The Experts below are selected from a list of 201 Experts worldwide ranked by ideXlab platform
Thomas Peter - One of the best experts on this subject based on the ideXlab platform.
-
Wireless Networks for Dummies--For Dummies
Wireless Networks, 2004Co-Authors: D Barry, Thomas PeterAbstract:SUMMARY: Youve probably heard the expression, Its time to cut the cord. Well, it may be time to cut the cables at your office and free yourself from your desk and computer. Wireless networks are the waves of the futureliterally. Wireless Networks For Dummies guides you from design through implementation to ongoing protection of your system and your information so you can: Remain connected to the office in airports and hotels Access the Internet and other network resources in the lunchroom, conference room, or anywhere theres an access point Use your PDA or laptop to query your database from the warehouse or the boardroom Check e-mail wirelessly when youre on the road Get rid of the cable clutter in your office Wireless Networks For Dummies was coauthored by Barry D. Lewis, CISSP, and Peter T. Davis, who also coauthored Computer Security For Dummies. Barry Lewis is president of an information Security Consulting firm and an internationally known leader of Security seminars. Peter Davis is founder of a firm specializing in the Security, audit, and control of information. Together, they cut through the cables, clutter, and confusion and help you: Get off to a quick start and get mobile with IrDA (Infrared Data Association) and Bluetooth Perform a site survey and select the right standard, mode, access point, channel and antenna Check online to verify degree of interoperability of devices from various vendors Install clients and set up roaming Combat Security threats such as war driving, jamming, hijacking, and man-in-the-middle attacks Implement Security and controls such as MAC (Media Access Control) and protocol filtering, WEP (Wireless Equivalent Privacy), WPA, (Wi-Fi Protected Access), EAP (Extensible Authentication Protocol), and VPN (Virtual Private Network) Set up multiple access points to form a larger wireless network Complete with suggestions of places to get connected, Web sites where you can get more information, tools you can use to monitor and improve Security, and more, Wireless Networks For Dummies helps you pull the plug and go wireless!
-
Wireless Networks for Dummies
Wiley & Sons Inc., 2004Co-Authors: D Barry, Thomas PeterAbstract:SUMMARY: Youve probably heard the expression, Its time to cut the cord. Well, it may be time to cut the cables at your office and free yourself from your desk and computer. Wireless networks are the waves of the futureliterally. Wireless Networks For Dummies guides you from design through implementation to ongoing protection of your system and your information so you can: Remain connected to the office in airports and hotels Access the Internet and other network resources in the lunchroom, conference room, or anywhere theres an access point Use your PDA or laptop to query your database from the warehouse or the boardroom Check e-mail wirelessly when youre on the road Get rid of the cable clutter in your office Wireless Networks For Dummies was coauthored by Barry D. Lewis, CISSP, and Peter T. Davis, who also coauthored Computer Security For Dummies. Barry Lewis is president of an information Security Consulting firm and an internationally known leader of Security seminars. Peter Davis is founder of a firm specializing in the Security, audit, and control of information. Together, they cut through the cables, clutter, and confusion and help you: Get off to a quick start and get mobile with IrDA (Infrared Data Association) and Bluetooth Perform a site survey and select the right standard, mode, access point, channel and antenna Check online to verify degree of interoperability of devices from various vendors Install clients and set up roaming Combat Security threats such as war driving, jamming, hijacking, and man-in-the-middle attacks Implement Security and controls such as MAC (Media Access Control) and protocol filtering, WEP (Wireless Equivalent Privacy), WPA, (Wi-Fi Protected Access), EAP (Extensible Authentication Protocol), and VPN (Virtual Private Network) Set up multiple access points to form a larger wireless network Complete with suggestions of places to get connected, Web sites where you can get more information, tools you can use to monitor and improve Security, and more, Wireless Networks For Dummies helps you pull the plug and go wireless!
D Barry - One of the best experts on this subject based on the ideXlab platform.
