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강창구,정란,이상현,박태원,Kang, Chang-Gu,Chung, Lan,Lee, Sang-Hyun,Park, Tae-Won 대한건축학회 2011 대한건축학회논문집 Vol.27 No.2
Nowadays, remodeling cases for some apartment like Hyundai through the support of government are reported. Conventionally, balcony and aisle are extended for additional private area or balcony which is supported by new frame is extended. In extension work at site, dowel bar is conventionally inserted in old concrete slab for connection with old and new slab, however, an examination for structural safety is rarely performed prior to construction, if ever, vertical load is only considered for structural analysis. When conventionally connected structures are exposed to earthquake, the old and new structures have individual earthquake behavior with different mode, which may lead the elimination of resistance to earthquake in new structures. As of this reason, new detailing connection system which can have light weight and sufficient ductility performance is developed for application to domestic extension works. The purpose of this research is to develop a detailing connection system for joint members which are designed for additional extension work of plan, providing modified resistance to earthquake.
강창구(Kang Chang Goo),최용락(Choi Yong Rak) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.8
In this paper, we propose two authentication exchange schemes which combine public-key-based mutual authentication with a Diffie-Hellman key derivation exchange. The security of key exchange of the proposed schemes depends on the discrete logarithm problem. The security of the entity authentication depends on that of the signature mechanism to be used in the proposed scheme. In comparison with the Kerberos, X.509 exchanges, and ISO 3-way authentication protocol, the proposed schemes are not only simple and efficient, but also are resistant to the full range of replay and interception attacks.
통합 정보 모델을 이용한 접근제어 메커니즘 설계 및 구현
강창구(Kang Chang Goo),박진호(Park Jin Ho),최용락(Choi Yong Rak) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.9
This paper presents a design of an access control mechanism that can resolves the complicated problems of access control requirements in modern information communication applications. In this paper, we proposed an integrated information model which can satisfy the combined goals of confidentiality, integrity and availability of any resource. We defined an integrated information model from the view points of identity-based, rule-based and role-based policy and implemented six access control operations. The proposed integrated information model can protect to unauthorized access to any resource based on the multilevel security policies of security label, integrity level, role and ownershop.