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injection attack</title> <meta name="description" content="Search results for: Bias injection attack"> <meta name="keywords" content="Bias injection attack"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block 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action="https://publications.waset.org/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Bias injection attack"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 707</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Bias injection attack</h1> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">707</span> Current Drainage Attack Correction via Adjusting the Attacking Saw Function Asymmetry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Yuri%20Boiko">Yuri Boiko</a>, <a href="https://publications.waset.org/search?q=Iluju%20Kiringa"> Iluju Kiringa</a>, <a href="https://publications.waset.org/search?q=Tet%20Yeap"> Tet Yeap</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Current drainage attack suggested previously is further studied in regular settings of closed-loop controlled Brushless DC (BLDC) motor with Kalman filter in the feedback loop. Modeling and simulation experiments are conducted in a MATLAB environment, implementing the closed-loop control model of BLDC motor operation in position sensorless mode under Kalman filter drive. The current increase in the motor windings is caused by the controller (p-controller in our case) affected by false data injection of substitution of the angular velocity estimates with distorted values. Operation of multiplication to distortion coefficient, values of which are taken from the distortion function synchronized in its periodicity with the rotor鈥檚 position change. A saw function with a triangular tooth shape is studied herewith for the purpose of carrying out the bias injection with current drainage consequences. The specific focus here is on how the asymmetry of the tooth in the saw function affects the flow of current drainage. The purpose is two-fold: (i) to produce and collect the signature of an asymmetric saw in the attack for further pattern recognition process, and (ii) to determine conditions of improving stealthiness of such attack via regulating asymmetry in saw function used. It is found that modification of the symmetry in the saw tooth affects the periodicity of current drainage modulation. Specifically, the modulation frequency of the drained current for a fully asymmetric tooth shape coincides with the saw function modulation frequency itself. Increasing the symmetry parameter for the triangle tooth shape leads to an increase in the modulation frequency for the drained current. Moreover, such frequency reaches the switching frequency of the motor windings for fully symmetric triangular shapes, thus becoming undetectable and improving the stealthiness of the attack. Therefore, the collected signatures of the attack can serve for attack parameter identification via the pattern recognition route. </p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Bias%20injection%20attack" title="Bias injection attack">Bias injection attack</a>, <a href="https://publications.waset.org/search?q=Kalman%20filter" title=" Kalman filter"> Kalman filter</a>, <a href="https://publications.waset.org/search?q=BLDC%20motor" title=" BLDC motor"> BLDC motor</a>, <a href="https://publications.waset.org/search?q=control%20system" title=" control system"> control system</a>, <a href="https://publications.waset.org/search?q=closed%20loop" title=" closed loop"> closed loop</a>, <a href="https://publications.waset.org/search?q=P-controller" title=" P-controller"> P-controller</a>, <a href="https://publications.waset.org/search?q=PID-controller" title=" PID-controller"> PID-controller</a>, <a href="https://publications.waset.org/search?q=current%20drainage" title=" current drainage"> current drainage</a>, <a href="https://publications.waset.org/search?q=saw-function" title=" saw-function"> saw-function</a>, <a href="https://publications.waset.org/search?q=asymmetry." title=" asymmetry."> asymmetry.</a> </p> <a href="https://publications.waset.org/10013400/current-drainage-attack-correction-via-adjusting-the-attacking-saw-function-asymmetry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10013400/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10013400/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10013400/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10013400/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10013400/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10013400/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10013400/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10013400/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10013400/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10013400/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10013400.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">155</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">706</span> Searching for Forensic Evidence in a Compromised Virtual Web Server against SQL Injection Attacks and PHP Web Shell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Gigih%20Supriyatno">Gigih Supriyatno</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>SQL injection is one of the most common types of attacks and has a very critical impact on web servers. In the worst case, an attacker can perform post-exploitation after a successful SQL injection attack. In the case of forensics web servers, web server analysis is closely related to log file analysis. But sometimes large file sizes and different log types make it difficult for investigators to look for traces of attackers on the server. The purpose of this paper is to help investigator take appropriate steps to investigate when the web server gets attacked. We use attack scenarios using SQL injection attacks including PHP backdoor injection as post-exploitation. We perform post-mortem analysis of web server logs based on Hypertext Transfer Protocol (HTTP) POST and HTTP GET method approaches that are characteristic of SQL injection attacks. In addition, we also propose structured analysis method between the web server application log file, database application, and other additional logs that exist on the webserver. This method makes the investigator more structured to analyze the log file so as to produce evidence of attack with acceptable time. There is also the possibility that other attack techniques can be detected with this method. On the other side, it can help web administrators to prepare their systems for the forensic readiness.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Web%20forensic" title="Web forensic">Web forensic</a>, <a href="https://publications.waset.org/search?q=SQL%20injection" title=" SQL injection"> SQL injection</a>, <a href="https://publications.waset.org/search?q=web%20shell" title=" web shell"> web shell</a>, <a href="https://publications.waset.org/search?q=investigation." title=" investigation."> investigation.</a> </p> <a href="https://publications.waset.org/10009875/searching-for-forensic-evidence-in-a-compromised-virtual-web-server-against-sql-injection-attacks-and-php-web-shell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10009875/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10009875/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10009875/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10009875/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10009875/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10009875/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10009875/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10009875/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10009875/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10009875/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10009875.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1257</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">705</span> The Journey of a Malicious HTTP Request</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=M.%20Mansouri">M. Mansouri</a>, <a href="https://publications.waset.org/search?q=P.%20Jaklitsch"> P. Jaklitsch</a>, <a href="https://publications.waset.org/search?q=E.%20Teiniker"> E. Teiniker</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>SQL injection on web applications is a very popular kind of attack. There are mechanisms such as intrusion detection systems in order to detect this attack. These strategies often rely on techniques implemented at high layers of the application but do not consider the low level of system calls. The problem of only considering the high level perspective is that an attacker can circumvent the detection tools using certain techniques such as URL encoding. One technique currently used for detecting low-level attacks on privileged processes is the tracing of system calls. System calls act as a single gate to the Operating System (OS) kernel; they allow catching the critical data at an appropriate level of detail. Our basic assumption is that any type of application, be it a system service, utility program or Web application, “speaks” the language of system calls when having a conversation with the OS kernel. At this level we can see the actual attack while it is happening. We conduct an experiment in order to demonstrate the suitability of system call analysis for detecting SQL injection. We are able to detect the attack. Therefore we conclude that system calls are not only powerful in detecting low-level attacks but that they also enable us to detect highlevel attacks such as SQL injection.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Linux%20system%20calls" title="Linux system calls">Linux system calls</a>, <a href="https://publications.waset.org/search?q=Web%20attack%20detection" title=" Web attack detection"> Web attack detection</a>, <a href="https://publications.waset.org/search?q=Interception." title=" Interception."> Interception.</a> </p> <a href="https://publications.waset.org/9999380/the-journey-of-a-malicious-http-request" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/9999380/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/9999380/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/9999380/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/9999380/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/9999380/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/9999380/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/9999380/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/9999380/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/9999380/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/9999380/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/9999380.