-
Wireless Networks for Dummies--For Dummies
Wireless Networks, 2004Co-Authors: D Barry, Thomas PeterAbstract:SUMMARY: Youve probably heard the expression, Its time to cut the cord. Well, it may be time to cut the cables at your office and free yourself from your desk and computer. Wireless networks are the waves of the futureliterally. Wireless Networks For Dummies guides you from design through implementation to ongoing protection of your system and your information so you can: Remain connected to the office in airports and hotels Access the Internet and other network resources in the lunchroom, conference room, or anywhere theres an access point Use your PDA or laptop to query your database from the warehouse or the boardroom Check e-mail wirelessly when youre on the road Get rid of the cable clutter in your office Wireless Networks For Dummies was coauthored by Barry D. Lewis, CISSP, and Peter T. Davis, who also coauthored Computer Security For Dummies. Barry Lewis is president of an information Security Consulting firm and an internationally known leader of Security seminars. Peter Davis is founder of a firm specializing in the Security, audit, and control of information. Together, they cut through the cables, clutter, and confusion and help you: Get off to a quick start and get mobile with IrDA (Infrared Data Association) and Bluetooth Perform a site survey and select the right standard, mode, access point, channel and antenna Check online to verify degree of interoperability of devices from various vendors Install clients and set up roaming Combat Security threats such as war driving, jamming, hijacking, and man-in-the-middle attacks Implement Security and controls such as MAC (Media Access Control) and protocol filtering, WEP (Wireless Equivalent Privacy), WPA, (Wi-Fi Protected Access), EAP (Extensible Authentication Protocol), and VPN (Virtual Private Network) Set up multiple access points to form a larger wireless network Complete with suggestions of places to get connected, Web sites where you can get more information, tools you can use to monitor and improve Security, and more, Wireless Networks For Dummies helps you pull the plug and go wireless!
-
Wireless Networks for Dummies
Wiley & Sons Inc., 2004Co-Authors: D Barry, Thomas PeterAbstract:SUMMARY: Youve probably heard the expression, Its time to cut the cord. Well, it may be time to cut the cables at your office and free yourself from your desk and computer. Wireless networks are the waves of the futureliterally. Wireless Networks For Dummies guides you from design through implementation to ongoing protection of your system and your information so you can: Remain connected to the office in airports and hotels Access the Internet and other network resources in the lunchroom, conference room, or anywhere theres an access point Use your PDA or laptop to query your database from the warehouse or the boardroom Check e-mail wirelessly when youre on the road Get rid of the cable clutter in your office Wireless Networks For Dummies was coauthored by Barry D. Lewis, CISSP, and Peter T. Davis, who also coauthored Computer Security For Dummies. Barry Lewis is president of an information Security Consulting firm and an internationally known leader of Security seminars. Peter Davis is founder of a firm specializing in the Security, audit, and control of information. Together, they cut through the cables, clutter, and confusion and help you: Get off to a quick start and get mobile with IrDA (Infrared Data Association) and Bluetooth Perform a site survey and select the right standard, mode, access point, channel and antenna Check online to verify degree of interoperability of devices from various vendors Install clients and set up roaming Combat Security threats such as war driving, jamming, hijacking, and man-in-the-middle attacks Implement Security and controls such as MAC (Media Access Control) and protocol filtering, WEP (Wireless Equivalent Privacy), WPA, (Wi-Fi Protected Access), EAP (Extensible Authentication Protocol), and VPN (Virtual Private Network) Set up multiple access points to form a larger wireless network Complete with suggestions of places to get connected, Web sites where you can get more information, tools you can use to monitor and improve Security, and more, Wireless Networks For Dummies helps you pull the plug and go wireless!
Baird Webel - One of the best experts on this subject based on the ideXlab platform.
-
The Economic Impact of Cyber-Attacks: RL32331.
