1,309 research outputs found
BANZKP: a Secure Authentication Scheme Using Zero Knowledge Proof for WBANs
-Wireless body area network(WBAN) has shown great potential in improving
healthcare quality not only for patients but also for medical staff. However,
security and privacy are still an important issue in WBANs especially in
multi-hop architectures. In this paper, we propose and present the design and
the evaluation of a secure lightweight and energy efficient authentication
scheme BANZKP based on an efficient cryptographic protocol, Zero Knowledge
Proof (ZKP) and a commitment scheme. ZKP is used to confirm the identify of the
sensor nodes, with small computational requirement, which is favorable for body
sensors given their limited resources, while the commitment scheme is used to
deal with replay attacks and hence the injection attacks by committing a
message and revealing the key later. Our scheme reduces the memory requirement
by 56.13 % compared to TinyZKP [13], the comparable alternative so far for Body
Area Networks, and uses 10 % less energy
BAN-GZKP: Optimal Zero Knowledge Proof based Scheme for Wireless Body Area Networks
BANZKP is the best to date Zero Knowledge Proof (ZKP) based secure
lightweight and energy efficient authentication scheme designed for Wireless
Area Network (WBAN). It is vulnerable to several security attacks such as the
replay attack, Distributed Denial-of-Service (DDoS) attacks at sink and
redundancy information crack. However, BANZKP needs an end-to-end
authentication which is not compliant with the human body postural mobility. We
propose a new scheme BAN-GZKP. Our scheme improves both the security and
postural mobility resilience of BANZKP. Moreover, BAN-GZKP uses only a
three-phase authentication which is optimal in the class of ZKP protocols. To
fix the security vulnerabilities of BANZKP, BAN-GZKP uses a novel random key
allocation and a Hop-by-Hop authentication definition. We further prove the
reliability of our scheme to various attacks including those to which BANZKP is
vulnerable. Furthermore, via extensive simulations we prove that our scheme,
BAN-GZKP, outperforms BANZKP in terms of reliability to human body postural
mobility for various network parameters (end-to-end delay, number of packets
exchanged in the network, number of transmissions). We compared both schemes
using representative convergecast strategies with various transmission rates
and human postural mobility. Finally, it is important to mention that BAN-GZKP
has no additional cost compared to BANZKP in terms memory, computational
complexity or energy consumption
Solutions and Tools for Secure Communication in Wireless Sensor Networks
Secure communication is considered a vital requirement in Wireless Sensor Network (WSN) applications. Such a requirement embraces different aspects, including confidentiality, integrity and authenticity of exchanged information, proper management of security material, and effective prevention and reaction against security threats and attacks. However, WSNs are mainly composed of resource-constrained devices. That is, network nodes feature reduced capabilities, especially in terms of memory storage, computing power, transmission rate, and energy availability.
As a consequence, assuring secure communication in WSNs results to be more difficult than in other kinds of network. In fact, trading effectiveness of adopted solutions with their efficiency becomes far more important. In addition, specific device classes or technologies may require to design ad hoc security solutions. Also, it is necessary to efficiently manage security material, and dynamically cope with changes of security requirements. Finally, security threats and countermeasures have to be carefully considered since from the network design phase.
This Ph.D. dissertion considers secure communication in WSNs, and provides the following contributions. First, we provide a performance evaluation of IEEE 802.15.4 security services. Then, we focus on the ZigBee technology and its security services, and propose possible solutions to some deficiencies and inefficiencies. Second, we present HISS, a highly scalable and efficient key management scheme, able to contrast collusion attacks while displaying a graceful degradation of performance. Third, we present STaR, a software component for WSNs that secures multiple traffic flows at the same time. It is transparent to the application, and provides runtime reconfigurability, thus coping with dynamic changes of security requirements. Finally, we describe ASF, our attack simulation framework for WSNs. Such a tool helps network designers to quantitatively evaluate effects of security attacks, produce an attack ranking based on their severity, and thus select the most appropriate countermeasures
A Survey on Wireless Security: Technical Challenges, Recent Advances and Future Trends
This paper examines the security vulnerabilities and threats imposed by the
inherent open nature of wireless communications and to devise efficient defense
mechanisms for improving the wireless network security. We first summarize the
security requirements of wireless networks, including their authenticity,
confidentiality, integrity and availability issues. Next, a comprehensive
overview of security attacks encountered in wireless networks is presented in
view of the network protocol architecture, where the potential security threats
are discussed at each protocol layer. We also provide a survey of the existing
security protocols and algorithms that are adopted in the existing wireless
network standards, such as the Bluetooth, Wi-Fi, WiMAX, and the long-term
evolution (LTE) systems. Then, we discuss the state-of-the-art in
physical-layer security, which is an emerging technique of securing the open
communications environment against eavesdropping attacks at the physical layer.
We also introduce the family of various jamming attacks and their
counter-measures, including the constant jammer, intermittent jammer, reactive
jammer, adaptive jammer and intelligent jammer. Additionally, we discuss the
integration of physical-layer security into existing authentication and
cryptography mechanisms for further securing wireless networks. Finally, some
technical challenges which remain unresolved at the time of writing are
summarized and the future trends in wireless security are discussed.Comment: 36 pages. Accepted to Appear in Proceedings of the IEEE, 201
Survey of main challenges (security and privacy) in wireless body area networks for healthcare applications
Abstract Wireless Body Area Network (WBAN) is a new trend in the technology that provides remote mechanism to monitor and collect patient's health record data using wearable sensors. It is widely recognized that a high level of system security and privacy play a key role in protecting these data when being used by the healthcare professionals and during storage to ensure that patient's records are kept safe from intruder's danger. It is therefore of great interest to discuss security and privacy issues in WBANs. In this paper, we reviewed WBAN communication architecture, security and privacy requirements and security threats and the primary challenges in WBANs to these systems based on the latest standards and publications. This paper also covers the state-of-art security measures and research in WBAN. Finally, open areas for future research and enhancements are explored
Versatile Extensible Security System for Mobile Ad Hoc Networks
Mobile Ad hoc Network (MANET) is becoming more and more popular in scientific, government, and general applications, but security system for MANET is still at infant stage. Currently, there are not many security systems that provide extensive security coverage for MANET. Moreover, most of these security systems assume nodes have infinite computation power and energy; an assumption that is not true for many mobiles. Versatile and Extensible System (VESS) is a powerful and versatile general-purpose security suite that comprises of modified versions of existing encryption and authentication schemes. VESS uses a simple and network-efficient but still reliable authentication scheme. The security suite offers four levels of security adjustments base on different encryption strength. Each level is designed to suit different network needs (performance and/or security), and the security suite allows individual end-to-end pair-wise security level adjustments; a big advantage for highly heterogeneous network. This versatility and adjustability let each pair of talking nodes in the network can choose a security level that prioritize either performance or security, or nodes can also choose a level that carefully balance between security strength and network performance. Finally, the security suite, with its existing authentication and encryption systems, is a framework that allows easy future extension and modification
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