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2007</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">704</span> A Pattern Recognition Neural Network Model for Detection and Classification of SQL Injection Attacks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Naghmeh%20Moradpoor%20Sheykhkanloo">Naghmeh Moradpoor Sheykhkanloo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thousands of organisations store important and confidential information related to them, their customers, and their business partners in databases all across the world. The stored data ranges from less sensitive (e.g. first name, last name, date of birth) to more sensitive data (e.g. password, pin code, and credit card information). Losing data, disclosing confidential information or even changing the value of data are the severe damages that Structured Query Language injection (SQLi) attack can cause on a given database. It is a code injection technique where malicious SQL statements are inserted into a given SQL database by simply using a web browser. In this paper, we propose an effective pattern recognition neural network model for detection and classification of SQLi attacks. The proposed model is built from three main elements of: a Uniform Resource Locator (URL) generator in order to generate thousands of malicious and benign URLs, a URL classifier in order to: 1) classify each generated URL to either a benign URL or a malicious URL and 2) classify the malicious URLs into different SQLi attack categories, and a NN model in order to: 1) detect either a given URL is a malicious URL or a benign URL and 2) identify the type of SQLi attack for each malicious URL. The model is first trained and then evaluated by employing thousands of benign and malicious URLs. The results of the experiments are presented in order to demonstrate the effectiveness of the proposed approach. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Neural%20Networks" title="Neural Networks">Neural Networks</a>, <a href="https://publications.waset.org/search?q=pattern%20recognition" title=" pattern recognition"> pattern recognition</a>, <a href="https://publications.waset.org/search?q=SQL%20injection%0D%0Aattacks" title=" SQL injection attacks"> SQL injection attacks</a>, <a href="https://publications.waset.org/search?q=SQL%20injection%20attack%20classification" title=" SQL injection attack classification"> SQL injection attack classification</a>, <a href="https://publications.waset.org/search?q=SQL%20injection%20attack%0D%0Adetection." title=" SQL injection attack detection."> SQL injection attack detection.</a> </p> <a href="https://publications.waset.org/10001574/a-pattern-recognition-neural-network-model-for-detection-and-classification-of-sql-injection-attacks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10001574/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10001574/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10001574/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10001574/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10001574/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10001574/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10001574/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10001574/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10001574/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10001574/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10001574.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2844</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">703</span> Quantifying and Adjusting the Effects of Publication Bias in Continuous Meta-Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=N.R.N.%20Idris">N.R.N. Idris</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>This study uses simulated meta-analysis to assess the effects of publication bias on meta-analysis estimates and to evaluate the efficacy of the trim and fill method in adjusting for these biases. The estimated effect sizes and the standard error were evaluated in terms of the statistical bias and the coverage probability. The results demonstrate that if publication bias is not adjusted it could lead to up to 40% bias in the treatment effect estimates. Utilization of the trim and fill method could reduce the bias in the overall estimate by more than half. The method is optimum in presence of moderate underlying bias but has minimal effects in presence of low and severe publication bias. Additionally, the trim and fill method improves the coverage probability by more than half when subjected to the same level of publication bias as those of the unadjusted data. The method however tends to produce false positive results and will incorrectly adjust the data for publication bias up to 45 % of the time. Nonetheless, the bias introduced into the estimates due to this adjustment is minimal</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Publication%20bias" title="Publication bias">Publication bias</a>, <a href="https://publications.waset.org/search?q=Trim%20and%20Fill%20method" title=" Trim and Fill method"> Trim and Fill method</a>, <a href="https://publications.waset.org/search?q=percentage%0D%0Arelative%20bias" title=" percentage relative bias"> percentage relative bias</a>, <a href="https://publications.waset.org/search?q=coverage%20probability" title=" coverage probability"> coverage probability</a> </p> <a href="https://publications.waset.org/13759/quantifying-and-adjusting-the-effects-of-publication-bias-in-continuous-meta-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/13759/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/13759/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/13759/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/13759/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/13759/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/13759/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/13759/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/13759/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/13759/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/13759/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/13759.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1558</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">702</span> Main Variables Competition in DFB Lasers under Dual Optical Injection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Najm%20M.%20Al-Hosiny">Najm M. Al-Hosiny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We theoretically investigate the effects of frequency detuning and injection power on the nonlinear dynamics of DFB lasers under dual external optical injection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Optical%20injection" title="Optical injection">Optical injection</a>, <a href="https://publications.waset.org/search?q=DFB%20laser" title=" DFB laser"> DFB laser</a>, <a href="https://publications.waset.org/search?q=frequency%20detuning" title=" frequency detuning"> frequency detuning</a>, <a href="https://publications.waset.org/search?q=injection%20power." title=" injection power."> injection power.</a> </p> <a href="https://publications.waset.org/8723/main-variables-competition-in-dfb-lasers-under-dual-optical-injection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/8723/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/8723/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/8723/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/8723/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/8723/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/8723/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/8723/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/8723/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/8723/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/8723/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/8723.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1376</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">701</span> Mechanisms of Internet Security Attacks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=J.%20Dubois">J. Dubois</a>, <a href="https://publications.waset.org/search?q=P.%20Jreije"> P. Jreije</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Internet security attack could endanger the privacy of World Wide Web users and the integrity of their data. The attack can be carried out on today's most secure systems- browsers, including Netscape Navigator and Microsoft Internet Explorer. There are too many types, methods and mechanisms of attack where new attack techniques and exploits are constantly being developed and discovered. In this paper, various types of internet security attack mechanisms are explored and it is pointed out that when different types of attacks are combined together, network security can suffer disastrous consequences. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=DoS" title="DoS">DoS</a>, <a href="https://publications.waset.org/search?q=internet%20attacks" title=" internet attacks"> internet attacks</a>, <a href="https://publications.waset.org/search?q=router%20attack" title=" router attack"> router attack</a>, <a href="https://publications.waset.org/search?q=security" title=" security"> security</a>, <a href="https://publications.waset.org/search?q=trojan" title=" trojan"> trojan</a>, <a href="https://publications.waset.org/search?q=virus" title="virus">virus</a>, <a href="https://publications.waset.org/search?q=worm" title=" worm"> worm</a>, <a href="https://publications.waset.org/search?q=XSS." title=" XSS."> XSS.</a> </p> <a href="https://publications.waset.org/221/mechanisms-of-internet-security-attacks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/221/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/221/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/221/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/221/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/221/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/221/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/221/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/221/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/221/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/221/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/221.