• Journal of Information Technology Services
• /
• v.12 no.1
• /
• pp.289-308
• /
• 2013

This study proceeded to examine the cause of the continuous secret information leakage in the firms. The purpose of this study is to find out what type of security among administrative, technological and physical security would have important influence on firm's security performance such as the security-incident response competence. We established the model that can empirically verify correlation between those three types of security and the security-incident response competence. In addition, We conducted another study to look at relation between developing department of security in the firms and reaction ability at the accidents. According to the study, the administrative security is more important about dealing with the security-incident response competence than the rest. Furthermore, a group with department of security has better the security-incident response competence and shows higher competence in fixing or rebuilding the damage. Therefore, this study demonstrates that investing in administrative security will be effective for the firm security.

• KIPS Transactions on Computer and Communication Systems
• /
• v.1 no.2
• /
• pp.103-108
• /
• 2012

Recently, IT Governance has been applied to business management environment. In this paper, we study business model that can minimize information security risk using IT governance in cloud computing environment. Especially, we propose the interaction model that link risk management for subject of information security governance. In our model, synergy means the effective, strategic and secure business support. And interaction analysis of BMIS's 4 elements and 6 dynamic interconnections is required. Therefore we propose interaction model which can link risk management based on COSO ERM or COBIT Risk IT Framework.

• Journal of Information Technology Applications and Management
• /
• v.11 no.1
• /
• pp.39-51
• /
• 2004

Application systems outsourcing is an important part of IT outsourcing services. Application systems outsourcing costs is determined by service levels of outsourcers. Recent researches show there is a strong need to build industry-specific cost estimation models. In this study, an industry-specific application systems operation cost estimation model is suggested. We reviewed operation cost models of previous researches, and proposed a cost estimation model for security industry. Industry-specific service factors are defined and service levels are determined by Interviews with experts. The proposed model is tested and adjusted with empirical data. The new model shows more accurate prediction than previous general models. Future research will be needed to develop outsourcing cost estimation models for other industries and to refine cost models developed in this study.

• The Journal of Information Systems
• /
• v.19 no.3
• /
• pp.1-12
• /
• 2010

Personality is comprehensive nature of the mood and attitude of people, most clearly revealed in the interaction with other people. This study is a analysis on personality type to information system security and control from financial institute employee. Based on 'The Big Five' personality model, this study develops hypothetical causal relationships of potential organization member's personality and their information system security and control. Research hypotheses are empirically tested with data collected from 901 employees. Results show that employees of high level security mind are the owner of conscientious and emotional stable personality and the employees of high level control mind are the owner of agreeable and emotional stable personality. Therefore the owner of agreeable and stable personality is higher security and control than others.

• Convergence Security Journal
• /
• v.3 no.3
• /
• pp.35-42
• /
• 2003

With the rapid adaption of the network technologies, there has been in continual troubles with network attacking and computer virus which are getting more automatic and intelligent. To solve them, we survey the existing and currently used security solutions, describe the architecture of traditional network management, and propose the model of a MIB-based security management system which has dedicated management information base on each security solution.

• Journal of Korea Society of Industrial Information Systems
• /
• v.4 no.4
• /
• pp.137-142
• /
• 1999

This paper applies role-based access control(RBAC) policy for solving security problems when it will be operated business of many field on the Linux sever environments and designed RBAC＿Linux security systems that it is possible to manage security systems on the Linux environments. In this paper, the RBAC_Linux is security system which is designed for applicable on the Linux enviroment The applying RBAC model is based on RBAC96 model due to Sandhu et al. Therefor, the using designed RBAC_Linux security system on the Linux sever system have the advantage of the following: it can be implemented sever system without modifying its source code, high migration, easy and simple of secure managing.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.28 no.1B
• /
• pp.87-93
• /
• 2003

As Information Security Technology has become rather transparent, wide, and integrated than in part, exclusive, and separated, A necessity of the study about integrating the separated distributed security systems into one module, has grown However, there is no integrated framework which can manage all separate security systems as one integrated one yet. Accordingly, we propose a new policy based network admirustrative model in this paper which can integrate individual security systems and distributed control way into one effectively.

• Journal of Electrical Engineering and information Science
• /
• v.2 no.6
• /
• pp.162-166
• /
• 1997

A message server have two basic functionalities, a server role for processing the processing the user environment as well as an entity role for transferring message to other entity in message system environment. The user who is going to send and receive his important information really wants to keep his own security requests. To satisfy this requirement, message server must be enforced by two seperated security policies- one for message processing security policy under department's computer working environment, the other for send/receive security policy under message system's communication path environment. Proposed access control model gurantees the user's security request by combining constrained server access control and message system access control with multi upper bound properties which come from inheritance attributes of originating user security contexts.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.9 no.10
• /
• pp.4177-4190
• /
• 2015

Current research on Internet of Things (IoT) has primarily addressed the means to enhancing smart resource allocation, automatic network operation, and secure service provisioning. In particular, providing satisfactory security service in IoT systems is indispensable to its mission critical applications. However, limited resources prevent full security coverage at all times. Therefore, these limited resources must be deployed intelligently by considering differences in priorities of targets that require security coverage. In this study, we have developed a new application of Cognitive Radio (CR) technology for IoT systems and provide an appropriate security solution that will enable IoT to be more affordable and applicable than it is currently. To resolve the security-related resource allocation problem, game theory is a suitable and effective tool. Based on the Blotto game model, we propose a new strategic power allocation scheme to ensure secure CR communications. A simulation shows that our proposed scheme can effectively respond to current system conditions and perform more effectively than other existing schemes in dynamically changeable IoT environments.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.22 no.3
• /
• pp.655-658
• /
• 2012

Recently, Gu and Xue proposed an improved secret handshakes scheme with unlinkability by modifying the Huang-Cao scheme. Their proposal not only solves security weakness in the Huang-Cao scheme but also is more efficient than previously proposed secret handshakes schemes. In this letter, we examine the correctness of Gu and Xue's security requirements and show that the adversary model is not correctly defined. We also show that the Gu-Xue scheme is not secure against the attacks under correctly defined adversary model.