• The Transactions of the Korea Information Processing Society
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• v.5 no.4
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• pp.967-974
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• 1998

Access control scheme of the firewall systems protects the systems from threats by using the conventional discretionary access control mechanism. The discretionary access control mechanism is insufficient to control secure information flow on the multievel network. Thus, it is necessary to provide the mandatory access control mechanism to the firewall systems for the multilevel security environment. In this paper, we present a design scheme of the security mechanisms concerning the sensitivity label and the mandatory access control for securely processing the multilevel information.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2006.06a
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• pp.627-630
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• 2006

정보사회에서 인터넷을 기반으로 한 IT관련 기술의 빠른 증가와 더불어 유비쿼터스 환경의 연구 또한 점점 가시화 되어 지고 있다. 이와 더불어, 웹 기반의 분산 컴퓨팅 환경 내에서 관련 정보들의 수집, 보관, 공유, 이동이 활발해지면서, 개인정보의 불법적 유출, 남용에 따른 사생활 침해문제를 해결하기 위한 방안에 관심이 집중되고 있다. 이에 본 논문에서는 유비쿼터스 환경 내에서의 신뢰할 수 있는 개인정보 아키텍처를 구현하기 위한 3단계의 개인정보 보호 메커니즘/통합사용자 인증 메커니즘 CAM(Consolidated Authentication Mechanism), 개인정보정책 메커니즘 PPM(Privacy Policy Mechanism), 개인정보 통제 메커니즘 OCM(Output Control Mechanism)을 제시하였다. 또한 사용자에게 개인정보 사용시 정보의 중요도에 따른 "알림(Notice)" 기능을 웹 브라우저 내 개인정보 적용 기술(P3P)과 연동하여 제공하고, 접근 제어하는 기술적 적용 방안을 소개함으로써 개인 정보의 연동시 오 남용 방지 방안과 시스템 환경 내 실용 가능성(feasibility)을 소개하였다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.23 no.6
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• pp.1001-1006
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• 2013

In this paper, Recently, we describe the distinction mechanism analysis and injurious distinction mechanism performance analysis in order to determine harmfulness of the injurious multimedia which is being rapidly spread in the smart phone and Intelligent Robots. Based on the injurious mechanism distinction technologies, We defined individual injurious characteristics elements of multimedia(images and videos). Also, We analyze harmfulness of the injurious multimedia content by the visual characteristics modeling.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.657-659
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• 2011

Given the security and privacy problems in the application of Radio Frequency Identification(RFID), this paper is proposed a kind of novel security framework, aiming to find a better mechanism in security and privacy problems. This paper reviews the relative work of RFID security mechanisms, then, the overall design scheme and modularized implementation of a secure RFID system based on trusted computing technologies is presented.

• Journal of information and communication convergence engineering
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• v.7 no.3
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• pp.335-339
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• 2009

RFID security and privacy issues have been intensively studied in the research field, the authentication between RFID reader and tag is the fundamental them. Most of the existing authentication protocols draw assumptions on classic primitives. Since tags have small capacities, the security mechanisms which are in use in computer networks and communication are not suitable. In this paper, we compare and analyze recent technical research on the problems of privacy and security. It consists of security mechanism, threats and performance evaluation, etc.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.10
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• pp.2337-2344
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• 2013

Mobile Agent is an autonomous mobility technology is being applied in various fields. In particular, mobile agents execution in the Internet environment through the safe execution of the security must be guaranteed. Also, agent to run the agent, the agent's workload should be distributed. In this paper, a trust model based on the security mechanism of the agent execution is proposed. Proposed mechanism to ensure safe execution of the agent was not considered in existing relative researches for rational agent workload distribution and load balancing to improve throughput was. The proposed trust-based security mechanisms for agents to go through security analysis proved safe execution of the agent.

• The Journal of the Korea Contents Association
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• v.5 no.4
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• pp.160-168
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• 2005

Today, home networking security shows the complicated and various characteristics of requirements for consideration because of the variety of information appliances and share of resources among them. Therefore, security framework to satisfy with security functions is arranged ,regardless of the variety of communication medium and protocols. Thus, we construct security framework for mobile host(or user) to securely control devices in home-network through the variety of suggested mechanism, with security mechanism to be available for future home networking model, and verified the performance of our model.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.4C
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• pp.454-461
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• 2007

The next-generation computer is the ultra-lightweight mobile computer that communicates with peripheral handhold devices and provides dynamically the services appropriate to user. To provide the dynamic services on the ultra-lightweight mobile computer, security problem for user or computer system information should be solved and security mechanism is necessary for the ultra-lightweight mobile computing environment that has battery limit and low performance. In this paper, the security mechanism on the component based middleware for the ultra-lightweight mobile computer was implemented using RC-5 cipher algorithm and SHA-1 authentication algorithm. The security components are dynamically loaded and executed into the component based middleware on the ultra-lightweight mobile computer.

• Convergence Security Journal
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• v.17 no.5
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• pp.49-55
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• 2017

In case of security of IoT-based areas in ICBM industry, the anxiety about safety goes to extremes in public and national safety area, so that the demand for security service related to disaster/safety management is increasing. Like this, as a security service for safety, CCTVs are installed/operated for the purpose of maintenance of public order and crime prevention. Especially, as the recorded images are presented as crucial evidences of crimes, they are rapidly increasing. However, as adverse effects of CCTVs, it is highly possible to unintentionally leak personal information in the process of performing the original purpose, or to violate someone's privacy in case when such technologies are abused. Therefore, it would be necessary to have researches on the multilaterally-combined mechanism for the protection of image privacy.

• International Journal of Computer Science & Network Security
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• v.23 no.8
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• pp.63-76
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• 2023

Identity and access management in cloud computing is one of the leading significant issues that require various security countermeasures to preserve user privacy. An authentication mechanism is a leading solution to authenticate and verify the identities of cloud users while accessing cloud applications. Building a secured and flexible authentication mechanism in a cloud computing platform is challenging. Authentication techniques can be combined with other security techniques such as intrusion detection systems to maintain a verifiable layer of security. In this paper, we provide an interactive, flexible, and reliable multi-factor authentication mechanisms that are primarily based on a proposed Authentication Method Selector (AMS) technique. The basic idea of AMS is to rely on the user's previous authentication information and user behavior which can be embedded with additional authentication methods according to the organization's requirements. In AMS, the administrator has the ability to add the appropriate authentication method based on the requirements of the organization. Based on these requirements, the administrator will activate and initialize the authentication method that has been added to the authentication pool. An intrusion detection component has been added to apply the users' location and users' default web browser feature. The AMS and intrusion detection components provide a security enhancement to increase the accuracy and efficiency of cloud user identity verification.