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2109</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">700</span> Attacks and Counter Measures in BST Overlay Structure of Peer-To-Peer System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Guruprasad%20Khataniar">Guruprasad Khataniar</a>, <a href="https://publications.waset.org/search?q=Hitesh%20Tahbildar"> Hitesh Tahbildar</a>, <a href="https://publications.waset.org/search?q=Prakriti%20Prava%20Das"> Prakriti Prava Das</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are various overlay structures that provide efficient and scalable solutions for point and range query in a peer-topeer network. Overlay structure based on m-Binary Search Tree (BST) is one such popular technique. It deals with the division of the tree into different key intervals and then assigning the key intervals to a BST. The popularity of the BST makes this overlay structure vulnerable to different kinds of attacks. Here we present four such possible attacks namely index poisoning attack, eclipse attack, pollution attack and syn flooding attack. The functionality of BST is affected by these attacks. We also provide different security techniques that can be applied against these attacks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=BST" title="BST">BST</a>, <a href="https://publications.waset.org/search?q=eclipse%20attack" title=" eclipse attack"> eclipse attack</a>, <a href="https://publications.waset.org/search?q=index%20poisoning%20attack" title=" index poisoning attack"> index poisoning attack</a>, <a href="https://publications.waset.org/search?q=pollution%20attack" title=" pollution attack"> pollution attack</a>, <a href="https://publications.waset.org/search?q=syn%20flooding%20attack." title=" syn flooding attack."> syn flooding attack.</a> </p> <a href="https://publications.waset.org/13541/attacks-and-counter-measures-in-bst-overlay-structure-of-peer-to-peer-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/13541/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/13541/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/13541/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/13541/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/13541/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/13541/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/13541/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/13541/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/13541/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/13541/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/13541.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1621</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">699</span> Experimental and Theoretical Study of Melt Viscosity in Injection Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Chung-Chih%20Lin">Chung-Chih Lin</a>, <a href="https://publications.waset.org/search?q=Wen-Teng%20Wang"> Wen-Teng Wang</a>, <a href="https://publications.waset.org/search?q=Chin-Chiuan%20Kuo"> Chin-Chiuan Kuo</a>, <a href="https://publications.waset.org/search?q=Chieh-Liang%20Wu"> Chieh-Liang Wu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The state of melt viscosity in injection process is significantly influenced by the setting parameters due to that the shear rate of injection process is higher than other processes. How to determine plastic melt viscosity during injection process is important to understand the influence of setting parameters on the melt viscosity. An apparatus named as pressure sensor bushing (PSB) module that is used to evaluate the melt viscosity during injection process is developed in this work. The formulations to coupling melt viscosity with fill time and injection pressure are derived and then the melt viscosity is determined. A test mold is prepared to evaluate the accuracy on viscosity calculations between the PSB module and the conventional approaches. The influence of melt viscosity on the tensile strength of molded part is proposed to study the consistency of injection quality.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Injection%20molding" title="Injection molding">Injection molding</a>, <a href="https://publications.waset.org/search?q=melt%20viscosity" title=" melt viscosity"> melt viscosity</a>, <a href="https://publications.waset.org/search?q=injection%20quality" title=" injection quality"> injection quality</a>, <a href="https://publications.waset.org/search?q=injection%20speed." title=" injection speed. "> injection speed. </a> </p> <a href="https://publications.waset.org/9998914/experimental-and-theoretical-study-of-melt-viscosity-in-injection-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/9998914/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/9998914/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/9998914/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/9998914/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/9998914/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/9998914/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/9998914/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/9998914/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/9998914/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/9998914/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/9998914.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">4399</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">698</span> Experimental Investigation on the Effect of CO2 and WAG Injection on Permeability Reduction Induced by Asphaltene Precipitation in Light Oil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Ali%20F.%20Alta%27ee">Ali F. Alta'ee</a>, <a href="https://publications.waset.org/search?q=Ong%20S.%20Hun"> Ong S. Hun</a>, <a href="https://publications.waset.org/search?q=Sima%20Sh.%20Alian"> Sima Sh. Alian</a>, <a href="https://publications.waset.org/search?q=Ismail%20M.%20Saaid"> Ismail M. Saaid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Permeability reduction induced by asphaltene precipitation during gas injection is one of the serious problems in the oil industry. This problem can lead to formation damage and decrease the oil production rate. In this work, Malaysian light oil sample has been used to investigate the effect CO2 injection and Water Alternating Gas (WAG) injection on permeability reduction. In this work, dynamic core flooding experiments were conducted to study the effect of CO2 and WAG injection on the amount of asphaltene precipitated. Core properties after displacement were inspected for any permeability reduction to study the effect of asphaltene precipitation on rock properties. The results showed that WAG injection gave less asphaltene precipitation and formation damage compared to CO2 injection. The study suggested that WAG injection can be one of the important factors of managing asphaltene precipitation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Asphaltene%20Precipitation" title="Asphaltene Precipitation">Asphaltene Precipitation</a>, <a href="https://publications.waset.org/search?q=Permeability%20Reduction" title=" Permeability Reduction"> Permeability Reduction</a>, <a href="https://publications.waset.org/search?q=CO2%20Injection" title=" CO2 Injection"> CO2 Injection</a>, <a href="https://publications.waset.org/search?q=WAG%20Injection." title=" WAG Injection."> WAG Injection.</a> </p> <a href="https://publications.waset.org/12211/experimental-investigation-on-the-effect-of-co2-and-wag-injection-on-permeability-reduction-induced-by-asphaltene-precipitation-in-light-oil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/12211/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/12211/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/12211/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/12211/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/12211/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/12211/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/12211/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/12211/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/12211/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/12211/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/12211.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">3469</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">697</span> Artificial Neural Network based Web Application Firewall for SQL Injection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Asaad%20Moosa">Asaad Moosa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>In recent years with the rapid development of Internet and the Web, more and more web applications have been deployed in many fields and organizations such as finance, military, and government. Together with that, hackers have found more subtle ways to attack web applications. According to international statistics, SQL Injection is one of the most popular vulnerabilities of web applications. The consequences of this type of attacks are quite dangerous, such as sensitive information could be stolen or authentication systems might be by-passed. To mitigate the situation, several techniques have been adopted. In this research, a security solution is proposed using Artificial Neural Network to protect web applications against this type of attacks. The solution has been experimented on sample datasets and has given promising result. The solution has also been developed in a prototypic web application firewall called ANNbWAF.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Artificial%20Neural%20Networks%20ANN" title="Artificial Neural Networks ANN">Artificial Neural Networks ANN</a>, <a href="https://publications.waset.org/search?q=SQL%20Injection" title=" SQL Injection"> SQL Injection</a>, <a href="https://publications.waset.org/search?q=Web%20Application%20Firewall%20WAF" title="Web Application Firewall WAF">Web Application Firewall WAF</a>, <a href="https://publications.waset.org/search?q=Web%20Application%20Scanner%20WAS." title=" Web Application Scanner WAS."> Web Application Scanner WAS.</a> </p> <a href="https://publications.waset.org/1001/artificial-neural-network-based-web-application-firewall-for-sql-injection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/1001/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/1001/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/1001/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/1001/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/1001/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/1001/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/1001/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/1001/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/1001/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/1001/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/1001.