Research On Risk Evaluation Model Based On Entity Behavior Among Multi-Entities

ABSTRACT:Mobile communication network is now in rapid development. Its position occupied by people's social lives is increasingly important. It brings the convenience to people's lives, but also brought a lot of security issues. And with the extensive application of information technology, information security issues become more and more complex. Currently in the mobile communication system, mainly through mechanisms and cryptographic algorithms such as authentication technology research to improve security, while ignoring very important in the information security approach-security risk assessment, so the study of a security risk assessment model is high theoretical and practical significance.Currently, there is generally used to solve the information security risk management system and organizational security issues. Any organization and system reliability is suitable for the information security level of preparation. At home and abroad, many experts agree that information security risk management is the most effective and scientific method to address organizational and system security. The information security risk assessment is the key to information security risk management. It has become an important element in the research field of information security how to conduct security risk assessment of systems and organizations and confirm the existence of organized security threats and timely maintenance of systems and organizations to minimize the risk of research in the information security. Security Risk Assessment Model is research priorities of security risk assessment. At present, many of the risk assessment model for safety assessment, mainly for computer network and system security assessment, for the wireless mobile communication system network security risk assessment model for less.This article describes the information security risk assessment concepts and classic security risk assessment methods, and analyzes the structure of mobile communication systems, common in the study of several domestic and international information security standards and analysis of security risk assessment methodology, based on this constructed Based on the safety behavior among multi-entity risk assessment model to solve security risk assessments for multiple entities of the mobile communication system at the same time, and sensitivity analysis with the results of security risk assessment to ensure that assessment results in a real environment to achieve high accuracy.Proposed in this paper multi-behavior inter-entity security assessment based on the entity model, is considering a combination of qualitative and quantitative safety assessment methods and the weight of each evaluation index, combined with fuzzy thinking, in a number of entities to do analysis and evaluation for each security index. Finally analysis the accuracy of the value of a security risk result.