Congressional Research Service: Report, 2004Co-Authors: Brian Cashell, William D Jackson, Mark Jickling, Baird WebelAbstract:Information Security o?= the safeguarding of computer systems and the integrity, confidentiality, and availability of the data they contain o?= has long been recognized as a critical national policy issue. Its importance is growing as the integration of computers into more and more aspects of modern life continues. In addition, cyberattacks, or breaches of information Security, appear to be increasing in frequency, and few are willing to ignore the possibility that the severity of future attacks could be much greater than what has been observed to date. A central issue, in both public and private sectors, is whether we are devoting enough resources to information Security. Part of the answer must come from economic analysis. What are the costs, both historical and potential, of Security breaches? How frequently can attacks be expected? Can these factors be quantified precisely, so that organizations can determine the optimal amount to spend on information Security and measure the effectiveness of that spending? No one in the field is satisfied with our present ability to measure the costs and probabilities of cyber-attacks. There are no standard methodologies for cost measurement, and study of the frequency of attacks is hindered by the reluctance of organizations to make public their experiences with Security breaches. This report summarizes the limited empirical data on attack costs, and surveys recent theoretical work that seeks to overcome the absence of reliable and comprehensive statistics. Investigations into the stock price impact of cyber-attacks show that identified target firms suffer losses of 1%-5% in the days after an attack. For the average New York Stock Exchange corporation, price drops of these magnitudes translate into shareholder losses of between $50 million and $200 million. Several computer Security Consulting firms produce estimates of total worldwide losses attributable to virus and worm attacks and to hostile digital acts in general. The 2003 loss estimates by these firms range from $13 billion (worms and viruses only) to $226 billion (for all forms of overt attacks). The reliability of these estimates is often challenged; the underlying methodology is basically anecdotal. The insurance industry's response to rising perceptions of cyber-risk has been twofold. Initially, most companies excluded, and continue to exclude, cyber-attacks from standard business insurance coverage. After this initial exclusion, several insurers then began selling specialized cyber-risk policies. Growth of the market has been slow; lacking the empirical data to construct actuarial tables, insurers are unable to price risk with the degree of confidence they enjoy in traditional insurance lines. Estimates of the macroeconomic costs of cyber-attacks are speculative. As long as any cyber-attack is limited in scope and short-lived it is likely that macroeconomic consequences will be small. But the ability to recover quickly is important, since the length of time computers are affected is an important determinant of the costs. It may be almost as important for firms to address their abilities to restore operations as to insulate themselves from potential attacks. This report will not be updated. [ABSTRACT FROM AUTHOR]
-
CRS report for Congress - The Economic Impact Cyber-Attacks
CRS Report for Congress, 2004Co-Authors: Brian Cashell, William D Jackson, Mark Jickling, Baird WebelAbstract:nformation Security – the safeguarding of computer systems and the integrity,confidentiality, and availability of the data they contain – has long been recognizedas a critical national policy issue. Its importance is growing as the integration of computers into more and more aspects of modern life continues. In addition, cyber-attacks, or breaches of information Security, appear to be increasing in frequency,and few are willing to ignore the possibility that the severity of future attacks couldbe much greater than what has been observed to date.A central issue, in both public and private sectors, is whether we are devotingenough resources to information Security. Part of the answer must come fromeconomic analysis. What are the costs, both historical and potential, of Securitybreaches? How frequently can attacks be expected? Can these factors be quantifiedprecisely, so that organizations can determine the optimal amount to spend oninformation Security and measure the effectiveness of that spending?No one in the field is satisfied with our present ability to measure the costs andprobabilities of cyber-attacks. There are no standard methodologies for costmeasurement, and study of the frequency of attacks is hindered by the reluctance of organizations to make public their experiences with Security breaches. This reportsummarizes the limited empirical data on attack costs, and surveys recent theoreticalwork that seeks to overcome the absence of reliable and comprehensive statistics.Investigations into the stock price impact of cyber-attacks show that identifiedtarget firms suffer losses of 1%-5% in the days after an attack. For the average NewYork Stock Exchange corporation, price drops of these magnitudes translate intoshareholder losses of between $50 million and $200 million.Several computer Security Consulting firms produce estimates of totalworldwide losses attributable to virus and worm attacks and to hostile digital acts ingeneral. The 2003 loss estimates by these firms range from $13 billion (worms andviruses only) to $226 billion (for all forms of overt attacks). The reliability of theseestimates is often challenged; the underlying methodology is basically anecdotal.The insurance industry’s response to rising perceptions of cyber-risk has beentwofold. Initially, most companies excluded, and continue to exclude, cyber-attacksfrom standard business insurance coverage. After this initial exclusion, severalinsurers then began selling specialized cyber-risk policies. Growth of the market hasbeen slow; lacking the empirical data to construct actuarial tables, insurers are unableto price risk with the degree of confidence they enjoy in traditional insurance lines.Estimates of the macroeconomic costs of cyber-attacks are speculative. As longas any cyber-attack is limited in scope and short-lived it is likely that macroeconomicconsequences will be small. But the ability to recover quickly is important, since thelength of time computers are affected is an important determinant of the costs. Itmay be almost as important for firms to address their abilities to restore operationsas to insulate themselves from potential attacks.This report will not be update
Mohamed A. Mohamed - One of the best experts on this subject based on the ideXlab platform.