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">5669</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">696</span> Surface Pressure Distribution of a Flapped-Airfoil for Different Momentum Injection at the Leading Edge</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Mohammad%20Mashud">Mohammad Mashud</a>, <a href="https://publications.waset.org/search?q=S.%20M.%20Nahid%20Hasan"> S. M. Nahid Hasan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The aim of the research work is to modify the NACA 4215 airfoil with flap and rotary cylinder at the leading edge of the airfoil and experimentally study the static pressure distribution over the airfoil completed with flap and leading-edge vortex generator. In this research, NACA 4215 wing model has been constructed by generating the profile geometry using the standard equations and design software such as AutoCAD and SolidWorks. To perform the experiment, three wooden models are prepared and tested in subsonic wind tunnel. The experiments were carried out in various angles of attack. Flap angle and momentum injection rate are changed to observe the characteristics of pressure distribution. In this research, a new concept of flow separation control mechanism has been introduced to improve the aerodynamic characteristics of airfoil. Control of flow separation over airfoil which experiences a vortex generator (rotating cylinder) at the leading edge of airfoil is experimentally simulated under the effects of momentum injection. The experimental results show that the flow separation control is possible by the proposed mechanism, and benefits can be achieved by momentum injection technique. The wing performance is significantly improved due to control of flow separation by momentum injection method.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Airfoil" title="Airfoil">Airfoil</a>, <a href="https://publications.waset.org/search?q=momentum%20injection" title=" momentum injection"> momentum injection</a>, <a href="https://publications.waset.org/search?q=flap%20and%20pressure%20distribution." title=" flap and pressure distribution."> flap and pressure distribution.</a> </p> <a href="https://publications.waset.org/10010161/surface-pressure-distribution-of-a-flapped-airfoil-for-different-momentum-injection-at-the-leading-edge" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10010161/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10010161/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10010161/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10010161/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10010161/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10010161/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10010161/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10010161/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10010161/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10010161/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10010161.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">629</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">695</span> A Reasoning Method of Cyber-Attack Attribution Based on Threat Intelligence</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Li%20Qiang">Li Qiang</a>, <a href="https://publications.waset.org/search?q=Yang%20Ze-Ming"> Yang Ze-Ming</a>, <a href="https://publications.waset.org/search?q=Liu%20Bao-Xu"> Liu Bao-Xu</a>, <a href="https://publications.waset.org/search?q=Jiang%20Zheng-Wei"> Jiang Zheng-Wei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>With the increasing complexity of cyberspace security, the cyber-attack attribution has become an important challenge of the security protection systems. The difficult points of cyber-attack attribution were forced on the problems of huge data handling and key data missing. According to this situation, this paper presented a reasoning method of cyber-attack attribution based on threat intelligence. The method utilizes the intrusion kill chain model and Bayesian network to build attack chain and evidence chain of cyber-attack on threat intelligence platform through data calculation, analysis and reasoning. Then, we used a number of cyber-attack events which we have observed and analyzed to test the reasoning method and demo system, the result of testing indicates that the reasoning method can provide certain help in cyber-attack attribution.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Reasoning" title="Reasoning">Reasoning</a>, <a href="https://publications.waset.org/search?q=Bayesian%20networks" title=" Bayesian networks"> Bayesian networks</a>, <a href="https://publications.waset.org/search?q=cyber-attack%20attribution" title=" cyber-attack attribution"> cyber-attack attribution</a>, <a href="https://publications.waset.org/search?q=kill%20chain" title=" kill chain"> kill chain</a>, <a href="https://publications.waset.org/search?q=threat%20intelligence." title=" threat intelligence."> threat intelligence.</a> </p> <a href="https://publications.waset.org/10004527/a-reasoning-method-of-cyber-attack-attribution-based-on-threat-intelligence" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10004527/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10004527/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10004527/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10004527/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10004527/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10004527/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10004527/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10004527/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10004527/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10004527/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10004527.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2673</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">694</span> A Distinguish Attack on COSvd Cipher</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Mohammad%20Ali%20Orumiehchi%20ha">Mohammad Ali Orumiehchi ha</a>, <a href="https://publications.waset.org/search?q=R.%20Mirghadri"> R. Mirghadri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The COSvd Ciphers has been proposed by Filiol and others (2004). It is a strengthened version of COS stream cipher family denoted COSvd that has been adopted for at least one commercial standard. We propose a distinguish attack on this version, and prove that, it is distinguishable from a random stream. In the COSvd Cipher used one S-Box (10×8) on the final part of cipher. We focus on S-Box and use weakness this S-Box for distinguish attack. In addition, found a leak on HNLL that the sub s-boxes don-t select uniformly. We use this property for an Improve distinguish attack.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Stream%20cipher" title="Stream cipher">Stream cipher</a>, <a href="https://publications.waset.org/search?q=COSvd%20cipher" title=" COSvd cipher"> COSvd cipher</a>, <a href="https://publications.waset.org/search?q=distinguish%20attack" title=" distinguish attack"> distinguish attack</a>, <a href="https://publications.waset.org/search?q=nonlinear%20feedback%20shift%20registers" title=" nonlinear feedback shift registers"> nonlinear feedback shift registers</a>, <a href="https://publications.waset.org/search?q=chaotic%20layer." title=" chaotic layer."> chaotic layer.</a> </p> <a href="https://publications.waset.org/11364/a-distinguish-attack-on-cosvd-cipher" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/11364/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/11364/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/11364/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/11364/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/11364/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/11364/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/11364/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/11364/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/11364/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/11364/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/11364.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1157</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">693</span> Selective Forwarding Attack and Its Detection Algorithms: A Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Sushil%20Sarwa">Sushil Sarwa</a>, <a href="https://publications.waset.org/search?q=Rajeev%20Kumar"> Rajeev Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The wireless mesh networks (WMNs) are emerging technology in wireless networking as they can serve large scale high speed internet access. Due to its wireless multi-hop feature, wireless mesh network is prone to suffer from many attacks, such as denial of service attack (DoS). We consider a special case of DoS attack which is selective forwarding attack (a.k.a. gray hole attack). In such attack, a misbehaving mesh router selectively drops the packets it receives rom its predecessor mesh router. It is very hard to detect that packet loss is due to medium access collision, bad channel quality or because of selective forwarding attack. In this paper, we present a review of detection algorithms of selective forwarding attack and discuss their advantage & disadvantage. Finally we conclude this paper with open research issues and challenges.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=CAD%20algorithm" title="CAD algorithm">CAD algorithm</a>, <a href="https://publications.waset.org/search?q=CHEMAS" title=" CHEMAS"> CHEMAS</a>, <a href="https://publications.waset.org/search?q=selective%20forwarding%0D%0Aattack" title=" selective forwarding attack"> selective forwarding attack</a>, <a href="https://publications.waset.org/search?q=watchdog%20%26%20pathrater" title=" watchdog & pathrater"> watchdog & pathrater</a>, <a href="https://publications.waset.org/search?q=wireless%20mesh%20network." title=" wireless mesh network."> wireless mesh network.