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 Key Pre-distribution in Wireless Sensor Networks. Technique to achieve secure communication in distance node and increase scalability of network using Steiner Triple System in Wireless Sensor Networks
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Key Pre-distribution in Wireless Sensor Networks. Technique to achieve secure communication in distance node and increase scalability of network using Steiner Triple System in Wireless Sensor Networks

автор Sourav K.A. издательство Книга по Требованию Книги
Cтраниц 68        мягкая обложка       
Аннотация:Hence nodes can communicate using the built in secret keys. Distribution of keys among the sensor nodes is a challenging task. To overcome this we propose a cluster based key predistribution using Steiner Triple System. Number of sensor nodes are usually much higher than the number of keys available. Using dummy node concept the scalability of network can be increase. Sensor nodes are tiny devices, with less computational power and memory capacity. In this paper we use Steiner Triple system (STS) which is a combinatorial design to distribute the keys among the sensor nodes. Thus, a faster communication is achieved. However, STS is not an appropriate candidate for large networks, where sensors are not within the communication range of each other. As the keys are built into the nodes, no path key establishment phase is required for secure communication. We evaluated the resiliency of our proposed system and found to have a better resiliency. For secure communication, the secret keys must be built into the nodes before deployment.
Автор: Sourav K.A.
Издательство: Книга по Требованию
Год:2010
Цена:
1893 руб
Нет в наличии
Поиск: Key Pre-distribution in Wireless Sensor Networks. Technique to achieve secure communication in distance node and increase scalability of network using Steiner Triple System in Wireless Sensor Networks
НОВЫЙ ГОД СИМВОЛ 2013 ГОДАУКРАШЕНИЯ
КАРНАВАЛ НА НОВЫЙ ГОД РАСПРОДАЖА
Ортомолекулярная медицина Orthomol Устрание причин заболеваний. Ортомоль это новый метод для лечения и профилактики болезней. Orthomol - ортомолекулярная медицина.
Беспроводные сети

В протоколе KIP предусмотрена генерация нового 128-битного ключа для каждого передаваемого пакета. Кроме того, контрольные криптографические суммы в WPA рассчитываются по новому методу под названием MIC (Message I egri y Code). В каждый кадр здесь помещается специальный восьмибайтный код целостности сообщения, проверка которого позволяет отражать атаки с применением подложных пакетов. В итоге получается, что каждый передаваемый по сети пакет данных имеет собственный уникальный ключ, а каждое устройство беспроводной сети наделяется динамически изменяемым ключом. Кроме того, протокол WPA поддерживает шифрование по стандарту AES (Adva ced E cryp io S a dard), то есть по усовершенствованному стандарту шифрования, который отличается более стойким криптоалгоритмом, чем это реализовано в протоколах WEP и KIP. При развёртывании беспроводных сетей в домашних условиях или небольших офисах обычно используется вариант протокола безопасности WPA на основе общих ключей – WPA-PSK (Pre Shared Key). В дальнейшем мы будем рассматривать только вариант WPA-PSK, не касаясь вариантов протокола WPA, ориентированных на корпоративные сети, где авторизация пользователей проводится на отдельном RADIUS-сервере.
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