-
ECC - Development of Iris Security System Using Adaptive Quality-Based Template Fusion
Advances in Intelligent Systems and Computing, 2015Co-Authors: Mohamed A. Mohamed, M. A. Abou-el-soudAbstract:Recently, the interface of computer technologies and biology has an enormous impact on society. Human recognition research projects promise a new life to various Security Consulting. Iris recognition is considered to be one of the exceedingly reliable authentication systems. To account for iris data variations, nearly of all iris systems store multiple templates per each user. Approaching to overcome the storage space and computation overheads, this paper proposes an intelligent fusion technique, algorithms, and suggestions. The quality of the input image has been checked firstly to ensure that “qualified iris samples” will be only treated. The proposed system, with the aid of the image selection stage and template quality test, has the advantage of being adaptive and simple, but can come at the expense of reject extremely inadequate data for any user. Complete the eye shape using the convex hull is the main key for image selection module. Shape-based thresholding is integrated with morphological features to avoid the dark iris problems, elliptical pupil and iris shapes. For best recognition rate, the optimum values of the 1D log Gabor filter parameters and different sizes of the iris code are recorded. From experimental results, an HD value of 0.4 can be chosen as a suitable separation point, and the optimum code size was found to be 20 × 480. An experimental work reveals a reduction in database size by nearly a 78 % and an increase of verification speed of about 85.25 % is achieved while 14.75 % of computation time in the shifting process is only required. Comparing with existing algorithms, the proposed algorithm gives an accuracy of 96.52 and 99.72 % for TRR and TAR, respectively for closed loop tested dataset. In addition, with a number of experimentations, the proposed algorithm gives the lowest FAR and FRR of 0.0019 and 0.00287 % respectively and EER of 0.0024 %.
-
Iris Detection and Normalization in Image Domain Based on Morphological Features
2014Co-Authors: Mohamed A. Mohamed, Mohy Eldin, A. Abou-el-soudAbstract:The interface of computer technologies and biology is having a huge impact on society. Human recognition research projects promises new life to many Security-Consulting. Iris recognition is considered to be the most reliable biometric authentication system. Very few iris recognition algorithms were commercialized. We implemented a system that process two different kinds of iris databases: CASIA and UPOL. The first is grayscale data; noise free of reflections but containing obstructions; e.g. eyelids and eyelashes. While the second is RGB data; noise free of obstructions; because it is segmented, but it contains reflections. The circular iris and pupil of the eye image were segmented using Morphological operators and Hough transform. The localized iris region was then normalized into a rectangular block to account for imaging inconsistencies. This method provides accurate features as well as accurate signature of the human iris in a simple and fast way.
