... 0.0194(d) δfFigure 4: Detecting periodic pulsing attacks using Vanguard.results for the stochastic pulsing attacks. Each subfigure alsoincludes the detection times for the flooding attacks. Notethat ... M)Flooding(b) Stochastic pulsing attacks and flooding attacks Figure 7: Average detection time for pulsing and flooding attacks using Vanguard.12 EURASIP Journal on Advances in Signal ProcessingTable ... idle periods existing in the flow. First, these idleperiods remain in the whole training period and thus result in “false” thresholds for raand δf. Therefore, a suddenincrease in the TCP data...
... statistical methods for securing wireless localization insensor networks, in Proc International Symposium onInformation Processing inSensorNetworks (IPSN), California, 91–98(April 2005)20. ... Washington, 1279–1284(November 2007)23. D Ma, MJ Er, B Wang, HB Lim, K-hop statistics inwirelesssensor networks, in Proc International Conference on Intelligent Sensors, SensorNetworks andInformation ... monitoring, medicine care, and transporta-tion control. Spatial information is crucial for sensor data to be interpreted meaningfully in many domainssuch as environmental monitoring, smart building...
... are resourceconstrained, sensor nodes cannot implement mechanisms for detecting malicious nodes. For example, putting a sensor node in promiscuous mode is not feasible. Detecting captured nodes ... small amount of information in each sensor node, so that some pair of nodes can calculatecorresponding field of the matrix, and uses it as the link key.This solution is λ-secure, meaning that keys ... algorithms in the remaining of the paper. Each sensor node i, includingthe base station, maintains the following variables.(i) Fatheri: the father of the sensorin the final spanningtree. The base...
... deployed in a sensor field to perform sensingoperations, a sensor node may fall into one of the followingstates [2].(1) Sensing. A sensing node monitors the source using anintegrated sensor, ... proposed forwirelesssensor net-works may become a limiting factor for the implementation of these solutions in real-world sensor network platforms.Building upon the breadth-first routing nature of ... multipathrouting inwirelesssensor networks, ” ACM Wireless Networks, vol. 14, no. 4, pp. 465–478, 2008.[22] A. B. Bagula and K. G. Mazandu, “Energy constrainedmultipath routing inwirelesssensor networks, ”...
... theoretical point of view, all necessary information to infer information of the unknown states resides in the posterior distribution.Bayesian filtering involves the recursive estimation of states ... within Bayesianfiltering, which is outlined in Section 3, along with some popular filtering algorithms.2.1. Testing for normality of UWB-based distance measurementsBefore delving into the use of ... presented in Section 2 can be easily mapped into a dynamic system of the form (4)–(5). For instance, a linear constant acceleration model has been adopted for statewith ni,tdenoting the ranging...
... ArchitectureUsing Strip-Based Processing for Implementation in WirelessSensor Networks Li Wern Chew, Wai Chong Chia, Li-minn Ang, and Kah Phooi SengDepartment of Electrical and Electronic Engineering, ... Set-Partitioning in Hierarchical Trees In SPIHT coding, three sets of coordinates are encoded [5]:Type H set which holds the set of coordinates of all SOTroots, Type A set which holds the set of coordinates ... offsprings of node(i, j) be referred to as “ABCD.” Here, a total of 15 possiblecombinations of ABCD can be obtained as shown in Tab l e 3.The percentage of occurrence of possible outcomes of...
... create a fertile harvesting ground for building bot networks that are later used for various malicious purposes, including DDoS attacks. Some methods of causing a denialofservice that attacker ... recruitment of the Agent Network. Depending on the type ofdenialofservice planned, the attacker needs to find a large number of vulnerable machines to use for attacking. This can be done in a completely ... test2SummarySince the Internet appears and becomes popular, Denialofservice (DoS) attacks continues tothreaten the reliability of networking systems. All most previous approaches for protecting networks...
... khi tấn công cũng phải đi qua hướng này. DDOS - Distributed DenialOf Service. • 1998 Chương trình Trinoo Distributed DenialofService (DDoS) được viết bởi Phifli. • Tháng 5 – 1999 Trang ... 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. Khi người sử dụng vào Website này...
... @AttackIP Packet OptionsAttackSpoofsourceAttackSpoofsourceAttackSpoofsourceAttackDISTRIBUTED DENIALOF SERVICE (DDOS)GIỚI THIỆUDistributed DenialOfService (DDoS) là kỹ thuật tấn công ... AttackMitigate/StopAttackDeflect AttackPost attack ForensicEgress FilteringMIB StatisticInvidualuserNetwork Service ProviderInstall Software PatchBuild in defenseCostTraffic Pattern AnalysisPacket ... thống đang online nhằm cài đặt Agentsoftware. Chú ý, Nmap sẽ trả về những thông tin về một hệ thống đã DDoS software ToolAgent SetupAttack NetworkComminicationOS supportedInstalation Hide...
... server và tiến hành kết nối. c.Ping of death :- Kẻ tấn công gửi những gói tin IP lớn hơn số lương bytes cho phép của tin IP là 65.536 bytes.- Quá trình chia nhỏ gói tin IP thành những phần nhỏ ... thành nhiều gói tin nhỏ, mỗi gói tin có một giá trị offset riêng và có thể truyền đi theo nhiều con đường khác nhau để tới đích. Tại đích, nhờ vào giá trị offset của từng gói tin mà dữ liệu lại ... lớn của gói tin này và sẽ bị khởi động lại, hay đơn giản là sẽ bị gián đoạn giao tiếp. - Để nhận biết kẻ tấn công gửi gói tin lớn hơn gói tin cho phép thì tương đối dễ dàng. VD : Ping -l 65500...
... http://www.fc.net/phrack/files/p48/p48-14.htmlIP-spoofing Demystified by daemon9 / route / infinity for Phrack Magazine.C.13. PING FLOODINGunix: ping –s hostwindows 9x: ping –t –l 256 xxx.xxx.xxx.xxxex: ping –l 65510 address.to.the.machinenó ... Open windows.biện pháp: đóng kết nối tới x-windows port..C.4. Cố ý sử dụng UDP SERVICESrất dễ use UDP services (như echo, time, datetime, chargen) lặp lại 1 cách liên tục nhờ các IP-spoofing ... khi wind lại rất khó làm được.Một unix admin trung bình thì cũng có nhiều kinh ngiệm hơn là microsoft admin.Tóm lại unix an toàn hơn đối với DoS attack từ bên trong. Tuy nhiên microsoft lại...