• Journal of Korean Library and Information Science Society
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• v.38 no.3
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• pp.53-72
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• 2007

The Internet is now an integral part of the everyday lives of a majority of people. They are demanding web sites that offer credible information - Just as much as they want sites that are easy to navigate. But the online reality today is that few Internet users say they can trust the web sites that have products for sale or the sites that offer advice about which products and services to buy. Users want the web sites they visit to provide clear information to allow them to judge the site's credibility. Users want to know who runs the site; how to reach those people; the site's privacy policy; and how the site deals with mistakes. In the eyes of users all sites ate not equal. Users have different credibility standards for different types of sites. For news and information sites users want advertising clearly labeled as advertising. And users want the site to provide a list of the editors responsible for the site's contents, including the editor's email address. For e-commerce sites, user expectations and demands are just about as high as they can be. They say that it is very important that these sites provide specific, accurate information about the site's policies and practices.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.1
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• pp.37-43
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• 2015

Technical treatments of image contents on the web include the copy protection method such as the image capture protection technology and the traitor tracing method to detect unauthorized duplications through watermarking insertion or feature information technology. However, these two methods have their own weaknesses. The image capture protection method is unable to protect illegal captures when the URLs of image sources are exposed. The traitor tracing method is fundamentally unable to protect illegal captures due to its post-treatment method. Besides, the weakness of using the copyright information display technology involves easy removal of copyright information from copyrighted contents. This paper suggests a model of the web image contents protection system which makes it hard to separate copyright information from web image contents and allows image contents to be shown only in the authorized websites.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.30 no.1
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• pp.59-74
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• 2020

The web space where web applications run is the cyber information warfare of attackers and defenders due to the open HTML. In the cyber attack space, about 84% of worldwide attacks exploit vulnerabilities in web applications and software. It is very difficult to detect web vulnerability attacks with security products such as web firewalls, and high labor costs are required for security verification and assurance of web applications. Therefore, rapid vulnerability detection and response in web space by automated software is a key and effective cyber attack defense strategy. In this paper, we establish a security risk management model by intensively analyzing security threats against web applications and software, and propose a method to effectively diagnose web and application vulnerabilities. The testing results on the commercial service are analyzed to prove that our approach is more effective than the other existing methods.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.1466-1469
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• 2009

최근 웹 서비스 환경에서 공격자가 자신의 근원지를 은닉하기 위하여 여러 단계의 경유지를 거쳐 공격을 시도하는 사례가 증가하고 있으며, 이에 대한 법률적 증거 확보 및 능동적인 대처를 위하여 웹 어플리케이션에서의 역추적 기술이 필요하다. 현재 자바 애플릿이나 ActiveX, 플러그인, 웹 로그 등을 이용한 응용 계층의 추적 기술이 개발되고 있지만, 웹 클라이언트에 의하여 차단될 가능성이 높고, 플러그인 종류 및 호환되지 않는 운영 환경 등 제약조건으로 인하여 사용에 제한이 있다. 본 논문에서는 액션 스크립트를 이용한 웹 클라이언트 모니터링 시스템을 제안한다. 제안된 시스템은 웹 클라이언트가 실행을 인식하지 못하고 수행되어 웹 클라이언트에 의한 차단을 막을 수 있고, 다양한 운영 환경에서 사용이 가능하다.

• The KIPS Transactions:PartC
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• v.14C no.7
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• pp.545-552
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• 2007

P3P(Platform for Privacy Preference) that is used in the World Wide Web is a standard to define and negotiate policies about definition, transmission, collection, and maintenance of personal information. Current P3P standard provides methods that define client personal information protection policy and P3P policy associated with web server. It also provides a method that compares these two policies. The current P3P standard, however, does not handle detail functions for safe transmission of the personal information and data. Also, it does not handle problems that can be induced by the detail functions. In this paper, in order to solve these problems, we propose a Secure P3P(S-P3P) protocol, which is a security protocol for the current P3P standard, offers mutual authentication between the web server and the client, and guarantees integrity and confidentiality of the messages and data. Furthermore, a S-P3P protocol provides non-repudiation on transmission and reception of personal information that is transmitted from the client to the web server.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.11a
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• pp.643-644
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• 2009

금융권 정보보안 강화를 위해 관리적 기술적 측면의 정보보안 요구사항을 분석하였다. 금융분야는 IT법규 준수가 중요하기 때문에 기반시설의 취약점 진단을 위해서 사용되는 정보보호수준평가의 통제분야에 IT법규 중 법률 및 정보보호활동 내역을 포함되어야 하며, 자산보호 및 서비스 연속성 보호를 위해 웹 애플리케이션의 취약점을 보호해야 한다.

