• Journal of the Korea Society of Computer and Information
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• v.22 no.10
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• pp.73-81
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• 2017

In this paper, we propose an analysis framework to capture the trends of information security incidents and evaluate the security policy based on the incident analysis. We build a big data from news media collecting security incidents news and policy news, identify key trends in information security from this, and present an analytical method for evaluating policies from the point of view of incidents. In more specific, we propose a network-based analysis model that allows us to easily identify the trends of information security incidents and policy at a glance, and a cosine similarity measure to find important events from incidents and policy announcements.

• Journal of Korea Society of Digital Industry and Information Management
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• v.15 no.2
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• pp.53-61
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• 2019

In this paper, we propose 'a self - conformance system of convergence security provider' to provide basic data for security and reliability of convergence industrial technology, system and service. It is difficult to evaluate convergence security systems, limited to information and communication service providers, unable to check convergence security items, burden of submission documents, difficulty in measuring convergence security service level and we will summarize product and service-based requirements that can be integrated and systematically measure the level of convergence security and define renewed life cycle-based convergence security information and content security and assurance requirements. On the basis of this, each convergence security company declares conformity with the standard itself without the certification of the certification body, and introduces the provider conformity certification system which can manufacture and sell. This will enable the company to strengthen its competitiveness through timely launch and implementation of products and services and cost reduction.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.18 no.3
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• pp.109-120
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• 2008

VoIP utilizes the Internet for the services, and therefore it is vulnerable to intrusions and attacks. Because provided services deal with information related to privacy of users, it requires high level security including authentication and the confidentiality/integrity of signaling messages and media streams. However, when such a protocol is implemented in a VoIP phone, the implementation can have limitations due to the limited resources. The present study purposed to implement VoIP security protocols and to evaluate their performance in terms of connection quality and voice quality by applying them to SIP proxy and UA (User Agent). In the result of performance evaluation, the application of the security protocols did not lower voice quality, but connection quality was high in the DTLS based security protocol. As the protocol was applicable to signaling and media paths based on DTLS, we found that it can be a solution for the limited resources of VoIP phone.

• 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.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.17 no.4
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• pp.61-74
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• 2007

In Common Criteria evaluation scheme, sponsor and evaluator should estimate evaluation cost and duration of IT security system evaluation in contracting the evaluation project. In this paper, We analyzed study result that achieve at 2003 and 2005, and utilized part of study result. And we empirically estimate relative evaluation effort ratios among evaluation assurance levels($EAL1{\sim}EAL7$) in CC v2.3 and CC v3.1. Also, we estimate the ratios from 'developer action elements', adjusted 'content and presentation of evidence elements', and 'evaluator action elements 'for each assurance component. We, especially, use ratio of amount of effort for each 'evaluator action elements', that was obtained from real evaluators in KISA in 2003. Our result will useful for TOE sponsor as well as evaluation project manager who should estimate evaluation cost and duration for a specific EAL and type of TOE, in a new CC v3.1 based evaluation schem.

• Convergence Security Journal
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• v.3 no.2
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• pp.57-65
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• 2003

A protection profile is the required specification document by consumer groups to specify what security purpose they would like to have in their specialized products. A protection profile assumption is the document that specifies consumer environment in the physical, artificial, network perspective and the contents of intended usage which include usage limitation, the value of latent asset, and additional applications for a TOE (Target of Evaluation). In this paper, we compare the assumptions of the NSA IDS PP and the IDS PP for government.

• Review of KIISC
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• v.13 no.4
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• pp.25-36
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• 2003

현재 미국을 비롯한 선진 국가에서는 ISO 국제 표준인 국제 공통 평가 기준 ISO/IEC 15408(CC v2.1, Common Criteria for Information Technology Security Evaluation))과 공통평가방법론(CEM, Common Methodology for Information Technology Security Evaluation)에 근거하여 IT 제품 및 시스템에 대한 보안성 평가를 하고 있다. 그러나, 현재 CC 및 CEM은 주로 IT 제품의 보안성 평가를 위한 것이며, 실제 IT 환경에서 운용되는 시스템에서 이를 적용해 평가하는데는 많은 어려움이 있다. ISO를 중심으로 각 국에서도 이와 관련해 시스템 평가에 CC를 적용하기 위한 방법론이 검토 중에 있다. 그리고 현재 개발 진행중이거나 시장에 출시된 많은 제품이 여러 단일 제품이 합성된 통합제품 형태로 구성되고 있는 추세이며, 이는 시스템 평가 문제와 더불어 향후 CC 기반의 평가를 활성화시키기 위해 풀어야 할 문제로 제기되고 있다. 본고에서는 각 국에서 추진 중인 시스템 평가 동향을 살펴보고, 현재 ISO/IEC SC27/WG3에 표준화로 제안된 "Security Assessment of Operational System"에 대해 살펴보고자 한다.자 한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.1
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• pp.179-186
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• 2018

The number of devices connect to the internet is rapidly increasing with the advent of the IoT(Internet of Things). The IoT has improved the convenience of life. However, it makes security issues such as privacy violations. Therefore cybersecurity is the most important issue to be discussed nowadays. Especially, various protocols are used for same purpose due to rapidly increase of IoT market. To deal with this security threat noble vulnerability analysis is needed. In this paper, we contribute to the IoT security by proposing a new randomness-based test case evaluation methodology using variance and entropy. The test case evaluation method proposed in this paper can evaluate the test cases at a high speed regardless of the test set size, unlike the traditional technique.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.20 no.4
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• pp.91-105
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• 2012

This study, the cause of an aviation security employees' job satisfaction and dissatisfaction will be understood and the data can be used as evidence to explain the position of the employees. Moreover, the results of this study shall be conducted to increase the level of service delivery and also to remove unsatisfactory factors. Thus, according to this research survey shows the understanding of the job satisfaction and service delivery influences on the overall job satisfaction of a secure enterprise's security screeners. As a results, by improving the job satisfaction of aviation security screeners, the world's most safe, convenient service and quick airport service delivery could be achieved. Therefore, in order to improve the level of Korea and the international competitiveness of airlines, the promotion of job satisfaction of employees would be very important. Moreover based on the results of this study, the advanced research on the recognition differences for service evaluation between the customers and security screeners are needed.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.2
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• pp.501-511
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• 2018

The purpose of this study is to develop the performance evaluation indicator of information security training program for developing the next generation of top security leaders. Through literature review and focus group interview, we derived the performance areas and indicators based on the logic model. We conducted AHP(Analytic Hierarchy Process) questionnaire to calculate the weight of the derived indicators, and developed the performance indicator based on the survey results. Performance indicators were composed of 18 indicators in four main categories.