This paper describes a novel quantitative analysis model for system survivability based on conflict analysis, which provides a direct-viewing survivable situation. Based on the three-dimensional state space of conflic...
详细信息
This paper describes a novel quantitative analysis model for system survivability based on conflict analysis, which provides a direct-viewing survivable situation. Based on the three-dimensional state space of conflict, each player’s efficiency matrix on its credible motion set can be obtained. The player whose desire is the strongest in all initiates the moving and the overall state transition matrix of information system may be achieved. In addition, the process of modeling and stability analysis of conflict can be converted into a Markov analysis process, thus the obtained results with occurring probability of each feasible situation will help the players to quantitatively judge the probability of their pursuing situations in conflict. Compared with the existing methods which are limited to post-explanation of system’s survivable situation, the proposed model is relatively suitable for quantitatively analyzing and forecasting the future development situation of system survivability. The experimental results show that the model may be effectively applied to quantitative analysis for survivability. Moreover, there will be a good application prospect in practice.
We will present an one-dimensional polynomial basis array multiplier for performing multiplications in finite field GF(2m). A linear feedback shift register is employed in our proposed multiplier for reducing space co...
详细信息
We will present an one-dimensional polynomial basis array multiplier for performing multiplications in finite field GF(2m). A linear feedback shift register is employed in our proposed multiplier for reducing space complexity. As compared to other existing two-dimensional polynomial basis multipliers, our proposed linear array multiplier drastically reduces the space complexity from O(m2) to O(m). A new two-dimensional systolic array version of the proposed array multiplier is also included in this paper. The proposed two-dimensional systolic array multiplier saves about 30% of space complexity and 27% of time complexity while comparing with other two-dimensional systolic array multipliers.
This paper presents the design and implementation of a tele-emergent system to provide constant monitoring of cardiac patients. Our system is consisted of a user integration device attached to the patient, a wireless ...
详细信息
Recently, cryptographic applications based on finite fields have attracted much interest. This paper presents a unified systolic multiplier under the method of the multiply-by-α2 and the folded technique. This circui...
详细信息
One of the primary challenges in IDS alerts analysis is controlling and archiving the huge amount of alerts that have been triggered mainly in attack periods. We have developed a self-adaptive controlling mechanism wh...
详细信息
ISBN:
(纸本)1595934804;9781595934802
One of the primary challenges in IDS alerts analysis is controlling and archiving the huge amount of alerts that have been triggered mainly in attack periods. We have developed a self-adaptive controlling mechanism which archives the Snort generated alerts in a well-formed abstracted format. An appropriate hashing technique along with a full-automated time-based hierarchical archiving approach has been used to reach this end. The developed system prevents the Snort database size to grow uncontrollably and unexpectedly. Results obtained from experiments and test cases show that especially in critical attack situations the system responds to queries well in a reasonable amount of time. The developed analyzer with new archiving approach is also able to compress the generated alerts effectively and generate statistical reports fast. The developed system is platform independent and can be deployed on mid-range servers and workstations. Also employing it does not require much degree of security expertise. Copyright 2007 ACM.
In this paper,we define a model of random dynamical systems(RDS)on graphs and prove that they are actually homogeneous discrete-time Markov ***,a necessary and sufficient condition is obtained for that two state vecto...
详细信息
In this paper,we define a model of random dynamical systems(RDS)on graphs and prove that they are actually homogeneous discrete-time Markov ***,a necessary and sufficient condition is obtained for that two state vectors can communicate with each other in a random dynamical system(RDS).
Shape representation and matching is a not only important but also challenging part in image retrieval. In our previous work, a shape-based image retrieval system was proposed. The Mountain Climbing Sequence (MCS) is ...
详细信息
Shape representation and matching is a not only important but also challenging part in image retrieval. In our previous work, a shape-based image retrieval system was proposed. The Mountain Climbing Sequence (MCS) is used to represent the shape feature of an object, which is invariant to some transformations such as translation, scaling, rotation, and even reversion, and also has a high tolerance for occlusion and noise. In this paper we improve this system, in terms of both retrieval precision and time efficiency, by adopting the Longest Common Subsequence (LCS) matching mechanism to match two MCSs more effectively and utilizing the Selection algorithm to speed up the retrieval process. Experimental results show that the improved system has far better performance. Especially it copes with the occlusion problem very well;that is, it has higher tolerance for occlusion.
Role-Based Access Control (RBAC) model is naturally suitable to organizations where users are assigned organizational roles with well-defined privileges. However, due to the large number of users in nowadays online se...
详细信息
As a security principle, separation of duty (SoD) is widely considered in computer security. In the role-based access control(RBAC) model, separation of duty constraints enforce conflict of interest policies. There ar...
详细信息
暂无评论