</a> </p> <a href="https://publications.waset.org/16344/selective-forwarding-attack-and-its-detection-algorithms-a-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/16344/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/16344/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/16344/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/16344/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/16344/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/16344/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/16344/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/16344/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/16344/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/16344/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/16344.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2796</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">692</span> Improved Small-Signal Characteristics of Infrared 850 nm Top-Emitting Vertical-Cavity Lasers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Ahmad%20Al-Omari">Ahmad Al-Omari</a>, <a href="https://publications.waset.org/search?q=Osama%20Khreis"> Osama Khreis</a>, <a href="https://publications.waset.org/search?q=Ahmad%20M.%20K.%20Dagamseh"> Ahmad M. K. Dagamseh</a>, <a href="https://publications.waset.org/search?q=Abdullah%20Ababneh"> Abdullah Ababneh</a>, <a href="https://publications.waset.org/search?q=Kevin%20Lear"> Kevin Lear</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High-speed infrared vertical-cavity surface-emitting laser diodes (VCSELs) with Cu-plated heat sinks were fabricated and tested. VCSELs with 10 mm aperture diameter and 4 mm of electroplated copper demonstrated a -3dB modulation bandwidth (<em>f</em><sub>-3dB</sub>) of 14 GHz and a resonance frequency (<em>f</em><sub>R</sub>) of 9.5 GHz at a bias current density (<em>J<sub>bias</sub></em>) of only 4.3 kA/cm<sup>2</sup>, which corresponds to an improved <em>f</em><sub>-3dB</sub><sup>2</sup>/<em>J<sub>bias</sub></em> ratio of 44 GHz<sup>2</sup>/kA/cm<sup>2</sup>. At higher and lower bias current densities, the <em>f</em><sub>-3dB</sub><sup>2</sup>/<em> J<sub>bias</sub></em> ratio decreased to about 30 GHz<sup>2</sup>/kA/cm<sup>2</sup> and 18 GHz<sup>2</sup>/kA/cm<sup>2</sup>, respectively. Examination of the analogue modulation response demonstrated that the presented VCSELs displayed a steady <em>f</em><sub>-3dB</sub>/<em> f</em><sub>R</sub> ratio of 1.41±10% over the whole range of the bias current (1.3<em>I</em><sub>th</sub> to 6.2<em>I</em><sub>th</sub>). The devices also demonstrated a maximum modulation bandwidth (<em>f</em><sub>-3dB max</sub>) of more than 16 GHz at a bias current less than the industrial bias current standard for reliability by 25%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Current%20density" title="Current density">Current density</a>, <a href="https://publications.waset.org/search?q=High-speed%20VCSELs" title=" High-speed VCSELs"> High-speed VCSELs</a>, <a href="https://publications.waset.org/search?q=Modulation%20bandwidth" title=" Modulation bandwidth"> Modulation bandwidth</a>, <a href="https://publications.waset.org/search?q=Small-Signal%20Characteristics" title=" Small-Signal Characteristics"> Small-Signal Characteristics</a>, <a href="https://publications.waset.org/search?q=Thermal%20impedance" title=" Thermal impedance"> Thermal impedance</a>, <a href="https://publications.waset.org/search?q=Vertical-cavity%20surface-emitting%20lasers." title=" Vertical-cavity surface-emitting lasers."> Vertical-cavity surface-emitting lasers.</a> </p> <a href="https://publications.waset.org/10008357/improved-small-signal-characteristics-of-infrared-850-nm-top-emitting-vertical-cavity-lasers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10008357/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10008357/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10008357/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10008357/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10008357/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10008357/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10008357/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10008357/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10008357/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10008357/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10008357.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1291</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">691</span> How Efficiency of Password Attack Based on a Keyboard</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Hsien-cheng%20Chou">Hsien-cheng Chou</a>, <a href="https://publications.waset.org/search?q=Fei-pei%20Lai"> Fei-pei Lai</a>, <a href="https://publications.waset.org/search?q=Hung-chang%20Lee"> Hung-chang Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> At present, dictionary attack has been the basic tool for recovering key passwords. In order to avoid dictionary attack, users purposely choose another character strings as passwords. According to statistics, about 14% of users choose keys on a keyboard (Kkey, for short) as passwords. This paper develops a framework system to attack the password chosen from Kkeys and analyzes its efficiency. Within this system, we build up keyboard rules using the adjacent and parallel relationship among Kkeys and then use these Kkey rules to generate password databases by depth-first search method. According to the experiment results, we find the key space of databases derived from these Kkey rules that could be far smaller than the password databases generated within brute-force attack, thus effectively narrowing down the scope of attack research. Taking one general Kkey rule, the combinations in all printable characters (94 types) with Kkey adjacent and parallel relationship, as an example, the derived key space is about 240 smaller than those in brute-force attack. In addition, we demonstrate the method's practicality and value by successfully cracking the access password to UNIX and PC using the password databases created <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Brute-force%20attack" title="Brute-force attack">Brute-force attack</a>, <a href="https://publications.waset.org/search?q=dictionary%20attack" title=" dictionary attack"> dictionary attack</a>, <a href="https://publications.waset.org/search?q=depth-firstsearch" title=" depth-firstsearch"> depth-firstsearch</a>, <a href="https://publications.waset.org/search?q=password%20attack." title=" password attack."> password attack.</a> </p> <a href="https://publications.waset.org/15405/how-efficiency-of-password-attack-based-on-a-keyboard" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/15405/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/15405/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/15405/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/15405/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/15405/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/15405/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/15405/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/15405/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/15405/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/15405/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/15405.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">3475</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">690</span> An Atomic-Domains-Based Approach for Attack Graph Generation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Fangfang%20Chen">Fangfang Chen</a>, <a href="https://publications.waset.org/search?q=Chunlu%20Wang"> Chunlu Wang</a>, <a href="https://publications.waset.org/search?q=Zhihong%20Tian"> Zhihong Tian</a>, <a href="https://publications.waset.org/search?q=Shuyuan%20Jin"> Shuyuan Jin</a>, <a href="https://publications.waset.org/search?q=Tianle%20Zhang"> Tianle Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Attack graph is an integral part of modeling the overview of network security. System administrators use attack graphs to determine how vulnerable their systems are and to determine what security measures to deploy to defend their systems. Previous methods on AGG(attack graphs generation) are aiming at the whole network, which makes the process of AGG complex and non-scalable. In this paper, we propose a new approach which is simple and scalable to AGG by decomposing the whole network into atomic domains. Each atomic domain represents a host with a specific privilege. Then the process for AGG is achieved by communications among all the atomic domains. Our approach simplifies the process of design for the whole network, and can gives the attack graphs including each attack path for each host, and when the network changes we just carry on the operations of corresponding atomic domains which makes the process of AGG scalable. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=atomic%20domain" title="atomic domain">atomic domain</a>, <a href="https://publications.waset.org/search?q=vulnerability" title="vulnerability">vulnerability</a>, <a href="https://publications.waset.org/search?q=attack%20graphs" title=" attack graphs"> attack graphs</a>, <a href="https://publications.waset.org/search?q=generation" title=" generation"> generation</a>, <a href="https://publications.waset.org/search?q=computer%20security" title="computer security">computer security</a> </p> <a href="https://publications.waset.org/15648/an-atomic-domains-based-approach-for-attack-graph-generation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/15648/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/15648/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/15648/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/15648/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/15648/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/15648/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/15648/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/15648/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/15648/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/15648/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/15648.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1655</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">689</span> Modeling of Cross Flow Classifier with Water Injection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=E.%20Pikushchak">E. Pikushchak</a>, <a href="https://publications.waset.org/search?q=J.%20Dueck"> J. Dueck</a>, <a href="https://publications.waset.org/search?q=L.