• Journal of Digital Convergence
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• v.13 no.12
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• pp.193-202
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• 2015

The development of the security solutions that can provide a variety of security services is needed urgently. For development of the security solutions, analysis of international standard security technology is the key. In this paper, international organizations' standardization(ISO/IEC JTC1 SC27, ITU-T SG-17, IETF Security Area, etc.) and the current trend of the standard security technology are mainly analyzed. The core of the latest security technology(Application Bridging, DNS-based Authentication, HTTP Authentication, IP Security, Javascript Security, Authentication Technology Next Generation, Managed Incident, Web Authorization Protocol, Security Automation, Transport Layer Security, etc.) is analyzed focusing on 18 working groups of the IETF.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10e
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• pp.538-540
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• 2002

본 논문에서는 웹 서버의 허용 제어 장치를 설계하였다. 웹 서버 허용 제어 장치는 웹 서버의 처리 용량을 초과하는 사용자 요청을 차단하여, 과부하로부터 웹 서버를 보호한다. 허용 제어 장치에 의하여 요청이 차단된 사용자는 재시도하는 특성을 보이는데, 이로 인하여 웹 서버의 부하는 가중된다. 기존의 웹 서버 허용 제어 장치는 이러한 사용자의 재시도 특성을 고려하지 않음으로써, 재시도하는 사용자가 다시 허용이 차단될 수 있다 본 논문에서 제안하는 티켓 기반 웹 서버 허용 제어 장치는 재시도하는 사용자를 구분하고 우선적으로 서비스하여, 웹 서버의 과부하시에 사용자간 평등함을 제공한다.

• Review of KIISC
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• v.20 no.4
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• pp.11-20
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• 2010

정보시스템과 인터넷의 발전은 모든 정보 자산의 네트워킹이 가능해짐에 따라, IT 인프라를 중심축으로 한 정보사회 발전의 견인차 역할을 하였다. 최근에는 참여 공유 개방으로 대변되는 웹 2.0 기술과 함께 가히 폭발적인 스마트폰 시장환경이 맞물리면서 "모바일 웹 2.0" 시대로의 빠른 진화를 거듭하고 있다. 하지만 그에 따른 정보사회의 역기능도 만만치 않게 나타나고 있다. 우리는 이미 해킹 및 악성코드로 인한 정보 유출 피해를 비롯하여 서비스 거부 공격으로 인한 비즈니스 연속성 침해에 이르기까지 끊이지 않는 사이버 침해사고를 겪고 있다. 본 논문에서는 진화하고 있는 악성코드에 대한 최근 동향 분석을 통해 미래 정보 사회를 주도할 소설 네트워킹 환경에서의 보안위협이 어떻게 진화해 나가고 있는지 살펴보고자 한다. 또한 사이버범죄 및 사이버전쟁의 사례 분석을 통해 사이버 보안 문제에 대한 보다 적극적인 대응책 마련이 필요하다는 사회적 인지와 인식이 확립되고 보다 강력하고 안전한 대응 체계를 위한 우리의 노력이 끊임없이 연구되길 기대해 본다.

• Journal of Korea Multimedia Society
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• v.7 no.1
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• pp.91-97
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• 2004

As the electronic commercial transaction is being transacted by contents which can get an illegal intrusion from the outside, we sincerely require security for them. We must consider a protection countermeasure about intrusion from protection of the passive form to protection intrusion of the active one. So the security is required against hackers illegality intrusion into the contents. As soon as the intrusion happens about the contents, the tools providing the monitor of contents are required to minimize the damage to the systems. Modified web contents detection system in this paper prevents the loss of resources and manpower required through individually monitoring on the web. Also, this paper offers rapid support of security that it analyzes the weakness of contents security of the web environment and the cause of the problem with the leakage of information. So this system has the pur pose of protecting the weakness of contents security and the leakage of information.