• Title/Summary/Keyword: Information security program

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A Study on safe transmission technique that IPsec of MIPv6 base (MIPv6 기반 IPsec을 이용한 보안전송 기법에 관한 연구)

  • Moon, In-Tack;Ryu, Dong-Ju;No, Bong-Nam
    • Annual Conference of KIPS
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    • 2003.11c
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    • pp.2013-2016
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    • 2003
  • 최근 무선인터넷의 활발한 보급화에 더불어 이동성 단말을 이용한 전자상거래 등이 활발하게 이루어짐에 따라서 개인 데이터 보호 및 안전한 통신을 보장 받으려는 모바일 사용자들의 요구가 급속히 증가하고 있다. 이는 무선매체의 공개성에 따른 보안침해의 용이성과 단말이 이동함에 따른 보안 체계 구축의 복잡성에 기인한다. 이러한 이유로 최근 이동성 단말의 통신에서 보안이 중요한 영역으로 인식되고 있다. 따라서 본 논문에서는 이러한 모바일 환경 특히 향후 전개될 MIPv6(Mobile Internet Protocol version 6) 환경에서의 안전한 데이터 전송을 위해 IP 계층 보안 프로토콜인 IPsec(Internet Protocol security)을 이용한 이동 단말의 안전한 데이터 전송을 테스트하고 향후 MIPv6 에서의 보안성 향상을 위한 방안들을 모색해 보고자 한다.

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A Study on the Smart Medical Equipment Management Program (Secure-MEMP) Method Considering Security (보안성을 고려한 스마트 의료기기 관리(Secure-MEMP) 방법에 관한 연구)

  • Kim, Dong-Won
    • Convergence Security Journal
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    • v.21 no.1
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    • pp.63-72
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    • 2021
  • The hospital biomedical engineering team is responsible for establishing and regulating the Medical Device Management Program (MEMP) to ensure that medical devices are safe and reliable. As technology advances, medical devices such as artificial intelligence and precision medicine are developing into a form that allows connection between objects anytime, anywhere, and as various technologies converge, internal and external security threats continue to increase. In this paper, we present a study of the Medical Device Management Program (Secure-MEMP) method, considering that the security threat of medical devices continues to increase due to advances in technology.

Security policy Model and description language for Secure Operating Systems (보안운영체제를 위한 보안정책모델 및 기술언어)

  • Cho Joo-Bong;Kim Jung-Sun;Kim Min-Soo;Noh Bong-Nam
    • Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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    • 2006.06a
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    • pp.223-227
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    • 2006
  • SELinux와 같은 보안 운영체제들은 정교한 접근통제 기능을 제공하고 있으나 타입(Type)과 매크로 등과 같은 정책 설정 구성요소가 많아지게 됨으로서, 운영체제에 대한 지식이 부족한 정책관리자가 정책을 설정하고 적용하기 어렵다. 이러한 정책기술 및 적용의 복잡성은 SELinux와 같은 훌륭한 보안운영체제의 범용화의 걸림돌이 되고 있다. 따라서 본 논문에서는 이러한 정책기술 및 정책 설정의 문제점을 해결하기 위해 정책관리자들이 사용하기 쉬운 보안 정책모델과 기술언어를 제안하고 SELinux의 정책과 성능을 비교하여 제안한 방법이 개선되었음을 보인다.

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The Dilemma of Parameterizing Propagation Time in Blockchain P2P Network

  • Rahmadika, Sandi;Noh, Siwan;Lee, Kyeongmo;Kweka, Bruno Joachim;Rhee, Kyung-Hyune
    • Journal of Information Processing Systems
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    • v.16 no.3
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    • pp.699-717
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    • 2020
  • Propagation time on permissionless blockchain plays a significant role in terms of stability and performance in the decentralized systems. A large number of activities are disseminated to the whole nodes in the decentralized peer-to-peer network, thus causing propagation delay. The stability of the system is our concern in the first place. The propagation delay opens up opportunities for attackers to apply their protocol. Either by accelerating or decelerating the propagation time directly without proper calculation, it brings numerous negative impacts to the entire blockchain system. In this paper, we thoroughly review and elaborate on several parameters related to the propagation time in such a system. We describe our findings in terms of data communication, transaction propagation, and the possibility of an interference attack that caused an extra propagation time. Furthermore, we present the influence of block size, consensus, and blockchain scalability, including the relation of parameters. In the last session, we remark several points associated with the propagation time and use cases to avoid dilemmas in the light of the experiments and literary works.

CSfC Network Security Architecture Analysis for the Assurance of Commercial Security Solutions in Defense Area (국방 상용보안제품 도입을 위한 CSfC(Commercial Solutions for Classified Program) 네트워크 보안 아키텍처 분석)

  • Lee, Yong-joon;Park, Se-joon;Park, Yeon-chool
    • Journal of Internet Computing and Services
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    • v.22 no.6
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    • pp.91-97
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    • 2021
  • The United States is responding to evolving cyberattacks through the Commercial Solutions for Classified Program (CSfC). Authorized safety evaluation and certification are being carried out so that US government agencies can quickly introduce civilian commercial security products into the national pavilion. Commercial security products registered in the CSfC process can be used by defense agencies through a rapid approval process. Defense agencies approve commercial security products without duplicate evaluation. Approved security products can reduce the time, cost, and cost of the approval process required to implement the defense information system. In this study, security control for 4 types of network security architecture MSC (Multi-Site Connectivity), MA (Mobile Access), Campus WLAN, and DAR (Data at Rest) proposed by the US National Security Agency (NSA) for introduction to national defense A detailed analysis was performed on the items.