%20Minkov"> L. Minkov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In hydrocyclones, the particle separation efficiency is limited by the suspended fine particles, which are discharged with the coarse product in the underflow. It is well known that injecting water in the conical part of the cyclone reduces the fine particle fraction in the underflow. This paper presents a mathematical model that simulates the water injection in the conical component. The model accounts for the fluid flow and the particle motion. Particle interaction, due to hindered settling caused by increased density and viscosity of the suspension, and fine particle entrainment by settling coarse particles are included in the model. Water injection in the conical part of the hydrocyclone is performed to reduce fine particle discharge in the underflow. The model demonstrates the impact of the injection rate, injection velocity, and injection location on the shape of the partition curve. The simulations are compared with experimental data of a 50-mm cyclone. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Classification" title="Classification">Classification</a>, <a href="https://publications.waset.org/search?q=fine%20particle%20processing" title=" fine particle processing"> fine particle processing</a>, <a href="https://publications.waset.org/search?q=hydrocyclone" title=" hydrocyclone"> hydrocyclone</a>, <a href="https://publications.waset.org/search?q=water%20injection." title=" water injection."> water injection.</a> </p> <a href="https://publications.waset.org/7805/modeling-of-cross-flow-classifier-with-water-injection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/7805/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/7805/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/7805/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/7805/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/7805/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/7805/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/7805/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/7805/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/7805/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/7805/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/7805.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1954</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">688</span> Graphical Password Security Evaluation by Fuzzy AHP</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Arash%20Habibi%20Lashkari">Arash Habibi Lashkari</a>, <a href="https://publications.waset.org/search?q=Azizah%20Abdul%20Manaf"> Azizah Abdul Manaf</a>, <a href="https://publications.waset.org/search?q=Maslin%20Masrom"> Maslin Masrom</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In today's day and age, one of the important topics in information security is authentication. There are several alternatives to text-based authentication of which includes Graphical Password (GP) or Graphical User Authentication (GUA). These methods stems from the fact that humans recognized and remembers images better than alphanumerical text characters. This paper will focus on the security aspect of GP algorithms and what most researchers have been working on trying to define these security features and attributes. The goal of this study is to develop a fuzzy decision model that allows automatic selection of available GP algorithms by taking into considerations the subjective judgments of the decision makers who are more than 50 postgraduate students of computer science. The approach that is being proposed is based on the Fuzzy Analytic Hierarchy Process (FAHP) which determines the criteria weight as a linear formula. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Graphical%20Password" title="Graphical Password">Graphical Password</a>, <a href="https://publications.waset.org/search?q=Authentication%20Security" title=" Authentication Security"> Authentication Security</a>, <a href="https://publications.waset.org/search?q=Attack%0APatterns" title=" Attack Patterns"> Attack Patterns</a>, <a href="https://publications.waset.org/search?q=Brute%20force%20attack" title=" Brute force attack"> Brute force attack</a>, <a href="https://publications.waset.org/search?q=Dictionary%20attack" title=" Dictionary attack"> Dictionary attack</a>, <a href="https://publications.waset.org/search?q=Guessing%20Attack" title=" Guessing Attack"> Guessing Attack</a>, <a href="https://publications.waset.org/search?q=Spyware%20attack" title=" Spyware attack"> Spyware attack</a>, <a href="https://publications.waset.org/search?q=Shoulder%20surfing%20attack" title=" Shoulder surfing attack"> Shoulder surfing attack</a>, <a href="https://publications.waset.org/search?q=Social%20engineering%20Attack" title=" Social engineering Attack"> Social engineering Attack</a>, <a href="https://publications.waset.org/search?q=Password%20Entropy" title=" Password Entropy"> Password Entropy</a>, <a href="https://publications.waset.org/search?q=Password%20Space." title=" Password Space."> Password Space.</a> </p> <a href="https://publications.waset.org/2662/graphical-password-security-evaluation-by-fuzzy-ahp" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/2662/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/2662/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/2662/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/2662/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/2662/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/2662/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/2662/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/2662/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/2662/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/2662/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/2662.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1936</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">687</span> Effect of Amplitude and Mean Angle of Attack on Wake of an Oscillating Airfoil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Sadeghi%20H.">Sadeghi H.</a>, <a href="https://publications.waset.org/search?q=Mani%20M."> Mani M.</a>, <a href="https://publications.waset.org/search?q=Ardakani%20M.%20A."> Ardakani M. A.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The unsteady wake of an EPPLER 361 airfoil in pitching motion has been investigated in a subsonic wind tunnel by hot-wire anemometry. The airfoil was given the pitching motion about the one-quarter chord axis at reduced frequency of 0182. Streamwise mean velocity profiles (wake profiles) were investigated at several vertically aligned points behind the airfoil at one-quarter chord downstream distance from trailing edge. Oscillation amplitude and mean angle of attack were varied to determine the effects on wake profiles. When the maximum dynamic angle of attack was below the static stall angle of attack, weak effects on wake were found by increasing oscillation amplitude and mean angle of attack. But, for higher angles of attack strong unsteady effects were appeared on the wake. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Unsteady%20wake" title="Unsteady wake">Unsteady wake</a>, <a href="https://publications.waset.org/search?q=amplitude" title=" amplitude"> amplitude</a>, <a href="https://publications.waset.org/search?q=mean%20angle" title=" mean angle"> mean angle</a>, <a href="https://publications.waset.org/search?q=EPPLER%0A361%20airfoil." title=" EPPLER 361 airfoil."> EPPLER 361 airfoil.</a> </p> <a href="https://publications.waset.org/6798/effect-of-amplitude-and-mean-angle-of-attack-on-wake-of-an-oscillating-airfoil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/6798/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/6798/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/6798/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/6798/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/6798/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/6798/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/6798/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/6798/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/6798/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/6798/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/6798.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2678</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">686</span> An Attack on the Lucas Based El-Gamal Cryptosystem in the Elliptic Curve Group Over Finite Field Using Greater Common Divisor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Lee%20Feng%20Koo">Lee Feng Koo</a>, <a href="https://publications.waset.org/search?q=Tze%20Jin%20Wong"> Tze Jin Wong</a>, <a href="https://publications.waset.org/search?q=Pang%20Hung%20Yiu"> Pang Hung Yiu</a>, <a href="https://publications.waset.org/search?q=Nik%20Mohd%20Asri%20Nik%20Long"> Nik Mohd Asri Nik Long</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Greater common divisor (GCD) attack is an attack that relies on the polynomial structure of the cryptosystem. This attack required two plaintexts differ from a fixed number and encrypted under same modulus. This paper reports a security reaction of Lucas Based El-Gamal Cryptosystem in the Elliptic Curve group over finite field under GCD attack. Lucas Based El-Gamal Cryptosystem in the Elliptic Curve group over finite field was exposed mathematically to the GCD attack using GCD and Dickson polynomial. The result shows that the cryptanalyst is able to get the plaintext without decryption by using GCD attack. Thus, the study concluded that it is highly perilous when two plaintexts have a slight difference from a fixed number in the same Elliptic curve group over finite field.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Decryption" title="Decryption">Decryption</a>, <a href="https://publications.waset.org/search?q=encryption" title=" encryption"> encryption</a>, <a href="https://publications.waset.org/search?q=elliptic%20curve" title=" elliptic curve"> elliptic curve</a>, <a href="https://publications.waset.org/search?q=greater%20common%20divisor." title=" greater common divisor. "> greater common divisor. </a> </p> <a href="https://publications.waset.org/10010260/an-attack-on-the-lucas-based-el-gamal-cryptosystem-in-the-elliptic-curve-group-over-finite-field-using-greater-common-divisor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10010260/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10010260/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10010260/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10010260/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10010260/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10010260/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10010260/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10010260/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10010260/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10010260/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10010260.