• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.511-512
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• 2021

최근 들어 주식시장에 신규 개인투자자들의 유입이 많아지고 있다. 하지만 기본적인 금융에 대한 지식이 부족한 사람들이 많고 기존 서비스들은 금융 혹은 주식에 대한 이해도를 기반으로 직접 분석해야 했다. 이런 사람들을 위해 직접 분석하지 않더라도 투자할 기업을 판단할 수 있는 시각화 정보(Infographics) 서비스를 구현하였다. 필요한 정보를 얻기 위해서 open API를 사용하였는데 API의 특성상 윈도우즈 환경이 필요하여 리눅스와 윈도우즈 서버를 구축하고 서로 다른 OS 환경에서 이종 API를 처리할 수 있도록 개발하였다.

• Journal of Intelligence and Information Systems
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• v.14 no.2
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• pp.179-192
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• 2008

This case study shows constructing the knowledge-based system using a rule-based approach for detecting illegal transactions regarding money laundering in the Korea Financial Intelligence Unit (KoFIU). To better manage the explosive increment of low risk suspicious transactions reporting from financial institutions, the adoption of a knowledge-based system in the KoFIU is essential. Also since different types of information from various organizations are converged into the KoFIU, constructing a knowledge-based system for practical use and data management regarding money laundering is definitely required. The success of the financial information system largely depends on how well we can build the knowledge-base for the context. Therefore we designed and constructed the knowledge-based system for anti-money laundering by committing domain experts of each specific financial industry co-worked with a knowledge engineer. The outcome of the knowledge base implementation, measured by the empirical ratio of Suspicious Transaction Reports (STRs) reported to law enforcements, shows that the knowledge-based system is filtering STRs in the primary analysis step efficiently, and so has made great contribution to improve efficiency and effectiveness of the analysis process. It can be said that establishing the foundation of the knowledge base under the entire framework of the knowledge-based system for consideration of knowledge creation and management is indeed valuable.

• Journal of the Korean Geographical Society
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• v.34 no.3
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• pp.265-279
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• 1999

경제활동의 세계화는 세계적 금융체계의 출현을 수반하고 있으며 금융부문의 역할은 현대 경제체계에서 중요성을 더하고 있다. 또한 정보통신기술의 발달과 금융기법의 혁신, 자본이동의 자유화는 새로운 조절양식과 이에 따른 조절공간의 변화를 수반한다. 한국의 경우 금융구조조정은 전세계적인 금융위기와 필요에 의한 대응으로 이해되며 제도적 변화와 함께 금융기관의 흡수.합병.퇴출을 통하여 기업부문, 정부부문뿐 아니라 공간적으로도 막대한 영향을 미친다. 일반은행 점포수의 변화를 금융구조조정 이전인 1997년과 이후인 1998년을 비교 분석한 결과 점포수의 급격한 감소와 함께 지역적인 특색이 나타났다. 금융구조조정은 서울.경기를 포함한 수도권에서 가장 활발히 일어나고 있으며, 도시 인구규모에 민감하게 반응하여 소규모 도시일수록 변화의 폭이 감소하고 있다. 구조조정 기간 중에 은행수의 변화는 인구규모와 밀접한 연관성을 나타내고 있다.

• Review of KIISC
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• v.34 no.2
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• pp.13-19
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• 2024

양자내성암호는 기존 공개키 암호 스킴과 비교하여 일반적으로 많은 연산량과 높은 메모리 사용량을 요구한다. 양자내성암호 마이그레이션을 위한 최적화 연구들이 활발하게 이루어지고 있다. PQM4 프로젝트를 시작으로 하여, ARM 환경에서 다양한 연구 결과들이 존재하지만, 저사양 장치에서의 연구 결과는 미진하다. 따라서, 본 논문에서는 현재까지 격자 기반암호의 최적화 연구를 리소스 자원이 제한된 저사양 장치 관점으로 살펴본다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.6
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• pp.1475-1487
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• 2018

