denial of service in sensor networks ppt

... Rabbat and R. Nowak, “Distributed optimization in sensor networks, ” in Proceedings of the 3rd International Symposium on Information Processing in Sensor Networks (IPSN ’04),pp. 20–27, ACM, New York, ... Schwartz, “The value of clustering in distributed estimation for sensor networks, ” in Proceedings of the International Conference on Wireless Networks, Communications and Mobile Computing, vol. 2, pp. ... problem of applying classical kernel machines to distributed learning in sensor networks is that the order of the resulting models scales linearly with the number of deployed sensors and measurements. (iii)...

Ngày tải lên: 21/06/2014, 17:20

... Management 1 Quality of Service in IP Networks CH-1015 Ecublens http://icawww.epfl.ch Prof. Jean-Yves Le Boudec Prof. Andrzej Duda Prof. Patrick Thiran LCA-ISC-I&C, EPFL Queue Management 5 Principles ... flows sending large packets get more l cost of flow classification Queue Management 3 Improving QOS in IP Networks o IETF groups are working on proposals to provide better QOS control in IP networks, ... TCP l single loss recovered by Fast Retransmit o Probability p of choosing a given flow is proportional to the rate of the flow l more packets of that flow, higher probability of choosing one of...

Ngày tải lên: 06/04/2013, 11:05

Ngày tải lên: 18/10/2013, 12:15

... a network of observation and are responsible for: • maintaining a library of known attacks and their patterns; • generating, for every pair of communicating user nodes, digital evidence containing information ... rigorous is of paramount importance. Using theorem proving techni- ques, for example, will allow inferring theorems describ- ing the root cause of the incident and steps involved in the attacks. Investigating ... to Mobile Ad hoc and Sensor Networks (MASNets). The inherent characteristics of these networks, including the broad- cast and unreliable nature of links, and the absen ce of infrastructure, force...

Ngày tải lên: 21/06/2014, 02:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 23/06/2014, 00:20

... công thường là các máy có kết nối Internet bị người tấn công xâm nhập. DDOS - Distributed Denial Of Service. • 1998 Chương trình Trinoo Distributed Denial of Service (DDoS) được viết bởi Phifli. ... thấy rõ những vụ tấn công từ chối dịch vụ (Denial Of Services Attack ) và những cuộc tấn công về việc gửi nhửng gói dữ liệu tới máy chủ (Flood Data Of Services Attack) tới tấp là những mối lo ... Tấn công từ chối dịch vụ có rất nhiều dạng như Ping of Death, Teardrop, Aland Attack, Winnuke, Smurf Attack, UDP/ICMP Flooding, TCP/SYN Flooding, Attack DNS. • Qua đó chúng tôi đã tham khảo...

Ngày tải lên: 17/12/2013, 13:15

... Denial of Service I/. Giới thiệu khái quát về DoS: DoS (Denial of Service) có thể mô tả như hành động ngăn cản những người dùng ... trạng thái chờ (đợi gói tin ACK từ phía yêu cầu thiết lập kết nối) và liên tục gửi gói tin SYN ACK để thiết lập kết nối . Một cách khác là giả mạo địa chỉ IP nguồn của gói tin yêu cầu thiết lập ... người dùng cũng như các nguồn tin trên mạng (các thông tin cập nhật định tuyến giữa các router cũng nên thiết lập ở chế độ xác thực) - Xây dựng hệ thống lọc thông tin trên router, firewall… và...

Ngày tải lên: 17/12/2013, 13:15

... Tìm hiểu về DoS- Denial of Service/ Tấn công từ chối dịch vụ Trong tấn công từ chối dịch vụ, kẻ tấn công cố gắng ngăn cản người dùng truy cập thông tin hoặc dịch vụ. Bằng cách nhằm ... mail và ngăn chặn bạn nhận được các mail khác. Thực chất của tấn công bằng từ chối dịch vụ (Denial Of Services Attack) là hacker sẽ chiếm dụng một lựợng lớn tài nguyên trên server, tài nguyên ... reboot. Mới nhất là tấn công từ chối dịch vụ theo phương pháp phản xạ DRDoS (DistributedReflection Denial of Service) . Để thực hiện "Tấn công từ chối dịch vụ phân tán DDoS", kẻ tấn công tìm...

Ngày tải lên: 26/12/2013, 00:16

... legitimate users, by overloading its resources A Distributed Denial of Service ( DDoS ) • On the Internet , a distributed denial- of- service A Distributed Denial - of - Service ( DDoS ) attack: , (DDoS) ... stop Packets arriving at your firewall may be blocked there, but they may just as easily overwhelm the incoming side of your Internet connection overwhelm the incoming side of your Internet connection If ... ( DDoS ) attack: , (DDoS) attack is one in which a multitude of compromised systems attack a single target, thereby causing denial of service for users of the targeted system EC-Council Copyright...

