Wireless Network Security
Mostrando 13-19 de 19 artigos, teses e dissertações.
-
13. A VPN (Virtual Private Network) design based on reconfigurable computing and applied to mobile robots / Projeto de uma VPN(Rede Privada Virtual) baseada em computação reconfigurável e aplicada a robôs móveis
This work designs a system that implements a VPN using FPGA (Field Programmable Gate Array) reprogrammable circuits, which are the basis of reconfigurable computing. VPNs use cryptography to allow private communication between parts. In this manner, the computational cost of the cryptography is handled by the hardware, achieving great performance and allowin
Publicado em: 2007
-
14. Um middleware reconfigurÃvel para redes de sensores sem fio
The WSN attractivity for environment conditions monitoring and to be the bridge between the physical and virtual world has been increasing due to the advances in the micro-electronics, which enabled the production of several sensor types like illumination, humidity, temperature, smoke, radiation, acoustic, seismic, etc. in a chip that processes the signal an
Publicado em: 2006
-
15. Ordenação de eventos e interpretação de contextos em redes de atuadores e sensores sem fio para a classe de aplicações de preparação para emergência.
Wireless Sensor and Actor Networks (WSANs) are increasingly being deployed for fine-grain monitoring of physical environments subjected to emergency situations such as fire, leaking of toxic gases and explosions. In these environments a reliable interpretation of the collected events is very important. However, the order in which events are received can inte
Publicado em: 2006
-
16. Analise de desempenho de redes de sensores sem fio / Analysis of wireless sensor networks perfomance
Wireless sensor networks have deserved special attention in the last years due to their intrinsic characteristics that become them attractive in various applications, such as in the industrial activities, in the environment monitoring and security, among others. The same characteristics that become the wireless sensor networks attractive make hard the analys
Publicado em: 2005
-
17. Segurança em redes locais sem fio
Esta dissertação apresenta os principais conceitos e tipos de redes locais sem fio. Os padrões IEEE 802.11, 802.1X e WPA são expostos, e suas fraquezas são apontadas e discutidas. Um estudo com base nos algoritmos criptográficos RC4 e WEP também é apresentado. Com a indicação das principais vulnerabilidades das redes locais sem fio, um teste de inv
Publicado em: 2005
-
18. Estudo comparativo dos aspectos de segurança em redes WWAN, WLAN e WPAN
The constant evolution 01 wireless technologies have prompted an increasing interest lor mobile computing in general, which in turn have contributed to advancements in mobile communication. If, on one side, wireless networks opened the possibilities for personal service businesses, they also exposed a whole new range 01 serious security issues such as greate
Publicado em: 2003
-
19. Análise de desempenho de uma rede local sem fio para aplicações multimídia
This work presents a methodology that supplies subsidies in order to evaluate the acting of multimedia applications in Wireless Local Area Network. To understand the context of the work first we described some theoretical fundamentals on Wireless Local Area Network (WLAN) and Multimedia Applications. In what it concerns the Wireless Local Area Network, stand
Publicado em: 2001