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">705</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">685</span> Cryptographic Attack on Lucas Based Cryptosystems Using Chinese Remainder Theorem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Tze%20Jin%20Wong">Tze Jin Wong</a>, <a href="https://publications.waset.org/search?q=Lee%20Feng%20Koo"> Lee Feng Koo</a>, <a href="https://publications.waset.org/search?q=Pang%20Hung%20Yiu"> Pang Hung Yiu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lenstra’s attack uses Chinese remainder theorem as a tool and requires a faulty signature to be successful. This paper reports on the security responses of fourth and sixth order Lucas based (LUC<sub>4,6</sub>) cryptosystem under the Lenstra’s attack as compared to the other two Lucas based cryptosystems such as LUC and LUC<sub>3</sub> cryptosystems. All the Lucas based cryptosystems were exposed mathematically to the Lenstra’s attack using Chinese Remainder Theorem and Dickson polynomial. Result shows that the possibility for successful Lenstra’s attack is less against LUC<sub>4,6</sub> cryptosystem than LUC<sub>3</sub> and LUC cryptosystems. Current study concludes that LUC<sub>4,6</sub> cryptosystem is more secure than LUC and LUC<sub>3</sub> cryptosystems in sustaining against Lenstra’s attack. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Lucas%20sequence" title="Lucas sequence">Lucas sequence</a>, <a href="https://publications.waset.org/search?q=Dickson%20Polynomial" title=" Dickson Polynomial"> Dickson Polynomial</a>, <a href="https://publications.waset.org/search?q=faulty%20signature" title=" faulty signature"> faulty signature</a>, <a href="https://publications.waset.org/search?q=corresponding%20signature" title=" corresponding signature"> corresponding signature</a>, <a href="https://publications.waset.org/search?q=congruence." title=" congruence. "> congruence. </a> </p> <a href="https://publications.waset.org/10010261/cryptographic-attack-on-lucas-based-cryptosystems-using-chinese-remainder-theorem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10010261/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10010261/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10010261/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10010261/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10010261/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10010261/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10010261/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10010261/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10010261/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10010261/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10010261.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">732</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">684</span> Thermodynamic Performance Assessment of Steam-Injection Gas-Turbine Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Kyoung%20Hoon%20Kim">Kyoung Hoon Kim</a>, <a href="https://publications.waset.org/search?q=Giman%20Kim"> Giman Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The cycles of the steam-injection gas-turbine systems are studied. The analyses of the parametric effects and the optimal operating conditions for the steam-injection gas-turbine (STIG) system and the regenerative steam-injection gas-turbine (RSTIG) system are investigated to ensure the maximum performance. Using the analytic model, the performance parameters of the system such as thermal efficiency, fuel consumption and specific power, and also the optimal operating conditions are evaluated in terms of pressure ratio, steam injection ratio, ambient temperature and turbine inlet temperature (TIT). It is shown that the computational results are presented to have a notable enhancement of thermal efficiency and specific power.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=gas%20turbine" title="gas turbine">gas turbine</a>, <a href="https://publications.waset.org/search?q=RSTIG" title=" RSTIG"> RSTIG</a>, <a href="https://publications.waset.org/search?q=steam%20injection" title=" steam injection"> steam injection</a>, <a href="https://publications.waset.org/search?q=STIG" title=" STIG"> STIG</a>, <a href="https://publications.waset.org/search?q=thermal%20efficiency." title=" thermal efficiency."> thermal efficiency.</a> </p> <a href="https://publications.waset.org/13296/thermodynamic-performance-assessment-of-steam-injection-gas-turbine-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/13296/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/13296/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/13296/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/13296/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/13296/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/13296/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/13296/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/13296/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/13296/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/13296/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/13296.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2544</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">683</span> A Novel Approach to Avoid Billing Attack on VOIP System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Narendra%20M.%20Shekokar">Narendra M. Shekokar</a>, <a href="https://publications.waset.org/search?q=Satish%20R.%20Devane"> Satish R. Devane</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>In a recent year usage of VoIP subscription has increased tremendously as compare to Public Switching Telephone System(PSTN). A VoIP subscriber would like to know the exact tariffs of the calls made using VoIP. As the usage increases, the rate of fraud is also increases, causing users complain about excess billing. This in turn hampers the growth of VoIP .This paper describe the common frauds and attack on VoIP based system and make an attempt to solve the billing attack by creating secured channel between caller and callee.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=VoIP" title="VoIP">VoIP</a>, <a href="https://publications.waset.org/search?q=Billing-fraud" title=" Billing-fraud"> Billing-fraud</a>, <a href="https://publications.waset.org/search?q=SSL%2FTLS" title=" SSL/TLS"> SSL/TLS</a>, <a href="https://publications.waset.org/search?q=MITM" title=" MITM"> MITM</a>, <a href="https://publications.waset.org/search?q=Replay-attack." title=" Replay-attack."> Replay-attack.</a> </p> <a href="https://publications.waset.org/4447/a-novel-approach-to-avoid-billing-attack-on-voip-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/4447/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/4447/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/4447/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/4447/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/4447/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/4447/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/4447/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/4447/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/4447/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/4447/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/4447.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1651</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">682</span> Analysis of Detecting Wormhole Attack in Wireless Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Khin%20Sandar%20Win">Khin Sandar Win</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In multi hop wireless systems, such as ad hoc and sensor networks, mobile ad hoc network applications are deployed, security emerges as a central requirement. A particularly devastating attack is known as the wormhole attack, where two or more malicious colluding nodes create a higher level virtual tunnel in the network, which is employed to transport packets between the tunnel end points. These tunnels emulate shorter links in the network. In which adversary records transmitted packets at one location in the network, tunnels them to another location, and retransmits them into the network. The wormhole attack is possible even if the attacker has not compromised any hosts and even if all communication provides authenticity and confidentiality. In this paper, we analyze wormhole attack nature in ad hoc and sensor networks and existing methods of the defending mechanism to detect wormhole attacks without require any specialized hardware. This analysis able to provide in establishing a method to reduce the rate of refresh time and the response time to become more faster. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Ad%20hoc%20network" title="Ad hoc network">Ad hoc network</a>, <a href="https://publications.waset.org/search?q=Sensor%20network" title=" Sensor network"> Sensor network</a>, <a href="https://publications.waset.org/search?q=Wormhole%20attack" title=" Wormhole attack"> Wormhole attack</a>, <a href="https://publications.waset.org/search?q=defending%20mechanism." title="defending mechanism.">defending mechanism.</a> </p> <a href="https://publications.waset.org/12047/analysis-of-detecting-wormhole-attack-in-wireless-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/12047/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/12047/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/12047/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/12047/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/12047/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/12047/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/12047/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/12047/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/12047/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/12047/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/12047.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">2297</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">681</span> Gas Lift Optimization to Improve Well Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Mohamed%20A.%20G.%20H.