• 정보보호학회논문지
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• 제1권1호
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• pp.38-46
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• 1991

본 논문에서는 ID 정보를 이용한 키 분배방식을 제안했다. 이 방식에서는 Diffie-Hellman 방식에서 사용하는 공개 화일의 불법 변경 등의 공격에 대한 위험이 제거되는 장점을 가지고 있는 방식이다. 또한, 본 논문에서는 2명 이상의 회의용 키를 생성하는 ID 정보를 이용한 회의용 키 분배방식을 제안하였다. 가입자들은 링 네트워크(ring network)를 구성하고 있다고 가정하였다. 각 가입자들간의 전송정보들은 각 가입자의 ID 정보를 이용하여 인증된다. 제안한 방식의 안정성은 큰 수의 소인수 분해 및 이산대수 계산 문제에 근거한다.

• 사회복지연구
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• 제44권1호
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• pp.165-192
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• 2013

본 연구는 결혼 이주 가정 및 중도입국 청소년들의 민족 정체성 탐색 및 형성과 그 맥락적 조건들을 살펴보았다. 이를 위해 연구자들은 일반 중고등학교에 재학 중인 13-17세 결혼 이주 및 중도 입국 청소년 17명과 심층 인터뷰를 진행했으며, 연구결과 참여자들의 민족 정체성이 다양한 차원으로 구성되어 있음을 확인할 수 있었다. 구체적으로, 청소년들의 민족 정체성을 이해하는 데에는 스스로 규정하기, 규정의 근거, 정체성에 대한 개인의 정서적 반응, 그리고 정체성의 형성 상태 등 다양한 측면들이 중요하게 관여되어 있는 것으로 나타났으며, 청소년들은 자신의 민족 정체성과 관련된 다양한 사회 문화적 경험들을 하고 있음을 알 수 있었다. 이러한 연구 결과를 바탕으로 이주 청소년 연구 및 서비스 제공을 위한 학문적, 실천적 함의를 제시하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권5호
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• pp.2762-2777
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• 2017

A fuzzy identity based signature (FIBS) scheme allows a signer with identity ${\omega}$ to generate a signature which could be verified under identity ${\omega}^{\prime}$ if and only if ${\omega}$ and ${\omega}^{\prime}$ are within a certain distance of each other as judged by some metric. In this paper, we propose an efficient FIBS scheme from lattice assumption, which can resist quantum-computer attacks. Without using the Bonsai Tree technique, we utilize the lattice basis delegation technique to generate the private key, which has the advantage of keeping the lattice dimension invariant. We also prove that our proposed scheme is existentially unforgeable under an adaptive chosen message and identity attack in the random oracle model. Compared with existing scheme, our proposed scheme is much more efficient, especially in terms of communication overhead. Since our FIBS scheme possesses similar error-tolerance property, it can be well applied in post-quantum communication biometric authentication environments, where biometric identifiers such as fingerprints, voice, iris and gait are used in human identification.

• 건축역사연구
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• 제23권1호
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• pp.51-62
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• 2014

Architecture is a product of numerous influences, as shown in the apprenticeships of Kim, Jung-Up and Kim, Swoo-Geun with Le Corbusier's influences. Therefore, its identity is need to be re-defined based on such complex relationships. The rhetorical images of 'the Map of Misreading', as the core of the poetic identification proposed by Harold Bloom's 'the Theory of Influence', provide an efficient way of explaining the relations between architectural apprenticeships and identities. This research is to re-build a new methodology of architectural criticism based on it. The diachronic transformations of the architecture of Seung, Hyo-Sang also had very characteristic 'revisionary ratios' about his precursor Kim, Swoo-Geun. As an antithetic stance of his precursor's final phase, his early days works pursued continuously geometric abstraction and objective images of the architecture of Adolf Loos. However, his recent works are showing the obvious symptoms of regression to his origins. Finally, the architectural identity should be re-conceptualized as a complexity, based on inter-textuality from complex influences. This new architectural identity can be reflected into the modern obsessive identity.

• 중소기업융합학회논문지
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• 제4권4호
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• pp.25-29
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• 2014

Security is a primary concern in group communication, and secure authentication is essential to establishing a secure group communication. Most conventional authentications consist of knowledge-based and token-based methods. One of the token-based methods is a X.509 certificate, which is used under a Public Key Infrastructure (PKI); it is the most well-known authentication system in a distributed network environment. However, it has a well-known weakness, which only proves the belonging of a certificate. PKI cannot assure identity of a person. The conventional knowledge-based and token-based methods do not really provide positive personal identification because they rely on surrogate representations of the person's identity. Therefore, I propose a secure X.509 certificate with biometric information to assure the identity of the person who uses the X.509 certificate in a distributed computing environment.

