• Proceedings of the KAIS Fall Conference
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• 2010.05a
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• pp.408-411
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• 2010

보안관리가 진화하고 있다. 보안의 중요성이 강조되면서 도입된 수많은 보안 솔루션은 관리의 어려움을 증가시키고 있고, 각기 다른 장비가 쏟아내는 수많은 정보들로 효율적인 전사적 보안 체계 마련의 필요성이 대두되고 있기 때문이다. 국내에서는 ESM(Enterprise Security Management)이 보안관리를 대표했지만, 이를 더욱 고도화해야 한다는 요구가 증가하고 있다. 본 연구에서는 기업보안관리(ESM) 제품의 질적인 면을 평가하고 품질수준을 파악하여 개선방향을 도출함으로써 품질향상을 지원할 수 있는 보안성 평가모델과 시험 방법론에 대해서 개발하였다.

• Convergence Security Journal
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• v.18 no.2
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• pp.49-58
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• 2018

As the demand for Internet of Things(IoT) increases, the need for the security of IoT devices is increasing steadily. It is difficult to apply the conventional security theory to IoT devices because IoT devices are subject to be constrained by some factors such as hardware, processor, and energy. Nowadays we have several security guidelines and related documents on IoT device. Most of them, however, do not consider the characteristics of specific IoT devices. Since they describes the security issues comprehensively, it is not easy to explain the specific security level reflecting each characteristics of IoT devices. In addition, most existing guidelines and related documents are described in view of developers and service proposers, and thus ordinary users are not able to assess whether a specific IoT device can protect their information securely or not. We propose an security evaluation model, based on the existing guidelines and related documents, for more specific IoT devices and prove that this approach is more convenient to ordinary users by creating checklists for the smart watch.

• The KIPS Transactions:PartC
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• v.9C no.3
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• pp.337-342
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• 2002

In this paper, we proposed the ISL for evaluating the security level of Intranet. This method is composed of two parts First, Hacking Scenarios are the hacking stories by hacking/hackers levels. Second, Network Model is composed of the zone and intrusion paths. Our method is very active and practical. We divide ISL into five levels ISL1∼ISL5. Among the levels, ISL5 is the highest security level. Main purpose of this paper is to promote the security of Intranet. In this paper, we designed and analyzed the test-bed for ISL3.

• The Journal of Society for e-Business Studies
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• v.16 no.4
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• pp.87-96
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• 2011

The importance of the security management system for the aviation infrastructure cannot be overemphasized. What is especially important on the security management system for it is the assessment that is detaild and systematic. This article presents a framework based on a Hanulcha-type security management system model for a Information security of the Aviation infrastructure. This system checks, estimates and analyzes the goal of security with effect, especially in case of the security-accident on the aviation infrastructure because this system model gives the integrated security assessment method.

• Review of KIISC
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• v.11 no.6
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• pp.1-11
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• 2001

정보보안 분야가 성숙해짐에 따라 다양한 평가방법론들이 개발되어 적용되고 있다. 그러한 방법론들 중에서 본고에서는 품질 보증의 수단으로써 정보보안 제품/시스템의 개발기관의 보안공학 수행 능력을 평가하기 위한 SSE-CMM에 대하여 살펴본다. SSE-CMM의 개념적 기초가 되는 보안공학에 대하여 먼저 살펴보고, 보안공학 수행 능력의 수준을 평가하기 위한 평가 기준의 체계와 구성과 함께, SSE-CMM을 이용하여 평가를 수행하기 위한 평가방법론을 구체적으로 제시하고 있는 SSAM에 대하여도 살펴본다. SSE-CMM이 근거하고 있는 보안공학은 효과적인 정보보안을 도모하기 위한 개념적 틀이라는 점을 몇 가지 정보보안관리 지침들과의 비교를 통하여 논의하였다. SSE-CMM은 현재 ISO 표준으로 상정되어 표준화가 진행 중이다. 정보보안 분야의 여러 평가방법론들과 더불어 보다 다양한 관점에서 정보보안의 효과성을 보증해주는 도구로 활용될 것이다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.23 no.5
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• pp.873-883
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• 2013

Security vulnerability quantification is the method that identify potential vulnerabilities by scoring vulnerabilities themselves and their countermeasures. However, due to the structural feature of smart grid system, it is difficult to apply existing security threat evaluation schemes. In this paper, we propose a network model to evaluate smartgrid security threat for AMI and derive attack scenarios. Additionally, we show that the result of security threat evaluation for proposed network model and attack scenario by applying MTTC scheme.

• Journal of Digital Convergence
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• v.15 no.6
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• pp.219-227
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• 2017

Network access control should be able to effectively block security threats to the IT infrastructure, such as unauthorized access of unauthorized users and terminals, and illegal access of employees to internal servers. From this perspective, it is necessary to build metrics based on relevant standards to ensure that security is being met. Therefore, it is necessary to organize the method for security evaluation of NAC according to the related standards. Therefore, this study builds a model that combines the security evaluation part of ISO / IEC 15408 (CC: Common Criteria) and ISO 25000 series to develop security metric of network access control system. For this purpose, we analyzed the quality requirements of the network access control system and developed the convergence evaluation metric for security of the two international standards. It can be applied to standardization of evaluation method for network access control system in the future by constructing evaluation model of security quality level of network access control system.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10a
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• pp.631-633
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• 2003

시스템의 안전성을 평가하기 위해 프롤로그 기반의 명세 언어인 SPSL을 사용하여 보안 모델을 정형적으로 설계하였다. 보안 모델은 시스템의 3가지 컴포넌트, 시스템 보안 상태(system security states), 접근 통제 규칙(access control rules), 그리고 보안 기준(security criteria)으로 구성된다. 본 논문에서는 NTFS의 다중 사용 권한에 대한 보안 모델을 만들어서 3가지 컴포넌트를 명세하고 안전성 문제 해결 도구인 SPR［1］을 이용하여 검증하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10a
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• pp.823-825
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• 2003

보안 시스템에 대해서 고등급 평가를 받기 위해서는 정형적 방법론을 사용하여, 보안 모델을 설계하고, 보안 속성을 정확히 기술해야만 한다. 본 논문에서는 정형적 설계 방법을 통해 보안모델을 설계하고 검증하기 위한, SPR(Safety Problem Resolver) 정형검증도구의 검증방법 및 기능에 대해 소개하고자 한다.

• Journal of Internet Computing and Services
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• v.25 no.1
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• pp.167-176
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• 2024

Chatbot services are used in various fields in connection with AI services. Security research on AI is also in its infancy, but research on practical security in the service implementation stage using it is more insufficient. This paper analyzes the security requirements for chatbot services linked to AI services. First, the paper analyzes the recently published papers and articles on AI security. A general implementation model is established by investigating chatbot services provided in the market. The implementation model includes five components including a chatbot management system and an AI engine Based on the established model, the protection assets and threats specialized in Chatbot services are summarized. Threats are organized around threats specialized in chatbot services through a survey of chatbot service managers in operation. Ten major threats were drawn. It derived the necessary security areas to cope with the organized threats and analyzed the necessary security requirements for each area. This will be used as a security evaluation criterion in the process of reviewing and improving the security level of chatbot service.