• Journal of the Korea Institute of Information and Communication Engineering
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• v.7 no.5
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• pp.986-992
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• 2003

In this paper we challenge the user Authentication using Kerberos V5 authentication protocol in WPKI environment. this paper is the security structure that defined in a WAP forum and security and watches all kinds of password related technology related to the existing authentication system. It looks up weakness point on security with a p개blem on the design that uses wireless public key-based structur and transmission hierarchical security back of a WAP forum, and a server-client holds for user authentication of an application level all and all, and it provides one counterproposal. Therefore, We offer authentication way solution that connected X.509 V3 with using WIM for complement an authentication protocol Kerberos V5 and its disadvantages.

• Review of KIISC
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• v.7 no.3
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• pp.131-142
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• 1997

본 고에서는 현재 분산환경에서의 인증 메커니즘으로 널리 고려되고 있는 Kerberos 인증 방식의 초기 버전인 Kerberos V.4 와 개선된 버전인 V.5 그리고 공개키 암호를 도입하여 Kerberos 를 개선한 Yaksha 인증 메카니즘을 소개하고자 한다. 또한 분산 환경에서의 대표적인 두 방식을 비교 분석하여 보았다.

• Proceedings of the Korea Multimedia Society Conference
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• 2003.11a
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• pp.86-90
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• 2003

본 논문은 WPKI 환경에서 KXW(Kerberos V5, X.509 V3, WIM) 인증 메커니즘을 설계한다. 인증 프로토콜로는 Kerberos V5을 이용한 사용자 인증 문제를 해결하며, WAP Forum에서 정의한 보안구조 및 요소, 기존 인증 시스템과 관련된 각종 암호 기술을 살펴본 후, WPKI 기반 구조와 전송 계층 보안등을 이용하여 응용 계층에서의 사용자 인증을 위해 서버 클라이언트가 지니는 설계상의 문제점과 E2E 보안상 취약점을 찾아 대안을 제공한다. 인증 프로토콜인 Kerberos V5와 그 단점을 보완 할 수 있는 무선용 X.509 V3을 결합한 후, 보안성이 우수한 WIM을 인증서 저장 매체로 활용한 올바른 인증 방법 해결책을 제시한다.

• Proceedings of the IEEK Conference
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• 2004.08c
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• pp.519-523
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• 2004

In this paper we challenge the user Authentication using KerberosV5 authentication protocol in WPKI environment. This paper is the security structure that defined in a WAP forum and security and watches all kinds of password related technology related to the existing authentication system. It looks up weakness point on security with a problem on the design that uses wireless public key based structure and transmission hierarchical security back of a WAP forum, and a server client holds for user authentication of an application layer all and all, and it provides one counterproposal. Therefore, We offer authentication way solution that connected X.509 V3 with using WIM for complement an authentication protocol KerberosV5 and its disadvantages.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11b
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• pp.1023-1026
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• 2002

The demand for Wireless LAN (WLAN) access to use their network and the Internet is surged dramatically over the past year. Since WLAN provides users' access from anywhere in the workplace without having to plug in, it therefore leads the WLAN market to grow steadily. Unfortunately, the first WLAN implementation designed primarily for home networking did little to address these security issues. Moreover, although the 802.11b standard published by IEEE in 1999 improved WLAN connections LAN-equivalent speed and security from the 802.11 standard. However, there still are several flaws such as the weaknesses in the Authentication and WEP encryption schemes in the IEEE 802.11 WLAN standard. In this paper, we propose WLAN architecture for providing the strong centralized authentication, encryption, and dynamic key distribution on a WLAN. Additionally, this proposed architecture is able to support roaming users and is flexible and extensible to future developments in the network security.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2004.05b
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• pp.713-716
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• 2004

In this paper we challenge the user Authentication using Kerberos V5 authentication protocol in Ad-hoc network environment. Ad-hoc network is a collection of wireless mobile nodes without the support of a stationary infrastructure. and DSR routing protocol, which is one of famous mobile ad-hoc routing protocols, has the following network path problem. this paper is the security structure that defined in a mobile network and security and watches all kinds of password related technology related to the existing authentication system. It looks up weakness point on security with a problem on the design that uses Ad-hoc based structure and transmission hierarchical security back of a mobile network, and a server-client holds for user authentication of an application level all and all, and it provides one counterproposal.