-
Improving Iris Localization Performance Using Image Processing Tools: Multi-Input Databases
2014Co-Authors: Mohamed A. Mohamed, Mohy Eldin, A. Abou-el-soudAbstract:The interface of computer technologies and biology is having a huge impact on society. Human recognition research projects promises new life to many Security-Consulting. Iris recognition is considered to be the most reliable biometric authentication system. Image quality plays a crucial role in any pattern matching system. Three different iris databases have been employed for comparison of performance of proposed iris detection and isolation technique based on morphological features. CASIA, UPOL, and UBIRIS databases were processed as different types of noise like iris obstruction by eyelids, eyelashes, lighting reflections, and poor focused images. To process the iris patterns in an efficient and effective way against existing methods, many simple and effective image processing methods have been presented in image selection, iris preprocessing, iris segmentation, iris localization, and isolation. Experimental results show that our method achieves an accuracy of 100% for select best iris data, and 99% for isolate iris region.
-
An efficient algorithm in extracting human iris Morphological features
2009 International Conference on Networking and Media Convergence, 2009Co-Authors: Mohamed A. Mohamed, Mohy Eldin A. Abou-elsoudAbstract:The interface of computer technologies and biology is having a huge impact on society. Human recognition research projects promises new life to many Security-Consulting firms and personal identification system manufacturers. Iris recognition is considered to be the most reliable biometric authentication system. Very few iris recognition algorithms were commercialized. The method proposed in this paper differed from the existing work in the iris segmentation and feature extraction phase. Digitized grayscale images of Chinese Academy of Sciences-Institute of Automation (CASIA) database were used for determining the performance of the proposed system. The circular iris and pupil of the eye image were segmented using morphological operators and Hough transform. The localized iris region was then normalized in to a rectangular block to account for imaging inconsistencies. This method provides accurate features as well as simple and fast iris analysis methods.
-
Automated algorithm for iris detection and code generation
2009 International Conference on Computer Engineering & Systems, 2009Co-Authors: Mohamed A. Mohamed, M. A. Abou-el-soudAbstract:The interface of computer technologies and biology is having a huge impact on society. Human recognition research projects promises new life to many Security-Consulting firms and personal identification system manufacturers. Iris recognition is considered to be the most reliable biometric authentication system. Very few iris recognition algorithms were commercialized. The method proposed in this paper differed from the existing work in the iris segmentation and feature extraction phase. Digitized grayscale images of Chinese Academy of Sciences-Institute of Automation (CASIA) database were used for determining the performance of the proposed system. The circular iris and pupil of the eye image were segmented using morphological operators as well as circular Hough transform. The localized iris region was then normalized into a rectangular block to account for imaging inconsistencies. Finally, the corresponding iris code was generated using the Euclidean distance. This method provides accurate signature as well as accurate code of the human iris in a simple and fast way.
Brian Cashell - One of the best experts on this subject based on the ideXlab platform.
-
The Economic Impact of Cyber-Attacks: RL32331.
Congressional Research Service: Report, 2004Co-Authors: Brian Cashell, William D Jackson, Mark Jickling, Baird WebelAbstract:Information Security o?= the safeguarding of computer systems and the integrity, confidentiality, and availability of the data they contain o?= has long been recognized as a critical national policy issue. Its importance is growing as the integration of computers into more and more aspects of modern life continues. In addition, cyberattacks, or breaches of information Security, appear to be increasing in frequency, and few are willing to ignore the possibility that the severity of future attacks could be much greater than what has been observed to date. A central issue, in both public and private sectors, is whether we are devoting enough resources to information Security. Part of the answer must come from economic analysis. What are the costs, both historical and potential, of Security breaches? How frequently can attacks be expected? Can these factors be quantified precisely, so that organizations can determine the optimal amount to spend on information Security and measure the effectiveness of that spending? No one in the field is satisfied with our present ability to measure the costs and probabilities of cyber-attacks. There are no standard methodologies for cost measurement, and study of the frequency of attacks is hindered by the reluctance of organizations to make public their experiences with Security breaches. This report summarizes