session hijacking over wireless

Ethical Hacking and Countermeasures v6 module 15 session hijacking

Ngày tải lên : 26/12/2013, 20:27

... : Session Hijacking Difference between Spoofing and Hijacking Steps to Conduct a Session Hijacking Attack Types of S i Hijacking f Session ij ki Performing Sequence Number Prediction TCP/IP Hijacking ... Module Flow Session Hijacking Spoofing vs Hijacking TCP/ IP Hijacking Session Hijacking Steps Session Hijacking Tools Types Of Session Hijacking EC-Council Sequence Number Prediction Countermeasures ... Strictly Prohibited What is Session Hijacking Session Hijacking is when an attacker gets access to the session state of a particular user The attacker steals a valid session ID which is used to...

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Tìm hiểu về an ninh mạng và kỹ thuật Session Hijacking

Ngày tải lên : 09/03/2014, 01:44

... thuật Session Hijacking CHƯƠNG - TỔNG QUAN VỀ KỸ THUẬT TẤN CÔNG SESION HIJACKING 2.1 GIỚI THIỆU VỀ KỸ THUẬT TẤN CÔNG SESSION HIJACKING Thuật ngữ chiếm quyền điều khiển session (session hijacking) ... Khải – CCMM03A – Nhóm Trang 29 Tìm hiểu an ninh mạng kỹ thuật Session Hijacking 2.5.2 Session Hijacking mức ứng dụng Trên công Session Hijacking, mã thông báo phiên bị đánh cắp mã thông báo phiên ... dụ công Session Hijacking Hình 2.4 – Minh họa công Session Hijacking Quá trình chiếm quyền điều khiển phiên o o o o o Lệnh xâm nhập: bắt đầu truyền gói liệu đến chủ mục tiêu Dự đoán Session ID:...

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Báo cáo " Congestion control of Wavelet image compression over wireless networks " docx

Ngày tải lên : 28/03/2014, 13:20

... incompleted, often poor and time delayed In order to enable wireless image and multimedia communication, the bottlenecks to communicating image data over wireless must be addressed Network congestion control ... arriving packets is based on overflow of the buffer in nodes [2] In this paper, we use fuzzy logic techniques to develop a new queue management scheme in hop by hop wireless networks The application ... hop by hop wireless networks 3.3 Fuzzy control algorithm Our model of fuzzy control system is based on a queue management scheme to provide transmission rate control in hop by hop wireless networks...

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Báo cáo toán học: " Performance of the audio signals transmission over wireless networks with the channel interleaving considerations" pot

Ngày tải lên : 20/06/2014, 20:20

... h.kazemian@londonmet.ac.uk Abstract This article studies a vital issue in wireless communications, which is the transmission of audio signals over wireless networks It presents a novel interleaver scheme for ... received audio signal It improves the amount of the throughput over the wireless link through the packet loss reduction Keywords: wireless networks; Bluetooth; fading channels; interleaving techniques; ... packets over correlated fading channel with different Vc Figure 15 NLF of audio signal versus SNR over correlated fading channel with different Vc Figure 16 Throughput of audio signal versus SNR over...

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Báo cáo toán học: " An occupancy-based and channel-aware multilevel adaptive scheme for video communications over wireless channels" pptx

Ngày tải lên : 20/06/2014, 21:20

... video streaming over wireless multi-hop networks The performance evaluation in [13] was done in terms of decoded video average PSNR While several schemes for video streaming over wireless channels ... over IP and Wireless Networks: Compression, Networking, and Systems (Academic Press, New York, 2007) C Hsu, A Ortega, M Khansari, Rate control for robust video transmission over burst-error wireless ... http://jwcn.eurasipjournals.com/content/2011/1/199 Page of 17 Figure Video streaming model over a wireless channel ¯ branch defined by Gγl (s) = (1 − sγl ) Moreover γl = ( l · log2 M · Eb N0 ) L, where l = E[A2 ] is the ¯...

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báo cáo hóa học: " TCP NCE: A unified solution for non-congestion events to improve the performance of TCP over wireless networks" docx

Ngày tải lên : 21/06/2014, 02:20

... improve the performance of TCP over wireless networks To address this issue, we propose a unified solution called TCP NCE for improving the performance of TCP over wireless networks by reducing ... successfully over wireless networks, the modification of TCP congestion control algorithms is necessary especially fast retransmission and recovery For the higher performance of TCP over Sreekumari ... contention of nodes Moreover, in wireless networks, the interferences between neighboring nodes are much higher compared to local area networks As a result, the bit error rates of wireless links are...