%20Abdalsadig">Mohamed A. G. H. Abdalsadig</a>, <a href="https://publications.waset.org/search?q=Amir%20Nourian"> Amir Nourian</a>, <a href="https://publications.waset.org/search?q=G.%20G.%20Nasr"> G. G. Nasr</a>, <a href="https://publications.waset.org/search?q=Meisam%20Babaie"> Meisam Babaie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Gas lift optimization is becoming more important now a day in petroleum industry. A proper lift optimization can reduce the operating cost, increase the net present value (NPV) and maximize the recovery from the asset. A widely accepted definition of gas lift optimization is to obtain the maximum output under specified operating conditions. In addition, gas lift, a costly and indispensable means to recover oil from high depth reservoir entails solving the gas lift optimization problems. Gas lift optimization is a continuous process; there are two levels of production optimization. The total field optimization involves optimizing the surface facilities and the injection rate that can be achieved by standard tools softwares. Well level optimization can be achieved by optimizing the well parameters such as point of injection, injection rate, and injection pressure. All these aspects have been investigated and presented in this study by using experimental data and PROSPER simulation program. The results show that the well head pressure has a large influence on the gas lift performance and also proved that smart gas lift valve can be used to improve gas lift performance by controlling gas injection from down hole. Obtaining the optimum gas injection rate is important because excessive gas injection reduces production rate and consequently increases the operation cost.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Optimization" title="Optimization">Optimization</a>, <a href="https://publications.waset.org/search?q=production%20rate" title=" production rate"> production rate</a>, <a href="https://publications.waset.org/search?q=reservoir%20pressure%20effect" title=" reservoir pressure effect"> reservoir pressure effect</a>, <a href="https://publications.waset.org/search?q=gas%20injection%20rate%20effect" title=" gas injection rate effect"> gas injection rate effect</a>, <a href="https://publications.waset.org/search?q=gas%20injection%20pressure." title=" gas injection pressure."> gas injection pressure.</a> </p> <a href="https://publications.waset.org/10003882/gas-lift-optimization-to-improve-well-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10003882/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10003882/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10003882/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10003882/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10003882/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10003882/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10003882/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10003882/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10003882/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10003882/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10003882.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">6800</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">680</span> Investigation of the Effectiveness of Siloxane Hydrophobic Injection for Renovation of Damp Brick Masonry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Z.%20Pavl%C3%ADk">Z. Pavl铆k</a>, <a href="https://publications.waset.org/search?q=M.%20Keppert"> M. Keppert</a>, <a href="https://publications.waset.org/search?q=M.%20Pavl%C3%ADkov%C3%A1"> M. Pavl铆kov谩</a>, <a href="https://publications.waset.org/search?q=R.%20%C4%8Cern%C3%BD"> R. 膶ern媒</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Experimental investigation of the effect of hydrophobic injection on siloxane basis on the properties of oldfashioned type of ceramic brick is presented in the paper. At the experimental testing, the matrix density, total open porosity, pore size distribution, sorptivity, water absorption coefficient, sorption and desorption isotherms are measured for the original, as well as the hydrophobic-injection treated brick. On the basis of measured data, the functionality of the hydrophobic injection for the moisture ingress prevention into the studied ceramic brick is assessed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Brick%20masonry" title="Brick masonry">Brick masonry</a>, <a href="https://publications.waset.org/search?q=siloxane%20hydrophobic%20injection" title=" siloxane hydrophobic injection"> siloxane hydrophobic injection</a>, <a href="https://publications.waset.org/search?q=moisture%20ingress" title=" moisture ingress"> moisture ingress</a>, <a href="https://publications.waset.org/search?q=functionality%20testing." title=" functionality testing."> functionality testing.</a> </p> <a href="https://publications.waset.org/1942/investigation-of-the-effectiveness-of-siloxane-hydrophobic-injection-for-renovation-of-damp-brick-masonry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/1942/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/1942/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/1942/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/1942/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/1942/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/1942/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/1942/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/1942/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/1942/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/1942/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/1942.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1825</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">679</span> Security Weaknesses of Dynamic ID-based Remote User Authentication Protocol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Hyoungseob%20Lee">Hyoungseob Lee</a>, <a href="https://publications.waset.org/search?q=Donghyun%20Choi"> Donghyun Choi</a>, <a href="https://publications.waset.org/search?q=Yunho%20Lee"> Yunho Lee</a>, <a href="https://publications.waset.org/search?q=Dongho%20Won"> Dongho Won</a>, <a href="https://publications.waset.org/search?q=Seungjoo%20Kim"> Seungjoo Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, with the appearance of smart cards, many user authentication protocols using smart card have been proposed to mitigate the vulnerabilities in user authentication process. In 2004, Das et al. proposed a ID-based user authentication protocol that is secure against ID-theft and replay attack using smart card. In 2009, Wang et al. showed that Das et al.-s protocol is not secure to randomly chosen password attack and impersonation attack, and proposed an improved protocol. Their protocol provided mutual authentication and efficient password management. In this paper, we analyze the security weaknesses and point out the vulnerabilities of Wang et al.-s protocol. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Message%20Alteration%20Attack" title="Message Alteration Attack">Message Alteration Attack</a>, <a href="https://publications.waset.org/search?q=Impersonation%20Attack" title=" Impersonation Attack"> Impersonation Attack</a> </p> <a href="https://publications.waset.org/1166/security-weaknesses-of-dynamic-id-based-remote-user-authentication-protocol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/1166/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/1166/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/1166/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/1166/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/1166/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/1166/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/1166/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/1166/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/1166/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/1166/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/1166.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1773</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">678</span> A Comparison of Bias Among Relaxed Divisor Methods Using 3 Bias Measurements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Sumachaya%20Harnsukworapanich">Sumachaya Harnsukworapanich</a>, <a href="https://publications.waset.org/search?q=Tetsuo%20Ichimori"> Tetsuo Ichimori</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The apportionment method is used by many countries, to calculate the distribution of seats in political bodies. For example, this method is used in the United States (U.S.) to distribute house seats proportionally based on the population of the electoral district. Famous apportionment methods include the divisor methods called the Adams Method, Dean Method, Hill Method, Jefferson Method and Webster Method. Sometimes the results from the implementation of these divisor methods are unfair and include errors. Therefore, it is important to examine the optimization of this method by using a bias measurement to figure out precise and fair results. In this research we investigate the bias of divisor methods in the U.S. Houses of Representatives toward large and small states by applying the Stolarsky Mean Method. We compare the bias of the apportionment method by using two famous bias measurements: the Balinski and Young measurement and the Ernst measurement. Both measurements have a formula for large and small states. The Third measurement however, which was created by the researchers, did not factor in the element of large and small states into the formula. All three measurements are compared and the results show that our measurement produces similar results to the other two famous measurements.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Apportionment" title="Apportionment">Apportionment</a>, <a href="https://publications.waset.org/search?q=Bias" title=" Bias"> Bias</a>, <a href="https://publications.waset.org/search?q=Divisor" title=" Divisor"> Divisor</a>, <a href="https://publications.waset.org/search?q=Fair" title=" Fair"> Fair</a>, <a href="https://publications.waset.org/search?q=Simulation" title=" Simulation"> Simulation</a> </p> <a href="https://publications.waset.org/10002522/a-comparison-of-bias-among-relaxed-divisor-methods-using-3-bias-measurements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10002522/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10002522/bibtex" 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