International Journal of Computer Network and Information Security @ijcnis
Статьи журнала - International Journal of Computer Network and Information Security
Все статьи: 1130
Criteria Specifications for the Comparison and Evaluation of Access Control Models
Статья научная
Nowadays, information systems cover all-important aspects of people's life, and computer applications are vastly used in widespread fields from medicine to military sector. Because of considerable dependence on computer-based systems, the security of the information saved in these systems is of great concern, and therefore, the complexity of data protection and availability of many modern systems are increasing. Access control is considered as the core of information security and the center of data protection and availability of needs. In the organizations, whose operations require the share of digital resources with different degrees of sensitivity, such an access control is crucially required. Considering the diverse structure, requirements, and specifications of an organization, and taking into account that access control policies and models are available in diverse forms, it is required to select and implement an appropriate access control model consistent with the security requirements of the related organization in order to achieve the best results and minimum access risks and threats. In this paper, the main and most important criteria in the different access control models are evaluated and finally, the most appropriate model is introduced for implementation based on the security policies and requirements of organizations and the specifications of each access control model.
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Cross Layer Transmission for AOS Packet Service
Статья научная
In this paper, the AOS packet service data transfers structure is presented first. Based on it, the effective throughput rate of AOS packet service is analyzed. Then, in order to improve the effective throughput rate, a scheme of AOS cross layer transmission system is presented. In the proposed scheme, based on the space channel state, the dynamic optimization parameters of network layer, Space Date Link Protocol sublayer and Sync and Channel Coding sublayer in AOS are selected. Then the switch thresholds are presented. Finally, the effective throughput rate of the proposed AOS cross layer transmission system is simulated. Simulations show that the throughput rate can be optimized effectively.
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Cryptography Using Multiple Two-Dimensional Chaotic Maps
Статья научная
In this paper, a symmetric key block cipher cryptosystem is proposed, involving multiple two-dimensional chaotic maps and using 128-bits external secret key. Computer simulations indicate that the cipher has good diffusion and confusion properties with respect to the plaintext and the key. Moreover, it produces ciphertext with random distribution. The computation time is much less than previous related works. Theoretic analysis verifies its superiority to previous cryptosystems against different types of attacks.
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Cryptography based on RGB color channels using ANNs
Статья научная
Information is by far the most precious thing in almost every field. Everything we do in the present-day world generated some data and most of the data are vulnerable to unwanted threats. The organizations and agencies are becoming more and more dependent on their digitized information systems. Also, the general public is slowly getting cyber- conscious and thus they also fear for the leak and tampering of their secured information. Today’s information systems are under the constant threats of manipulation and overriding by various criminal organizations. Thus, the information in today’s world is kept under the password authentication. These passwords are a combination of a string of alphanumeric and special characters. Also, the key used to encrypt the information are exposed to either both or one of the parties. To overcome this vulnerability, an encryption technique is proposed where the key will be generated and transmitted using TPM and the final encrypted text will be stored in the image format by segregating the text data into the 3-channelled image, i.e., RGB.
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Статья научная
Grid computing incorporates dispersed resources to work out composite technical, industrial, and business troubles. Thus a capable scheduling method is necessary for obtaining the objectives of grid. The disputes of parallel computing are commencing with the computing resources for the number of jobs and intricacy, craving, resource malnourishment, load balancing and efficiency. The risk stumbling upon parallel computing is the enthusiasm to scrutinize different optimization techniques to achieve the tasks without unsafe surroundings. Here Cuckoo Genetic Optimization Algorithm (CGOA) is established that was motivated from cuckoo optimization algorithm (COA) and genetic algorithm (GA) for task scheduling in parallel environment (grid computing system). This CGOA is implemented on parallel dealing out for effective scheduling of multiple tasks with less schedule length and load balance. Here transmission time is evaluated with number of job set. This is computed with the help of job-processor relationship. This technique handles the issues well and the results show that complexity, load balance and resource utilization are finely managed.
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Cuckoo optimisation based intrusion detection system for cloud computing
Статья научная
In the digital era, cloud computing plays a significant role in scalable resource sharing to carry out seamless computing and information sharing. Securing the data, resources, applications and infrastructure of the cloud is a challenging task among the researchers. To secure the cloud, cloud security controls are deployed in the cloud computing environment. The cloud security controls are roughly classified as deterrent controls, preventive controls, detective controls and corrective controls. Among these, detective controls are significantly contributing for cloud security by detecting the possible intrusions to prevent the cloud environment from the possible attacks. This detective control mechanism is established using intrusion detection system (IDS). The detecting accuracy of the IDS greatly depends on the network traffic data that is employed to develop the IDS using machine-learning algorithm. Hence, this paper proposed a cuckoo optimisation-based method to preprocess the network traffic data for improving the detection accuracy of the IDS for cloud security. The performance of the proposed algorithm is compared with the existing algorithms, and it is identified that the proposed algorithm performs better than the other algorithms compared.
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Cumulative Techniques for Overcoming Security Threats in Manets
Статья научная
In day-to-day communications we may need to establish temporary (ad hoc) connections anytime, anywhere. Data transfer through this ad hoc wireless network is required when it is hard to establish the large infrastructure. In MANETs there are many challenges in terms of deploying security especially when the confidentiality of the data is compromised. If the data is highly confidential, then providing security especially in the malicious environment is really a challenging task. Many researchers have however proposed solutions for internal as well as external attacks. But unfortunately everyone has some tradeoffs. Some methods are designed only for specific attacks. Some provide solutions for many attacks but depend on the factors like delay, high resource utilization etc. In this paper, we have in sighted into various security providing techniques that have cumulated from many years. We have attempted to present the current approaches for developing secured systems. These methods have used simple techniques to enhance the security and to reduce the complexity. There are many surveys done before on the security issues and methods. However to our information no one has surveyed the current emerging secured methods which may be more effective than the mostly used ones.
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