• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.3
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• pp.613-628
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• 2019

In-Vehicle Infotainment provides navigation and various functions through the installation of the application. And infotainment is very important to control the entire vehicle by sending commands to the ECU. Infotainment supports a variety of wireless communication protocols to install and update applications. So Infotainment is becoming an attack surface through wireless communcation protocol for hacker's access. If malicious software is installed in infotainment, it can gain control of the vehicle and send a malicious purpose command to the ECU, affecting the life of the driver. Therefore, measures are needed to verify the security and reliability of infotainment software updates, and security requirements must be derived and verified. It must be developed in accordance with SDL to provide security and reliability, and systematic security requirements must be derived by applying threat modeling. Therefore, this paper conducts threat modeling to derive infotainment update security requirements. Also, the security requirements are mapped to the Common Criteria to provide criteria for updating infotainment software.

• Review of KIISC
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• v.10 no.3
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• pp.49-62
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• 2000

인터넷을 통한 기업간(B2B) 전자거래 시장규모가 올해 17조원대에 이르고 기업과 소비자간(B2C) 전자상거래 시장규모 또한 1조원을 넘어서는 등 전체 국내 전자상거래 시장 규모가 18조원을 넘어 설 전망이다. 이는 정보통신시스템에 대한 사회 전반의 의존도가 한층 증대하고 있음을 보여주는 단적인 예라 할 수 있다 오늘날 인터넷 사용이 보편화되고 전자상거래의 규모가 커져 갈수록 정보보호시스템에 대한 신뢰성 및 안전성에 대한 입증 노력 또한 더 강하게 요구되고 있는게 사실이다. 특히 안전성이 입증되진 않은 취약한 정보보호시스템을 사용한 시스템 구축은 오히려 그 위험성을 증가시킬 수 있음을 최근의 많은 해킹사례를 통해 경험한바 있다, 향후 예견되는 이러한 엄청난 사회적 손실을 막기 위한 제도적 노력의 일환으로 미국, 영국, 독일, 프랑스 등 선진국에서는 10여년 전부터 자국의 환경에 적합한 평가기준을 마련하여 정보보호시스템을 평가해오고 있다 본고에서는 정보보호시스템 평가제도와 관련하여 최근의 국제동향과 그에 따른 국내 대응방안을 모색해 보고자한다. 특히 정보보호시스템 평가를 위한 국제기준의 CC(Common Criteria)와 이를 기반으로 맺어진 MRA(Mutual Recognition Arrangement)의 전개과정을 살펴보고 유럽의 상호인정협정인 ITSEC-MRA의 출범배경과 올 5월에 새롭게 출범한 CC-RA체제와 특징적인 모습을 고찰해 보고자한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.17 no.6
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• pp.99-119
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• 2007

The USB flash drive is common used for portable storage. That is able to store large data and transfer data quickly and carry simply. But when you lose your USB flash drive without any security function in use, all stored data will be exposed. So the new USB flash drive supported security function was invented to compensate for the problem. In this paper, we analyze vulnerability of 6 control access program for secure USB flash drives. And we show that exposed password on communication between secure USB flash drive and PC. Also we show the vulnerability of misapplication for initialization. Further we develop a protection profile for secure USB flash drive based on the common criteria version 3.1. Finally, we examine possible threat of 6 secure USB flash drives and supports of security objectives which derived from protection profile.

• Journal of Digital Convergence
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• v.15 no.6
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• pp.219-227
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• 2017

Network access control should be able to effectively block security threats to the IT infrastructure, such as unauthorized access of unauthorized users and terminals, and illegal access of employees to internal servers. From this perspective, it is necessary to build metrics based on relevant standards to ensure that security is being met. Therefore, it is necessary to organize the method for security evaluation of NAC according to the related standards. Therefore, this study builds a model that combines the security evaluation part of ISO / IEC 15408 (CC: Common Criteria) and ISO 25000 series to develop security metric of network access control system. For this purpose, we analyzed the quality requirements of the network access control system and developed the convergence evaluation metric for security of the two international standards. It can be applied to standardization of evaluation method for network access control system in the future by constructing evaluation model of security quality level of network access control system.

