Оценка вероятности ошибки CRC при малом искажении передаваемой информации
A white binary noise information distortion model is proposed in previous our papers.
In this paperwork we analyze limiting behavior of CRC error probabilities with low values of p, which stands for distortion probability of a single bit that belongs to the information being transferred.
Using acquired theoretical results we assess values of error probabilities to claim transferred information packet undistorted having at least one distortion for protocols E1 and TTSI EN 302307 as examples.
Widespread acceptance and adoption of cloud computing calls for adaptation and development of existing risk assessment models of information systems. The approach suggested in this article can be used for risk assessment of information systems functioning on the basis of cloud computing technology, and assess the effectiveness of security measures.
Separating codes have been used in many areas as diverse as automata synthesis, technical diagnosis and traitor tracing schemes. In this paper, we study a weak version of separating codes called almost separating codes. More precisely, we derive lower bounds on the rate of almost separating codes. From the main result it is seen that the lower bounds on the rate for almost separating codes are greater than the currently known lower bounds for ordinary separating codes. Moreover, we also show how almost separating codes can be used to construct a family of fingerprinting codes.
Some provisions of SWOT analysis and assessment of its productivity in business are criticized.
The use of hardware virtualization for ensuring information security is discussed. A review of various approaches to improving the security of software systems based on virtualization is given. A review of possible scenarios of using virtualization by intruders is also presented. The application domains and limitations of the available solutions and perspectives of future development in the field are discussed.
This paperwork overviews core technologies implemented by comparably new products at information security market - web application firewalls. Web applications are a very wide-used and convenient way of presenting remote users with access to corporate information resources. It can however become single point of failure rendering all the information infrastructure unreachable for legitimate clients. To prevent malicious access attempts to endpoint information resources and, intermediately, to web server, a new class of information security solutions has been created. Web application firewalls function at the highest, seventh layer of ISO/OSI model and serves as a controlling tunnel for all the traffic heading to and from company’s web application server(s). To ensure decent levels of traffic monitoring and intrusion prevention web application firewalls are equipped with various mechanisms of data exchange session “normalness” control. These mechanisms include protocol check routines, machine learning techniques, traffic signature analysis and more dedicated means like denial of service, XSS injection and CRRF attack prevention. Ability to research and add user rules to be processed along with vendor-provided ones is important since every company has its own security policy and, therefore the web application firewall should provide security engineers with ways to tweak its rules to reflect the security policy more precisely. This research is based on wide practice experience integrating web application firewalls into security landscape of various organizations, their administration and customization. We illustrate our research of available filtering mechanisms and their implementations with example product features by market leaders, schemes and screenshots from real web application firewall systems.
The Conference is focused on the actual problems in the field of Quality Management, Transport and Information Security, Information Technologies (Navigation and Information Systems, Information Security Systems and Computer Security, Transport Security Management, Information and Communication Technologies in Education, Scientific Research and Economy, Automation of Business Processes, Automated Systems of Control and Quality Management, Quality Management Systems including Integrated Systems of Quality Management of Information Systems (Implementation, Certification, Auditing), Engineering Management, IT Service Management, Management of Projects and Risks as well as other issues related to the field). Previous Conferences on these topics revealed great interest of both Russian and foreign researchers in this issues. Organizing and hosting the 2016 IEEE Conference on Quality Management, Transport and Information Security, Information Technologies (IT&MQ&IS) in Russia is of great value for exchange of research ideas and practical results in this field, for discovering new problems and development trends, for development of new effective practical methods and tools targeted on solving complex practical problems. During the IT&MQ&IS 2016 Conference sessions, it is expected and planned to discuss a wide range of issues, both of theoretical and practical value. One of the key Conference aims is also attracting young researchers and practitioners to discussions and exchange of ideas with the professional community.
We consider certain spaces of functions on the circle, which naturally appear in harmonic analysis, and superposition operators on these spaces. We study the following question: which functions have the property that each their superposition with a homeomorphism of the circle belongs to a given space? We also study the multidimensional case.
We consider the spaces of functions on the m-dimensional torus, whose Fourier transform is p -summable. We obtain estimates for the norms of the exponential functions deformed by a C1 -smooth phase. The results generalize to the multidimensional case the one-dimensional results obtained by the author earlier in “Quantitative estimates in the Beurling—Helson theorem”, Sbornik: Mathematics, 201:12 (2010), 1811 – 1836.
We consider the spaces of function on the circle whose Fourier transform is p-summable. We obtain estimates for the norms of exponential functions deformed by a C1 -smooth phase.