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In this paper, a new proactive verifiable secret sharing (PVSS) scheme is proposed in an active mobile adversary setting. To the best of our knowledge, the only unconditionally secure PVSS is proposed in ASIACRYPT'02 by D'Arco and Stinson. In this protocol, the authors assume the existence of private channels as well as an authenticated broadcast channel. This scheme uses symmetric bivariate polynomials...
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Security is an important aspect for the future wireless networks. Since the number of network nodes increases constantly, and, in addition, the networks are decentralized and ad-hoc in nature, it becomes more challenging to apply the current cryptographic methods that require exchange of keys between the communicating parties. Information-theoretic secrecy is an emerging security field that explores...
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2010 Proceedings IEEE INFOCOM > 1 - 9
Cloud computing is an emerging computing paradigm in which resources of the computing infrastructure are provided as services over the Internet. As promising as it is, this paradigm also brings forth many new challenges for data security and access control when users outsource sensitive data for sharing on cloud servers, which are not within the same trusted domain as data owners. To keep sensitive...
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2010 Proceedings IEEE INFOCOM > 1 - 9
Neighbor discovery is a fundamental requirement and need be done frequently in underwater acoustic networks (UANs) with floating node mobility. In hostile environments, neighbor discovery is vulnerable to the wormhole attack by which the adversary uses secret wormhole links to make distant nodes falsely accept each other as neighbors. The wormhole attack may lead to many undesirable consequences and...
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In the Internet, nodes are identified using IP addresses that depend on their topological location. IPv4/IPv6 translation technology involves address mapping between IPv6 and IPv4 nodes and the methods used to translate protocols, where nodes are in their respective IP version of network. A detailed study is made on the IPv6 addressing architecture, various IPv6 configuring mechanisms and obtaining...
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As developing the internet a variety of services emerge and service providers serve services such as using users' private information. Service providers require many types of information related users even including sensitive private information to serve a service with high quality, but users are reluctant to disclose their private information. Because if the private information is leaked it will...
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Along with the development of information technology, information security is becoming an important problem in the stability of electric power systems. Cryptographic methods play key roles in achieving the information security goals for the electric power industry. However, the final cryptographic solutions are incomplete without effective key management. This paper addresses issues of key management...
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Dynamics of sensor networks make security one of the top issues we should pay attention to. Sensor networks can be deployed in hostile environments where their nodes are easy to be captured or re-programmed for deleterious use by an adversary. Therefore, it is necessary to protect communications between sensor nodes through cryptographic methods. To address this, symmetric key management in wireless...
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Several protocols have been proposed to defend against wormhole attacks in sensor networks by adopting cryptographic methods, packet leashes, directional antennas, or visualization, etc. In this paper, we propose a local energy-efficient method to detect wormhole attacks. This method can be applied in sensor networks with metric-based routing protocols and is independent of data aggregation. We define...
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2008 IEEE International Conference on Communications > 1469 - 1473
Data security, since antiquity, relies on cryptography. Cryptography is as good as the inability of a person or a computing machine to "break" the generated cipher code. It has been demonstrated that this inability is temporary because some strong cryptographic methods that were believed to be unbreakable have been broken. Thus, as cryptography is seeking new and more difficult cryptographic...
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Dynamics of wireless sensor networks (WSN) make security one of the top issues we should pay attention to. WSN's can be deployed in hostile environments where their nodes are easy to be captured or re-programmed for deleterious use by an adversary. Therefore, it is necessary to protect communications between sensor nodes through cryptographic methods. To address this, symmetric key management in wireless...
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Steganography is the art and science of hiding information. The goal of steganography is to avoid drawing suspicion to the transmission of a hidden message. The success of steganography depends on the secrecy of the cover carrier. Once the steganographic carrier is disclosed then the security depends on the robustness of the algorithm and the cryptographic methods used. Therefore, to maintain secrecy...
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The wireless and resource-constraint nature of a sensor network makes it an ideal medium for attackers to do any kinds of vicious things. In this paper, we describe PLUS, a parameterized and localized trust management scheme for sensor networks security, where each sensor node maintains highly abstracted parameters, rates the trustworthiness of its interested neighbors to adopt appropriate cryptographic...
