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Key establishment in wireless sensor networks is a challenging problem for the constrained energy, memory, and computational capabilities of the sensor nodes. Most existing key management schemes try to establish pairwise keys for each pair of neighbor sensors, whether these nodes communicate with each other or not, and this causes large overhead. In this paper, focusing on the management of encryption...
Wireless sensor networks are widely used in a variety of commercial and military applications. As a fundamental requirement for providing security functionality in sensor networks, key management plays an essential role in authentication and encryption. In this paper, we propose a Refined Key Link Tree (RKLT) scheme that incorporates dirty key path into the key link tree-based group key management...
With the appearance of mobile office and the development of wireless network technology, the wireless mobile office system emerge as the times require. The security problem of private network and Internet wireless connection is increasingly outstanding. In this paper, through the deep research on the wireless security problem, using SSL VPN, AES and ECC technology, puts forward a security strategy...
Radio frequency identification (RFID) systems can be applied to various areas. A RFID system is composed of tag, reader and host computer. The reader has an antenna for transferring the energy and sending/receiving of data. Recently, wireless communication between Reader and Host Computer isused much. In addition, wireless communication is good for mobility. But, wireless communication is weak to...
This paper introduces a new (t, n) secret sharing scheme for image encryption. The proposed method encrypts the secret image into two images as the same size of the original image, which one is the public image (called the encrypted image) and another is to be shared among n participants using a new secret sharing method based on the Shamir’s secret sharing. In the new secret sharing scheme, t (or...
In order to encapsulate data and to convey information more efficiently and more security, a draft frame based on active block ciphers for application layer of Internet which could transmit orange data into semantic security and semantic integrity was designed according to scalable purpose. To different network environment, there were different intelligent choices about block cipher algorithms to...
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