• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2004.05b
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• pp.733-738
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• 2004

In a distributed network system, Kerberos certification mechanism is operated by a user in local area on the premise reliability of Kerberos server in another area. But it has a demerit. If security information of certification server between Kerberos servers is released, Kerberos server can not guarantee the reliability. To solve this problem, the proposed mechanism prevents password speculating attack by increasing the random of password certifier through use of distributed password in stead of certification center and certification which was presented by existing Kerberos mechanism. Besides, it used password based certification method which uses secret distributed technique

• Aerospace Engineering and Technology
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• v.2 no.1
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• pp.205-212
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• 2003

Reliability means that certain parts or systems maintain its best qualities and functionalities within certain periods and is the prospective quality which the safe life of products is indicated by quantitative values and the highest level of reliability of the products is required to attain in the highly competitive business world. In Korea, there have been a significant growth in the field of reliability and government promotes the "Reliability Improvement Project" to establish infrastructure to conduct reliability assessment and certification. The importance and necessity is well recognized among researchers and engineers working in the research institutions and the manufacturing industries and many industries invest a great amount of money and effort in improving the reliability of its products. In this paper, the promotional status of reliability improvement project and necessity of establishment of the reliability certification system for aerospace field is presented.

• Journal of Korean Society for Quality Management
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• v.49 no.2
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• pp.113-125
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• 2021

Purpose: This study focused on reality and quality improvement of aviation security equipment performance certification system. Methods: For this propose, we analyzed aviation security equipment performance certification system related legislations. Using analyzed data, we suggested advancement plan of aviation security equipment performance certification system. Results: In results, South Korea has been implementing aviation security performance certification system since October 2018. Parts for improvement of system are mutual certification with major countries that operate aviation security equipment performance certification systems, the spread of the defense industry's system, development of similar substances for handling explosives, and introduction of preliminary inspections. Conclusion: The research result could be used as a basic data for upgrading Korea's aviation security performance certification system.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.23 no.6
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• pp.1231-1238
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• 2013

In the background of rapidly increasing domestic cloud service demand, worries about security and privacy incidents can hinder the promotion of cloud service industry. Thus, it is crucial that the independent 3rd party assures the reliability for using the cloud service. This paper compares several external and internal cloud service certification cases, for example CSA certification, FedRAMP certification, KCSA certification, and concludes that insufficient security and privacy controls are prevailing. As a consequence, several enhanced countermeasures by using ISO/IEC 27017, KISA's ISMS considering manageability and expertise are proposed in the cloud service certification system.

• Proceedings of the Korean Society for Quality Management Conference
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• 2004.04a
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• pp.272-277
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• 2004

Recently reliability Improvement and certification are considered as important issues by world-wide leading and highly qualified companies in advanced countries. In Korea, from a few years ago, the policy for reliability certification newly has been driven to improve product competitiveness in part and material industry. As yet the reliability certification is local and domestic, it is necessary to develop local certification system to global certification system. Reliability certification system is composed of accreditation body, testing laboratory and reliability assurance. In this paper, we review the reliability certification system and its application in Korea and the current research trends in advanced countries. Finally we propose some suggestions for the eliability certification system to be an international standard.

• Journal of Aerospace System Engineering
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• v.17 no.6
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• pp.108-117
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• 2023

Thus far, a mission software component of the KT-1 military fixed-wing aircraft for overseas export has been developed through international joint development with foreign companies. The reliability of the software component could be certified by complying with the development environment and procedures of foreign companies based on DO-178B. However, recently, DO-178C certification is required for overseas exports, and reliability tests to comply with the weapon system software development guidelines are required for domestic military forces. In this paper, we describe the problems in obtaining domestic airworthiness certification in the international joint development of a previously developed KT-1 export-typed aircraft system integration project. To this end, we find a solution to comply with both DO-178C and the Weapon System Software Development and Management Manual and provide the optimal software reliability test method.

• The KIPS Transactions:PartD
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• v.11D no.2
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• pp.387-396
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• 2004

Qualify of software development project is very important in complex and large domestic software market. Software development companies are eager to Bet some quality certification such as CMM certification. However, reliability and effectiveness of CMM certification tomes into question. This study explores the relationships between software project Quality (and some organizational performance) and organization's CMM certification. The result shows no strong relationships between project quality and CMM certification. This may imply that an incremental improvement of project process plays a more important role than certification process itself.

• Proceedings of the Safety Management and Science Conference
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• 2012.04a
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• pp.535-545
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• 2012

국내의 많은 기업들은 품질경영시스템인 ISO 9000 시리즈와 식스시그마 등 기업의 품질 및 제품에 대한 품질을 높이기 위해 품질관리, 품질경영에 많은 시간과 비용을 들여왔다. 하지만 품질인증제도와는 달리 제품의 신뢰성에 관한 경영시스템인증을 받으려고 하는 기업은 거의 없는 실정이다. 부품 소재나 제품의 신뢰성을 확보하기 위한 방안으로써 신뢰성경영시스템에 대한 인증은 필수적이라 할 수 있다. 신뢰성 관련 기법들을 표준화하고, 효율적인 경영시스템을 도입하여 운영하고, 여기에 세계적으로 통용되는 기술체계를 도입하여 기업의 신뢰성경영시스템을 발전시킨다면 우리산업이 당면한 수출 경쟁력 확보 등의 현안문제 해결에도 도움이 될 수 있다. 본 연구에서는 신뢰성 경영시스템 인증제도 수립에 있어 국제 표준인 신뢰성경영시스템 IEC 60300에 대해 소개하고, 신뢰성 경영시스템 평가방법을 활용한 MIR기법과 AHP기법을 분석 비교하고, 개선방향을 제시하고자 한다.

• Aerospace Engineering and Technology
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• v.3 no.2
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• pp.91-97
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• 2004

In this paper, we conducted basic study on the reliability management that is a key factor to develop highly-reliable launch vehicles, and proposed the strategy for reliability management that can be applied to the KSLV program. Based on the analysis of international launch vehicles data, this paper also presented the reliability target that is essential for Korea's entering into the international commercial market.

• Informatization Policy
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• v.18 no.1
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• pp.24-44
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• 2011

The evolution of cloud computing over the past few years is potentially one of the major advances in information technology. However, if cloud computing is to achieve its potential, there needs to be a clear identification and understanding of the various issues involved, both from the perspectives of the providers and the consumers of the technology. While a lot of research is currently taking place in the technology itself, there is an equally urgent need for understanding the business-related issues surrounding cloud computing service. As more and more information on individuals and companies are placed in the cloud service, concerns are beginning to grow about just how safe and reliable an environment it is. For successful implementation of cloud services, it is necessary to establish the certification systems to ensure the safety and reliability of cloud services. This paper provides a safe and reliable framework for cloud service certification systems. In order to develop it, the critical issues related to service quality and certification of cloud services have been identified and the systematic framework for certification systems of cloud services and service provider domains have been developed. An evaluation method for the developed certification systems is also proposed.