To verify remitter's identity when the remitter transfers money to a recipient using an electronic financial service provided by the financial institution, the remitter inputs the information; such as the withdrawal account number, the withdrawal amount, the password pre-registered with the financial company, or the information from authenticating medium that is previously distributed by the financial institution. However, the 1-Way transaction between the financial institution and the remitter is exposed to a great risk of accidents such as an anomaly remittance or a voice phishing fraud. Therefore, in this study, we propose a 2-WAY trade verification model for electronic financial transaction that can be mutually agreed by allowing the recipient to share the transaction information with the remitter and the financial company. We have improved the traditional electronic financial transaction's method by replacing it to 2-WAY trade method, and it is used for various purposes; such as preventing an error within the remittance or voice phishing fraud, enhancing loan transaction and contract transaction, etc. Through these variety of applications, we are expecting to reduce the inconveniences while improving the convenience of financial transaction and vitalizing the P2P transaction of financial institution.

• Korea Information Processing Society Review
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• v.28 no.2
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• pp.59-67
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• 2021

• Journal of the Korea Institute of Information Security & Cryptology
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• v.20 no.4
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• pp.145-154
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• 2010

End-to-End(E2E) encryption is to encrypt private and important financial information such as user's secret access numbers and account numbers from user's terminal to financial institutions. There has been found significant security vulnerabilities by various hacking in early E2E encryption system since early E2E encryption is not satisfied the basic security requirement which is that there does not exist user's financial information on plaintext in user's terminal. Extensional E2E encryption which is to improve early E2E encryption provides confidentiality and integrity to protect user's financial information from vulnerabilities such as alteration, forgery and leakage of confidential information. In this paper, we explain the extensional E2E encryption technology and present considerable security issues when the extensional E2E encryption technology is applied to financial systems.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.21 no.4
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• pp.47-60
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• 2011

With the increase in the use of mobile banking service, mobile banking has become an attractive target to attackers. Even though many security measures are applied to the current mobile banking service, some threats such as physical theft or penetration to a mobile device from remote side are still remained as unsolved. With aiming to fill this void, we propose a novel approach to prevent e-financial incidents by analyzing mobile device user's input patterns. This approach helps us to distinguish between original user's usage and attacker's usage through analyzing personal input patterns such as input time-interval, finger pressure level on the touch screen. Our proposed method shows high accuracy, and is effective to prevent the e-finance incidents proactively.

• The Journal of Information Technology
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• v.2 no.2
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• pp.107-125
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• 1999

The growing popularity of Internet and the technology revolution of information communication has affected our financial system, and electronic banking has increased its scale and range since '90. Now this changes, deeply and fast, invade the our economical-social environments. Without having to go to a bank, customer and merchants will be able to perform freely complicated financial transactions by accessing online banking network and CD/ATM etc. Customer can use the various payment method - cash, credit card, smart cards, electronic money in real world and cyberspace, and manager the assets more efficiently. They increased their money liquidity yet. Banks need to expand the various baskets of transaction services and methods to satisfy their customer needs and create new participator, Government had to evaluate and forecast the trend of electronic banking, and establish a new rules and standards in the new electronic payment system.

• Review of KIISC
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• v.15 no.4
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• pp.44-49
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• 2005

전자금융거래를 포함하여 안전한 전자거래 기반 마련을 위해 1999년 7월 1일 전자서명법의 시행과 더불어 시작된 공인인증서비스는 비대칭형(공개키) 암호기술을 기반으로 하는 전자서명(Digital Signature)에 법적 효력을 부여하여, 온라인 전자결제 등 전자거래를 위한 안전한 기반을 마련하여 왔다. 그러나, 최근 정보화의 급속한 발전으로 일반인도 쉽게 해킹툴을 접할 수 있게 되어, 인터넷뱅킹 해킹사고 등 전자금융거래의 안전성이 위협을 받고 있다. 본고에서는 전자금융거래에서 중요한 역할을 담당하는 공인인증서비스의 취약점을 분석하고 공인인증서비스 안전성 강화 방안에 대하여 기술한다.