• The KIPS Transactions:PartC
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• v.9C no.4
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• pp.481-488
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• 2002

Guarantee of the data integrity is important to the Virtual Private Network (VPN) which can be improved cost decreasing and effective work by applying on Internet as the private network. Thus, the integrity function in the VPN must be maintained and the security manager must be check it occasionally. In this paper we propose the VPN Integrity Evaluation System (VIES) which is collecting, and evaluating automatically the vulnerable data of VPN against current hacking mechanisms in information security system. And this VIES obtain to the results which have objectivity and fairness of evaluation by driving off the evaluation scenario based on Common Criteria (CC), and general users or non-specialist can utilize easy the security evaluation of organization.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.24 no.5
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• pp.1001-1011
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• 2014

Smart Grid Devices could have security vulnerabilities that have legacy communication networks because of the fact that Smart Grid employs bi-directional communications and adopted a variety of communication interface. Consequently, it is required to build concrete response processes and to minimize the damage of the cyber attacks including security evaluation and certification methods. DCU is designed to collect meter data from numerous smart meter and send to utility's server so DCU installed between smart meter and utility's server. For this reason, If DCU compromised by attacker then attacker could use DCU to launching point for and attack on other devices. However, DCU's security evaluation and certification techniques do not suffice to be deployed in smart grid infrastructure. This work development DCU protection profile based on CC, it is expected that provide some assistance to DCU manufacturer for development of DCU security target and to DCU operator for help safety management of DCU.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.4
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• pp.739-751
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• 2019

Security in embedded devices has become a significant issue. Threats on the sup-ply chain, like using counterfeit components or inserting backdoors intentionally are one of the most significant issues in embedded devices security. To mitigate these threats, high-level security evaluation and certification more than EAL (Evaluation Assurance Level) 5 on CC (Common Criteria) are necessary on hardware components, especially on the cryptographic module such as AES. High-level security evaluation and certification require detecting covert channel such as backdoors on the cryptographic module. However, previous studies have a limitation that they cannot detect some kinds of backdoors which leak the in-formation recovering a secret key on the cryptographic module. In this paper, we present an expanded definition of backdoor on hardware AES module and show how to detect the backdoor which is never detected in Verilog HDL using model checker NuSMV.

• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.61-66
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• 2017

Recently, IoT technology is rapidly developing with the keyword "Anytime, Anywhere, Convenient". In addition, security problems in IoT systems are exploding and the damage is increasing as well. In this paper, we propose a method to develop IoT system safely by using internationally recognized CC evaluation in ICT by identifying the standardization and security technology development status defining IoT system security requirements. For this purpose, IoT system and service security aspects are analyzed. Based on this, it is possible to design the security functional requirements and to demonstrate the rationale of the security objective through the correspondence relation, and it is possible to design the protection profile for the IoT system. This is a sufficient basis for the development methodology to be presented in this paper because it is used as a means of referring to the set of security requirements of administrators, developers, and users.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.13 no.4
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• pp.13-28
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• 2003

The Protection Profile(PP) is a common security function and detailed statement of assurance requirements in a specific class of Information Technology security products such as firewall and smart card. The parts of TOE security environment in the PP have to be described about assumption, treat and security policy through analyzing purpose of TOE. In this paper, we present a new security policy derivation among TOE security environment parts in the PP. Our survey guides the organizational security policy statements in CC scheme through collected and analyzed hundred of real policy statements from certified and published real PPs and CC Toolbox/PKB that is included security policy statements for DoD. From the result of the survey, we present a new generic organizational policy statements list and propose a organizational security policy derivation method by using the list.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2001.11a
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• pp.335-339
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• 2001

국외의 경우엔 일찍부터 컴퓨터 시스템 평가기준이 제정되어 활용중이나 국내의 경우엔 아직 평가기준이 없는 상태이다. 본 논문에서는 국내외 정보시스템의 보안 요구사항과 보증 요구사항을 바탕으로 리눅스 기반 PC의 보안성 평가기준을 제안하고자 한다. 평가등급은 KL(Korea Linux)1, KL2, KL3 등의 3등급으로 분류하였다. 제안된 평가기준은 오픈 소스기반의 리눅스를 이용하여 보안기능을 강화한 운영체제 개발방향을 제시하였고, 보안 시스템 구축의 방향 및 보안표준에 대한 복잡한 문제를 줄였다. 또한 국제공통평가기준(CC : Common Criteria)의 보안기능부분과 보증부분을 거의 수용함으로써, 외국의 보안성 평가기준과 상호 운용이 가능하다.