• 유통과학연구
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• 제19권11호
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• pp.81-90
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• 2021

Purpose: The purpose of this research is that Metaverse platforms' UXBDI can be distinguished among Metaverse platform channel types. Metaverse platform represents a collective term signifying services that include augmented reality, lifelogging, mirror worlds, and virtual worlds. User Experience-Based Design Innovativeness (UXBDI) is characterized by novelty in product design and services that satisfy user experience. This study examined the effect of Metaverse platforms' UXBDI on user-Metaverse platform relationships. Research design, data and methodology: Metaverse platform users were selected as samples, and a marketing research institution known as a panel company conducted the survey. It used multiple regression to test the impact on platform identification and commitment based on a survey of 442 South Korean respondents. Results: The research confirmed that UXBDI sub-dimensional scales of attractiveness and interaction increased user-Metaverse platform identification and commitment. Also, a Metaverse platform identity increased user-Metaverse platform identification in virtual and mirror worlds. Conclusion: This study contributes to multiple academic fields. First, the UXBDI of Metaverse platforms appears to be a key component of ongoing user-Metaverse relationships. Second, UXBDI affects relationships differently based on the Metaverse platform type.

• International Journal of Advanced Culture Technology
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• 제10권2호
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• pp.194-200
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• 2022

Traditionally, postal services that produce and deliver paper-based notices have been the mainstream. The reason is that it has the function of distribution and proof of delivery in the postal delivery system as well as the advantage of information delivery through postal delivery. After all, for the purpose of distribution and proof of delivery, many organizations use paper-based postal notices. However, in recent years, it has been in the spotlight to produce a paper-based postal notice as an electronic notice and deliver information to a mobile device through the Internet. In this paper, we propose a safe interworking method for user identification information required for private institutions to transmit mobile electronic notices. In order for a private institution to accurately deliver an electronic notice to a mobile service subscriber, a means to confirm whether the private institution and the mobile device subscriber are the same person is required. In the mobile electronic notification service, the connecting information provided by the personal identity proofing agency is used as a means of user identification. Connecting information is called a resident registration number on the Internet and is one-way hash information that can only be created by the personal identity proofing agency designated by the government. In order to transmit a mobile electronic notice, it is necessary to share connecting information for the same user identification between the institution that requests the sending of the electronic notice and the institution that processes the sending of the electronic notice. Connecting information is personal information that can uniquely identify a user, and if it is disclosed, damage such as personal information infringement may occur. As such, it is necessary to prevent problems that may arise from misuse and abuse of connecting information as well as increase in the benefits of sending the mobile electronic notice. In this paper, a safe and effective mobile electronic notification service can be performed by suggesting a method for safe interworking of information related to the mobile electronic notification service.

• 한국초등과학교육학회지:초등과학교육
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• 제35권1호
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• pp.39-53
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• 2016

This study aimed to understand students' learning in elementary science classes in terms of participatory perspective. Participatory perspective is based on the participationist views on learning. Based on the participatory perspective, this study used two concepts of participationism: 'the changes of learning on commognition' of Sfard (2007) and 'the identity' of Wenger (1998/2007). Based on these concepts, four episodes of an elementary science class were analyzed. The results showed that students carried out their learning from objective-level learning to meta-level learning. And students defined who they are by identifying and negotiating scientific meaning during the learning. These results showed students become members of science community through their participations in science class.

• Genomics & Informatics
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• 제14권1호
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• pp.12-19
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• 2016

Neuropeptides produced from prohormones by selective action of endopeptidases are vital signaling molecules, playing a critical role in a variety of physiological processes, such as addiction, depression, pain, and circadian rhythms. Neuropeptides bind to post-synaptic receptors and elicit cellular effects like classical neurotransmitters. While each neuropeptide could have its own biological function, mass spectrometry (MS) allows for the identification of the precise molecular forms of each peptide without a priori knowledge of the peptide identity and for the quantitation of neuropeptides in different conditions of the samples. MS-based neuropeptidomics approaches have been applied to various animal models and conditions to characterize and quantify novel neuropeptides, as well as known neuropeptides, advancing our understanding of nervous system function over the past decade. Here, we will present an overview of neuropeptides and MS-based neuropeptidomic strategies for the identification and quantitation of neuropeptides.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제9권12호
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• pp.315-320
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• 2020

신원인증은 오래전부터 사회에서 개인을 식별하고 그에 맞는 서비스 등을 제공하기 위해 사용되던 중요한 기술이다. 인터넷 인프라의 발전으로 사회의 많은 부분이 온라인 영역으로 전환되며 신원인증 기술 또한 온라인으로 확장되었다. 하지만 여전히 신원인증 기술은 정부와 같이 신뢰하는 제3의 기관에 전적으로 의존하고 있다는 한계가 있다. 중앙화된 신원관리체계는 서로 다른 신원관리체계를 운용하는 기관 사이의 신원인증 과정을 매우 복잡하게 만들고 비용·시간적으로도 매우 비효율적으로 만들고 있다. 특히 2020년 코로나 바이러스로 인한 마스크 품귀 사태에서 사용된 중복구매 방지 시스템의 구축과정에서 중앙화된 신원관리체계의 한계가 여실히 드러났다. 분산신원증명은 사용자 스스로 자신의 신원정보를 관리하는 방법으로 최근에는 블록체인기술을 사용한 분산신원증명 기술이 다수 제안되고 있다. 본 논문에서는 기존의 중앙화된 신원관리체계의 한계를 분석하고 차후 코로나 바이러스와 같은 국가적인 비상상황에서 사용가능한 분산신원증명 시스템을 제안한다.