the limited empirical data on attack costs, and surveys recent theoretical work that seeks to overcome the absence of reliable and comprehensive statistics. Investigations into the stock price impact of cyber-attacks show that identified target firms suffer losses of 1%-5% in the days after an attack. For the average New York Stock Exchange corporation, price drops of these magnitudes translate into shareholder losses of between $50 million and $200 million. Several computer Security Consulting firms produce estimates of total worldwide losses attributable to virus and worm attacks and to hostile digital acts in general. The 2003 loss estimates by these firms range from $13 billion (worms and viruses only) to $226 billion (for all forms of overt attacks). The reliability of these estimates is often challenged; the underlying methodology is basically anecdotal. The insurance industry's response to rising perceptions of cyber-risk has been twofold. Initially, most companies excluded, and continue to exclude, cyber-attacks from standard business insurance coverage. After this initial exclusion, several insurers then began selling specialized cyber-risk policies. Growth of the market has been slow; lacking the empirical data to construct actuarial tables, insurers are unable to price risk with the degree of confidence they enjoy in traditional insurance lines. Estimates of the macroeconomic costs of cyber-attacks are speculative. As long as any cyber-attack is limited in scope and short-lived it is likely that macroeconomic consequences will be small. But the ability to recover quickly is important, since the length of time computers are affected is an important determinant of the costs. It may be almost as important for firms to address their abilities to restore operations as to insulate themselves from potential attacks. This report will not be updated. [ABSTRACT FROM AUTHOR]
-
CRS report for Congress - The Economic Impact Cyber-Attacks
CRS Report for Congress, 2004Co-Authors: Brian Cashell, William D Jackson, Mark Jickling, Baird WebelAbstract:nformation Security – the safeguarding of computer systems and the integrity,confidentiality, and availability of the data they contain – has long been recognizedas a critical national policy issue. Its importance is growing as the integration of computers into more and more aspects of modern life continues. In addition, cyber-attacks, or breaches of information Security, appear to be increasing in frequency,and few are willing to ignore the possibility that the severity of future attacks couldbe much greater than what has been observed to date.A central issue, in both public and private sectors, is whether we are devotingenough resources to information Security. Part of the answer must come fromeconomic analysis. What are the costs, both historical and potential, of Securitybreaches? How frequently can attacks be expected? Can these factors be quantifiedprecisely, so that organizations can determine the optimal amount to spend oninformation Security and measure the effectiveness of that spending?No one in the field is satisfied with our present ability to measure the costs andprobabilities of cyber-attacks. There are no standard methodologies for costmeasurement, and study of the frequency of attacks is hindered by the reluctance of organizations to make public their experiences with Security breaches. This reportsummarizes the limited empirical data on attack costs, and surveys recent theoreticalwork that seeks to overcome the absence of reliable and comprehensive statistics.Investigations into the stock price impact of cyber-attacks show that identifiedtarget firms suffer losses of 1%-5% in the days after an attack. For the average NewYork Stock Exchange corporation, price drops of these magnitudes translate intoshareholder losses of between $50 million and $200 million.Several computer Security Consulting firms produce estimates of totalworldwide losses attributable to virus and worm attacks and to hostile digital acts ingeneral. The 2003 loss estimates by these firms range from $13 billion (worms andviruses only) to $226 billion (for all forms of overt attacks). The reliability of theseestimates is often challenged; the underlying methodology is basically anecdotal.The insurance industry’s response to rising perceptions of cyber-risk has beentwofold. Initially, most companies excluded, and continue to exclude, cyber-attacksfrom standard business insurance coverage. After this initial exclusion, severalinsurers then began selling specialized cyber-risk policies. Growth of the market hasbeen slow; lacking the empirical data to construct actuarial tables, insurers are unableto price risk with the degree of confidence they enjoy in traditional insurance lines.Estimates of the macroeconomic costs of cyber-attacks are speculative. As longas any cyber-attack is limited in scope and short-lived it is likely that macroeconomicconsequences will be small. But the ability to recover quickly is important, since thelength of time computers are affected is an important determinant of the costs. Itmay be almost as important for firms to address their abilities to restore operationsas to insulate themselves from potential attacks.This report will not be update