Summary
 The proposed scheme:
 guarantees data confidentiality and integrity
 resists message fabrication, man-in-the-middle, replay and
DoS attacks
 The performance is acceptable by decreasing the
computation cost of users


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Future work

 Consider a group-based model

 Adapt the scheme with (proximity-based services) ProSe

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Reference
 [1] Zhang, Aiqing, et al., SeDS: Secure data sharing strategy for
D2D communication in LTE-Advanced networks, IEEE
Transactions on Vehicular Technology,Vol 65, pp 2659-2672,
2016
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 [2] 3GPP, TR 33.401, v.14.2.0, Security Architecture, Release 14,
2017
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 Thanks for your attention
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 Any Question?
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