A Implementation Method of mixed IPv4/IPv6 Network for Testing Security Vulnerability (보안취약점 테스트를 위한 IPv4/IPv6 혼재 네트워크 구축 방법)

  • Kim Jeong-Wook;Mun Gil-Jong;Kim Yong-Min;Noh Bong-Nam
    • Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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    • 2006.06a
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    • pp.477-480
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    • 2006
  • IPv6는 IPv4의 주소 부족을 해결하기 위해 1998년 IETF에서 표준화된 프로토콜이다. 현재 IPv4가 수축으로 되어 있는 인터넷을 동시에 IPv6로 전환하는 것은 불가능하므로 IPv4/IPv6 혼재네트워크를 거쳐 IPv6 순수 망으로 전환될 것이다. 본 논문에서는 혼재네트워크에서 IPv4 망과 IPv6 망간의 통신을 가능하게 해주는 IPv6 전환 메커니즘 중 터널링 방식에 대해 기술하고, 보안 취약성을 테스트하기 위해 동일한 보안 취약성에 대해 각각 IPv4 패킷, IPv6 패킷, 터널링된 패킷을 캡쳐할 수 있는 구축방안을 제안한다. 제안된 방식은 IPv4, IPv6, 터널링 패킷에 대한 분석이 가능하므로 IPv6 지원을 계획하는 침입탐지, 침입차단 시스템에 활용이 가능하다.

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A Study on API Wrapping in Themida and Unpacking Technique (Themida의 API 난독화 분석과 복구방안 연구)

  • Lee, Jae-hwi;Han, Jaehyeok;Lee, Min-wook;Choi, Jae-mun;Baek, Hyunwoo;Lee, Sang-jin
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.27 no.1
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    • pp.67-77
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    • 2017
  • A protector is a software for protecting core technologies by using compression and encryption. Nowadays malwares use the protector to conceal the malicious code from the analysis. For detailed analysis of packed program, unpacking the protector is a necessary procedure. Lately, most studies focused on finding OEP to unpack the program. However, in this case, it would be difficult to analyze the program because of the limits to remove protecting functions by finding OEP. In this paper, we studied about the protecting functions in the Themida and propose an unpacking technique for it.

Development of Document Security System for KSLV-I Program (KSLV-I 문서보안시스템 개발)

  • Lee, Hyo-Young;Joh, Mi-Ok;Hong, Il-Hee
    • Aerospace Engineering and Technology
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    • v.7 no.1
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    • pp.210-215
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    • 2008
  • Most of technology information obtained from KSLV-I program have been managed by Program Life-Cycle Management System(PLMS). As involving technologies in the program require high level of confidentiality as those may be dealt with entities in international cooperation, the enforcement of strict security policy is inevitable. Therefore, a document security system has been developed to enhance protection in document management. This paper describes the overview and development status of the security system, integrated with PLMS, which aims at preventing illegal access and inadvertant leakage of the technology information.

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Development of Information Security Support System for USN Application (USN 응용을 위한 보안 시스템 개발)

  • Lee, Seok-Cheol;Jeong, Myung-Kyun;Kim, Chang-Soo
    • Annual Conference of KIPS
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    • 2009.04a
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    • pp.1523-1526
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    • 2009
  • 유비쿼터스 환경 구축을 위한 무선 센서 네트워크 기술은 센서에 의한 원격 모니터링과 같은 어플리케이션에 많은 분야에 적용되고 있다. 무선 센서 네트워크는 제한된 컴퓨팅능력으로 인해 기존의 보안 프로토콜을 적용하기 어렵고 무선 매체의 특성상 보안의 취약성을 내재하고 있다. USN 응용은 주로 센서 노드 간의 통신을 위한 센서 필드, 데이터를 수집하고 가공하는 미들웨어, 서비스를 위한 웹 서비스로 구분할 수 있는데, 각 단계에서 정보보호를 위한 보안 정책이 수반되어야 한다. 본 논문에서는 USN 응용을 위한 모니터링 시스템을 대상으로 각 단계별 정보보호 플랫폼과 보안 정책에 관한 내용을 기술한다.

Input File Based Dynamic Symbolic Execution Method for Software Safety Verification (소프트웨어 안전성 검증을 위한 입력 파일 기반 동적 기호 실행 방법)

  • Park, Sunghyun;Kang, Sangyong;Kim, Hwisung;Noh, Bongnam
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.27 no.4
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    • pp.811-820
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    • 2017
  • Software automatic technology research recently focuses not only on generating a single path test-case, but also on finding an optimized path to reach the vulnerability through various test-cases. Although Dynamic Symbolic Execution (DSE) technology is popular among these automatic technologies, most DSE technology researches apply only to Linux binaries or specific modules themselves. However, most software are vulnerable based on input files. Therefore, this paper proposes an input file based dynamic symbolic execution method for software vulnerability verification. As a result of applying it to three kinds of actual binary software, it was possible to create a test-case effectively reaching the corresponding point through the proposed method. This demonstrates that DSE technology can be used to automate the analysis of actual software.