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Showing 3 results for Information Security
Mansour Esmaeilpour, Mina Feili,
Volume 4, Issue 2 (3-2016)
Abstract
Standards in the field of IT security, due to the youthfulness of this area, it is relatively new, but the long history of standard processes, leading to a mature and efficient development of standards in this area. Several researches have been done in the field of information security that shows the breadth and complexity of information security, as well as, several standards has been developed in this field. Ignoring the information security is as open embrace risky on a variety of issues that may be faced in doing anything with it. Information security plays an important role in protecting the assets of the organization. As regards that no formula cannot guarantee complete security, however, need to a series of criteria and standards to achieve the appropriate level of information security resources to be used effectively and the best way to adopt security. Each of them has covered a specific aspect of security, and sometimes a set of standards to cover only one aspect of security. The adoption of information security standards, it must first be emphasized to match the original standard and note that proportionality is localized or they may create problems. The present research introduces the world deal with information security standards. It will be discussed that how to change views of information security in detail, and introduced a variety of tools and solutions.
Mohammad Darvishi, Majid Ghayoori,
Volume 8, Issue 2 (2-2020)
Abstract
Intrusion detection systems are responsible for diagnosing and detecting any unauthorized use of the system, exploitation or destruction, which is able to prevent cyber-attacks using the network package analysis. one of the major challenges in the use of these tools is lack of educational patterns of attacks on the part of the engine analysis; engine failure that caused the complete training, the result is in production of high volumes of false warnings. On the other hand, the high level of intrusion detection training time will cause a significant delay in the training system. Therefore, in the analysis section of the intrusion detection system, we need to use an algorithm that shows significant performance with the least educational data, hidden Markov model is one of these successful algorithms in this field.
This Research also is trying to provide a misuse based intrusion detection solution with the focus of the evolutionary Hidden Markov model, the EHMM, which is designed to overcome the challenges posed. The most important part of hidden Markov model is to adjust the values of the parameters, the more adjusted values, optimal values would be more effective. The hidden Markov model is more likely to predict the probability of future values. Therefore, it has been trying to end the mail based on the causative analysis of NSL data sets-KDD using evolutionary programming algorithm for hidden Markov model for the optimal parameters and sort of teach it. Then, using it, the types of attacks in the dataset were identified. To evaluate the success rate in improving the accuracy percentage EHMM proposal intrusion detection, MATLAB System simulation environment has been implemented. The results of the investigation show fitted, EHMM plan, the percentage of the average is 87% of intrusion detection (if hidden Markov model is used normal) to over 92% (in the case of the hidden Markov model using evolutionary) increases. Also after training the training data in both methods based on conventional and evolutionary Markov model, the time of the target system for a training data set is approximately two hundred thousand record from low average of 489 minutes to more than 400 minutes has been dropped in the proposed method. This outcome achievement and making it operational on intrusion detection for the native system, can cause a defensive improvement which can be fitted in front of the other country for hostile cyber.
Mr Mohamad Jari, Miss Fariba Nazari,
Volume 8, Issue 2 (2-2020)
Abstract
The purpose of this study is to identify and prioritize the effective technical and technical stress factors of information security by IT experts identified in Aghajari oil and gas Exploitation Company. The statistical population of the study consisted of 100 ICT managers and experts in Aghajari Oil and Gas Co. which directly related to the security of information in the company, 80 of them were selected as samples. In this research, the first questionnaire was designed with the aim of identifying the factors and half-openness. The second questionnaire was designed with the aim of screening the identified factors as closed and based on Likert's five-choice spectrum. Finally, a third questionnaire was designed with the aim of determining the weights and rank of each one of the factors and in a pair comparison. The necessary analysis was carried out through the software SSS, Excel, ExpressChevis and MATLAB. The results of the research led to the identification of two main factors (occupational stressors and technical stressful factors influencing information security by IT experts in Aghajari oil and gas Exploitation Company) and 14 sub factors and then their rank were determined.
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