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Báo cáo hóa học: " Research Article Opportunistic Multicasting Scheduling Using Erasure-Correction Coding over Wireless Channels Quang Le-Dang and Tho Le-Ngoc" docx

Ngày tải lên : 21/06/2014, 11:20

... time/frequency diversity to enhance the throughput performance over wireless fading channels In the proposed EURASIP Journal on Wireless Communications and Networking 15 M − k parity packets ... Journal on Wireless Communications and Networking References [1] C Eklund, R B Marks, S Ponnuswamy, K L Stanwood, and N J van Waes, WirelessMAN: Inside the IEEE802.16 Standard for Wireless Metropolitan ... symbols as overhead The transmission rate (in b/s/Hz) to send n packets is selected as rECOM = log2 + γρ∗ , (6) where ρ∗ is the predetermined channel gain threshold Taking into account the overhead...

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Báo cáo hóa học: " Research Article Analysis of Distributed Consensus Time Synchronization with Gaussian Delay over Wireless " pot

Ngày tải lên : 21/06/2014, 20:20

... However, since the pulse signal is received in noise (and may additionally experience fading over the wireless link), the actual arrival time estimate produced at the receiver will have an associated ... have identical noise coming from some potentially overlapping neighbors 2.3 Network Model and Some Preliminaries In the following, we model a wireless sensor network as an undirected graph Node ... DCTS algorithm in wireless sensor networks Appendices A Proof of Lemma Conclusions In this paper, we present theoretical results on the convergence of the DCTS algorithm for wireless sensor networks...

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Báo cáo hóa học: "Research Article Auction-Based Resource Allocation for Cooperative Video Transmission Protocols over Wireless Networks" ppt

Ngày tải lên : 21/06/2014, 20:20

... signiﬁcant PSNR gain over the traditional direct video transmission Especially by employing the cooperative video transmission with side information, we have obtained up to dB gain over the amplify-and-forward ... transmission, we study the video communications over the full-ﬂedged cooperative network, and we focus on how to use relay nodes to improve the overall system performance, and especially on how ... resources for performance improvement Moreover, because of the broadcast nature of the phase in cooperative transmission, the source information is distributed over the relays without any cost We can...

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báo cáo hóa học:" Performance of the audio signals transmission over wireless networks with the channel interleaving " potx

Ngày tải lên : 21/06/2014, 20:20

... h.kazemian@londonmet.ac.uk Abstract This article studies a vital issue in wireless communications, which is the transmission of audio signals over wireless networks It presents a novel interleaver scheme for ... received audio signal It improves the amount of the throughput over the wireless link through the packet loss reduction Keywords: wireless networks; Bluetooth; fading channels; interleaving techniques; ... packets over correlated fading channel with different Vc Figure 15 NLF of audio signal versus SNR over correlated fading channel with different Vc Figure 16 Throughput of audio signal versus SNR over...

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Báo cáo hóa học: " Research Article Fast and Accurate Video PQoS Estimation over Wireless Networks" pot

Ngày tải lên : 21/06/2014, 22:20

... considered only the packet loss during the transmission over the wireless link without taking into account the congestion due to the background traffic over the same link and the video resolution in terms ... system performances varying the wireless link quality in terms of signal power level Using network stumbler [37] we obtained the signal power level values over the wireless link depending on the ... measurement times with the aim of considering the natural wireless link and background traffic fluctuations In order to measure the video quality over the wireless network we used MSU [38] This free program...

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Báo cáo hóa học: "Editorial Multimedia over Wireless Networks" pptx

Ngày tải lên : 21/06/2014, 22:20

... handover mobility scheme for next-generation IP-based wireless systems In the fourth paper, A Fernandez-Duran et al propose a dimensioning method for conversational video applications in wireless ... the transmission of multiple video streams over a wireless local area network (WLAN) A cross-layer optimization framework is proposed to minimize the wireless transceiver energy consumption while ... cellular terminals This paper presents a new and simple dimensioning model of conversational video over wireless LAN WLAN is addressed under the optimal network throughput and the perspective of video...

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Báo cáo hóa học: "Research Article An Energy-Efﬁcient Link Layer Protocol for Reliable Transmission over Wireless Networks" pdf

Ngày tải lên : 21/06/2014, 22:20

... virtual fragment is covered by a separate checksum In this section, we develop a stochastic model of SRVF by operating over a Markov chain of arbitrary order 6 EURASIP Journal on Wireless Communications ... of Reliable Protocols We now use wireless traces collected over real networks to empirically evaluate protocols under study The ﬁrst part of EURASIP Journal on Wireless Communications and Networking ... used in wireless ARQ protocols,” Wireless Networks, vol 5, pp 279–286, 1999 [14] Y Sankarasubramaniam, I F Akyildiz, and S W McLaughlin, “Energy eﬃciency based packet size optimization in wireless...

