그룹 환경의 사용자 인증 및 키 교환 서비스 프로토콜 연구

• 영문명: A Study on the User Authentication and Key Exchange Service for Group Environment
• 발행기관: 한국IT서비스학회
• 저자명: 변진욱(Jin-Wook Byun) 이수미(Su-Mi Lee) 이동훈(Dong-Hoon Lee)
• 간행물 정보: 『한국IT서비스학회지』한국IT서비스학회지 제8권 제2호, 117~136쪽, 전체 20쪽
• 주제분류: 경제경영 > 경영학
• 파일형태: PDF
• 발행일자: 2009.06.30

영문 초록

Over the years a password has been used as a popular authentication method between a client and a server because of its easy-to-memorize property. But, most password-based authentication services have focused on a same password authentication scheme which provides an authentication and key exchange between a client and a server with the same password. With rapid change of communication environments in the fields such as mobile networks, home net-working, etc., the end-to-end security allowing users to hold different password is considered as one of main concerns. In this paper, we consider a new authentication service of how each client with different own password is able to authenticate each other, which is a quite new service paradigm among the existing services. This new service can be used in the current or next generation network environment where a mobile user in cell A wants to establish a secure end-to-end channel with users in cell B, C, and D using only their memorable passwords. This end-to-end security service minimizes the interferences from the operator controlled by network components. To achieve this end-to-end security, we propose an authentication and key exchange service for group users in different realm, and analyze its security in a formal way. We also discuss a generic construction with the existing authentication schemes.

키워드

Authentication Different Password Authentication Group Service