• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2003.12a
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• pp.330-339
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• 2003

본 연구에서는 개인용 공인인증서 활성화 방안에 대한 정책적 제안을 제시하였다. 현황 및 문제점 파악을 위하여 2003년도 정부발간자료, 통계, 과학기술정보통신위원회 국정감사 제출자료 등에서 직접 데이터를 수집하였다. 개인용 전자서명의 현황 및 문제점은 법·제도에 따른 시장 분석과 전자거래·전자문서 유통에 있어서 개인용 공인인증서의 시장독점 경향 등을 정리하였다. 이를 바탕으로 본 논문에서 제시된 활성화 방안의 초점은 전자문서 유통과 공인인증 체계의 시장 구조적 문제점 해소, 상호연동 및 유료화에 따르는 부작용 최소화에 두었다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.05a
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• pp.196-197
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• 2021

본 논문에서는 오픈마켓 개인 판매자의 개인정보 취급에 있어 개인정보 보호 강화를 위해 판매자 싸이트 로그인 시 2 차 인증 필요성에 대한 법적 준거성을 분석하고 이에 대한 기술적 방안을 제시한다.

• Journal of the Korea Society of Computer and Information
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• v.16 no.4
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• pp.93-99
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• 2011

Recently, the development of internet technology makes user's personal data used by being saved in USB. But there is a critical issue that personal data can be exposed with malicious purpose because that personal data doesn't need to be certificate to use. This paper proposes USB security framework to prevent a duplicate use of personal data for protecting the data which in USB. The proposed USB security framework performs certification process of user with additional 4bite of user's identification data and usage choice of USB security token before certification data when the framework uses USB security product in different network. It makes communication overhead and service delay increased. As a result of the experiment, packet certification delay time is more increased by average 7.6% in the proposed USB security framework than simple USB driver and USB Token, and procedure rate of certification server on the number of USB is also increased by average 9.8%.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.1
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• pp.634-640
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• 2020

The information security management system (ISMS) and the personal information management system (PIMS) have been integrated into a personal information & information security management system (ISMS-P) certification scheme in response to requests to reduce the time and cost to prepare certification schemes. Integration of the certification system has made it possible for the system operator to gain the advantage of easy management of the ISMS-P certification system, and the certification target organization can enjoy the advantage of easy acquisition and maintenance of certification. However, ambiguity in the application criteria of the target organization, and ambiguity in the certification criteria control items require the target organization to operate an excessive management system, and the legal basis to be applied to the certification target organization is ambiguous. In order to improve these problems, this paper uses case studies to identify the types of certification bodies that apply the certification criteria, and to change the control items applied during certification audits based on the types of certification bodies. Institutions that wish to obtain only ISMS certification have proposed three solutions, excluding controls covered by the ISMS-P. This paper suggests ways to operate an efficient certification system, and can be used as a basis for improving problems in the ISMS-P certification system.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.66-74
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• 2021

With the development of the Internet, user authentication technology that proves me online is improving. Existing ID methods pose a threat of personal information leakage if the service provider manages personal information and security is weak, and the information subject is to the service provider. In this study, as online identification technology develops, we propose a DID-based self-authentication model to prevent the threat of leakage of personal information from a centralized format and strengthen sovereignty. The proposed model allows users to directly manage personal information and strengthen their sovereignty over information topics through VC issued by the issuing agency. As a research method, a self-authentication model that guarantees security and integrity is presented using a decentralized identifier method based on distributed ledger technology, and the security of the attack method is analyzed. Because it authenticates through DID Auth using public key encryption algorithms, it is safe from sniffing, man in the middle attack, and the proposed model can replace real identity card.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.17 no.2
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• pp.139-144
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• 2007

Due to the increasing use of Internet and spread of ubiquitous environment the security of private information became an important issue. For this reason, many suggestions have been made in order to protect the privacy of users. In the study of authentication system using a smart card which is one of the methods for protecting private information, the main idea is to offer user anonymity. In 2004, Das et al. suggested an authentication system that guarantees anonymity by using a dynamic ID for the first time. However, this scheme couldn't guarantee complete anonymity as the identity of the user became revealed at log-in phase. In 2005, Chien at al. suggested a authentication system that guarantees anonymity, but this was only safe to the outsider(attacker). In this paper, we propose a scheme that enables the mutual authentication between the user and the sewer by using a smart card. For the protection of the user privacy, we suggest an efficient user authentication system that guarantees perfect anonymity to both the outsider and remote server.

• Convergence Security Journal
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• v.6 no.1
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• pp.83-90
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• 2006

Recently, the security for RFID/USN environment is divided into network security and RFID security. The authentication protocol design for RFID security is studied to protect user privacy in RFID system. However, the study of efficient authentication protocol for RFID system is not satisfy a security for low-cost RFID tag and user privacy. Therefore, this paper proposes a secure matrix-based RFID authentication protocol that decrease communication overhead and computation. In result, the Matrix-based RFID authentication protocol is an effective authentication protocol compare with HB and $HB^+$ in traffic analysis attack and trace location attack.

• Convergence Security Journal
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• v.11 no.6
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• pp.45-51
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• 2011

Certificate security oriented cyber certificate is important tool for the purpose of offering user-authentication service based on on-line system. In the paper, we analyzed management implement which could make the efficient use of certificate security oriented cyber terror response. This algorithm called SOL(Security Oriented Language) will make efficient use of the service about authentication consisting of the basis in the age of information through efficient management and partial use of each certificates. Especially, SOL could be used efficiently by grafting a small group of on-line system which is operated with particular purposes.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.921-924
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• 2005

지문인식 방법은 사람이 갖는 유일한 정보인 지문을 이용하여 문자 기반 인증 방법이 갖는 문제점을 해결할 수 있는 생체 인식 사용자 인증 방법이다. 많은 인식 방법들이 연구, 개발되었고 신뢰할 수 있는 인증 방법을 제공하기 위한 시도로 각종 방법들이 제안되고 또한 사용되고 있는데, 기존의 지문 인식 방법은 산술 연산과 수학적 접근을 주류로 하고 있기 때문에 부동 소수점 연산 프로세서(FPU)가 필요하다는 단점을 가지고 있다. 임베디드 시스템에서는 부동 소수점 연산 프로세서가 지원이 되지 않아 기존의 알고리즘들을 임베디드 시스템에 그대로 적용하기에는 문제가 있다. 따라서 본 논문에서는 이러한 단점을 극복하기 위해 기본적인 이미지 처리 및 특징점 추출 후, 수학적 연산을 최대한 배제한 알고리즘을 적용하여 인증을 수행하는 지문인식 방법을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05c
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• pp.1973-1976
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• 2003

교육행정업무에 대한 전자적인 거래 흑은 각종 문서의 안전한 송 수신과 사용자의 신원을 확인하여 안전한 행정업무 수행이 가능하도록 하기 위해서는 보안을 갖춘 인증체제를 도입하였다. 본 논문에서는 PKI 기반 암호기술을 이용하여 전자인증기반의 교육행정정보 시스템을 설계하였다. 세부거래에 대한 알고리즘은 비밀키, 키 친환 공개키, 개인 키 및 서명용 공개키 개인 키를 사용하였고 또 시스템 지원 기관의 서버가 사용자의 신원을 확인할 수 있어서 업무담당자 및 관련자의 안전한 업무수행 보증과 국민에게 교육행정정보 및 민원서비스를 안전하게 제공하는 교육행정정보 시스템을 설계하였다. 제안된 시스템의 인증모듈은 인증, 기밀성, 무결성, 부인봉쇄 서비스 통의 보안기능을 제공하도록 설계되었다.