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Báo cáo hóa học: "Research Article OMNeT++-Based Cross-Layer Simulator for Content Transmission over Wireless Ad Hoc Networks" pot

Ngày tải lên : 21/06/2014, 23:20

... Once the session is established, data can be transmitted When the transmission conditions are too degraded and no data is received, a new start request Client decoder session Server session encoder ... content over hybrid wired /wireless ad hoc networks and the design of innovative radio access schemes Details of the API allowing highfidelity simulations by transmitting bits and bytes over the ... communications at bit level allows to finely take into account the effect of the wireless channel at all protocol layers Moreover, this level of detail is required to simulate some communication schemes...

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Báo cáo hóa học: "Research Article Intelligent Stale-Frame Discards for Real-Time Video Streaming over Wireless Ad Hoc Networks" ppt

Ngày tải lên : 21/06/2014, 23:20

... for the sender to recover from a link failure In the experiments, we assume that either IN A or IN B can move away or power down while a video stream is transmitted over the wireless ad hoc network ... discards (I-EPD) scheme for jitter-tolerant video streaming over a multi-hop wireless ad hoc network A video packet temporarily buﬀered at IN on a wireless ad hoc network may exceed its end-to-end jitter ... Greece, September 2007 [10] P V Tien, “Eﬃcient relaying of video packets over wireless ad hoc devices,” in Proceedings of the IEEE Wireless and Microwave Technology Conference (WAMICON ’06), pp 1–5,...

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Báo cáo hóa học: " Research Article Robust and Scalable Transmission of Arbitrary 3D Models over Wireless Networks" potx

Ngày tải lên : 22/06/2014, 00:20

... frame: FDA = overlap(GT, AR) , (1/2) #GTo + #ARo (17) where again #GTo is the number of GT objects for a given frame (#ARo accordingly) The overlap ratio is given by #(ARo →GTo ) overlap(GT, AR) ... Journal on Image and Video Processing Overlap ratio thresholded (ORT) [32] TN This metric takes into account a required spatial overlap between the objects The overlap is deﬁned by a minimal threshold: ... of overlapping frames Result tracks Step [o 11, o 12, , o 1Nr] [o 21, o 22, , o 2Nr] Frame no (time) { Overlap o i j ··· [o Ng1, , o NgNr] Ng ×Nr correspondence matrix with number of overlapping...

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Báo cáo hóa học: " Research Article Robust and Scalable Transmission of Arbitrary 3D Models over Wireless Networks" pptx

Ngày tải lên : 22/06/2014, 00:20

... connectivity, there has been a surge of research activities in the area of wireless communication [13] Differing from wired communication, wireless communication has two challenging aspects: first, is the ... driving under a bridge, or when many users try to get onto a wireless network in a hotel lobby There is significant research on packet loss in wireless network The authors in [14] conducted sensor node’s ... discuss novel strategies for wireless network management, including QoS provisioning, hybrid channel allocation, and database and location management schemes for wireless networks [20–24]; however,...

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Báo cáo hóa học: " Research Article Scalable and Media Aware Adaptive Video Streaming over Wireless Networks" pdf

Ngày tải lên : 22/06/2014, 01:20

... and retransmitted below application layer (e.g., ARQ at radio link control (RLC) layer) Moreover, in a wireless system, packet scheduling on the shared resource occurs at MAC or RLC layers independently ... the current packet will be delayed or sent to RLC layer All streams are next transmitted over the same wireless transport channel and when an RTP packet reaches RLC layer, all necessary time slots ... × tti, and r is a ﬁxed integer value which depends on RLC conﬁguration Moreover, we estimate the average value of TT over the RTP packet transmission duration by the average value of TT(n−r) In...

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Báo cáo hóa học: " Research Article TCP Trafﬁc Control Evaluation and Reduction over Wireless Networks Using Parallel Sequential Decoding Mechanism" pptx

Ngày tải lên : 22/06/2014, 19:20

... packets is being reduced) WIRELESS ROUTER SYSTEM WITH PARALLEL SEQUENTIAL DECODERS This section provides a study over a wireless router that manages all the traﬃc coming from wireless networks Our ... into a code word of length n > k This method presents very high code rates, k/n (the overall data rate is Roverall = (n/k)Rsource ), usually above 0.95 This leads to high information content in ... packet over the channel (i.e., propagation time plus transmission time) We assume that all incoming packets have the same size This is the case if we send Internet packets (typically of size KB) over...

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