Ngày tải lên: 06/03/2014, 15:20

... dissolving the resin covering the silicon using fuming acid. The next step involves layout reconstruction using a systema- tic combination of microscopy and invasive removal of covering layers. During layout ... of service 107 6.1 Introduction 107 6.2 Routing in mobile ad hoc networks 110 6.3 Routing with quality of service constraints 112 6.4 Quality of service routing in ad hoc networks 118 6.5 Conclusion ... with providing quality of service (QoS )in ad hoc networks. It should be pointed out that security and quality of service are two distinct attributes that are independent of each other in general....

Ngày tải lên: 25/03/2014, 12:07

... algorithms in the remaining of the paper. Each sensor node i, including the base station, maintains the following variables. (i) Father i : the father of the sensor in the final spanning tree. The base ... Cuti, C. Gardiner, C. Lynn, and P. Kruus, “TinyPK: securing sensor networks with public key technology,” in Proceedings of the 2004 ACM Workshop on Security of Ad Hoc and Sensor Networks (SASN ... every pair of sensor nodes can establish a key using the property of symmetry of polynomials. The solution is λ-secure, meaning that coalition of less than λ + 1 sensor nodes knows nothing about...

Ngày tải lên: 21/06/2014, 11:20

... “Distributed environmental mon- itorning using random sensor networks, ” in Proceedings of the 2nd International Workshop on Information Processing in Sensor Networks, pp. 582–592, Palo Alto, Calif, ... U. Mitra, “Boundary estimation in sensor networks: theory and methods,” in Proceedings of the 2nd International Workshop on Information Processing in Sensor Networks, pp. 80–95, Palo Alto, Calif, ... Networking observation and (ii) bandwidth constraints [10]. In [11, 12], the authors examine the problem of determining edges of natural phenomena through proper processing of data collected by sensor...

Ngày tải lên: 21/06/2014, 17:20

... schemes. In these schemes, nodes differentiate their roles as service sensors and worker sensors. Service sensors are used to disseminate keying information to the work sensors in the vicinity after ... only in charge of disseminating initial keys to its neighboring ordinary nodes and replies those request messages which are consistent with what its two neighboring ordinary nodes claim. In other ... with the increase of the number of common auxiliary nodes. In addition, it also shows an interesting phenomenon, that is, increasing the number of common auxiliary nodes does not result in a remarkable...

Ngày tải lên: 21/06/2014, 17:20

... and software are discussed. The use of paper and plastic pipes are considered in detail, explaining the advantages of these devices in the process of burying and unburying sensor nodes. The in uences ... evaluation of wireless underground-to-underground communication in wireless underground sensor networks, ” in Proceedings of the 5th IEEE International Conference on Distributed Computing in Sensor Systems ... experiments. (c) Grid of aboveground nodes. 3.1. The Digging Process. Burying and unburying sensor nodes are very time-consuming tasks in underground set- tings. For instance, in our experimental...

Ngày tải lên: 21/06/2014, 23:20

... aware chain routing protocol for continuous data dissemination in wireless sensor networks, ” in Proceedings of the 1st Interna- tional Conference on Intelligent Sensors, Sensor Networks and Information ... reach the sink with minimal routing overhead. 3. Modes of Operation for Updating Status Information We propose various modes of operation for updating status information of the sensor nodes in the ... presents various modes of operation involved in updating procedure of status information in routing tables of sensor nodes. Section 4 presents simulation results considering various performance...

Ngày tải lên: 21/06/2014, 23:20

... distribution, and reproduction in any medium, provided the original work is properly cited. 1. Introduction Body Sensor Networks (BSNs) are becoming increasingly important for sporting activities, unobtrusive ... area networks (WPAN),” 2006. [26] A. El-Hoiydi and J D. Decotignie, “WiseMAC: an ultra low power MAC protocol for the downlink of infrastructure wireless sensor networks, ” in Proceedings of the ... developing MIThril that gives a complete insight of human-machine interface [8] HIT focuses on quality interfaces and innovative wearable computers [9]. IEEE 802.15.6 aims to provide power-efficient in- body...

Ngày tải lên: 21/06/2014, 23:20

... routing algorithm for implanted sen- sor networks, ” in Proceedings of the 1st IEEE International Con- ference on Distributed Computing in Sensor Systems (DCOSS ’05), vol. 3560 of Lecture Notes in ... Number of sensor nodes versus average temperature rise. age of the lost packet in terms of the number of sensor nodes in the network. The scalability is measured in the range of 20 to 100, and in ... avoid excessively raising temperature of sensor nodes, periodically maintaining (updating) routes is required. The maintenance of routing also helps in adapting frequent network topology changes...

Ngày tải lên: 22/06/2014, 06:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 19:20