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Traditional key management techniques, such as public key cryptography or key distribution center (e.g., Kerberos), are often not effective for wireless sensor networks for the serious limitations in terms of computational power, energy supply, network bandwidth and defection of centra authority. In order to balance the security and efficiency, we propose a new scheme by employing LU Composition techniques...
Due to the property of sensor devices, the sensor networks may easily be compromised by attackers who modify messages or provide misleading information to other sensor nodes. On the other hand, nodes in a sensor network may be lost because of power exhaustion or malicious attacks. Therefore, new node deployment is necessary. Based on the one-way hash function, this paper will present a new dynamic...
Resource-constraint nature of wireless sensor network (WSN) makes the security issue certainly a big challenge. An efficient key management scheme is the pre-requisite to ensure security in WSN. In this paper we present a secured key management protocol (SecCOSEN) adopted on COSEN, a chain oriented sensor network, which is used for periodic data collection. SecCOSEN uses partial key pre-distribution...
Key management is a key concern for security operation in sensor network. Most existing key management schemes try to establish shared keys for all pairs of neighbor sensors, no matter whether these nodes communicate with each other or not, and causes large overhead. In this paper, we propose a novel key agreement protocol based on pairing-based cryptography. The proposed protocol reduces the key...
Hierarchy-based wireless sensor networks (WSNs) achieve excellent performance with reserving energy consumption and decreasing system delay. However, distinguished hierarchy-based research such as LEACH (low-energy adaptive clustering hierarchy) does not consider a security issue for ensuring the protection of the network. Due to the peculiar character of LEACH such as round base operation and header...
Key management is a core mechanism to ensure the security of applications and network services in wireless sensor networks. It includes two aspects: key distribution and key revocation. Many key management protocols have been specifically designed for wireless sensor networks. However, most of the key management protocols focus on the establishment of the required keys or the removal of the compromised...
Secure key establishment is a fundamental security service in wireless sensor networks. It enables sensor nodes to secure their communications from malicious eavesdropping or tampering. However, due to restricted computing power and limited memory space, traditional public key cryptosystems may not be applicable to sensor hardware. To address this problem, we propose a lightweight distributed key...
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