• Annual Conference of KIPS
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• 2015.10a
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• pp.1292-1294
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• 2015

4족 보행 로봇이 환경에 동적으로 적응하여 자신에게 최적의 운동을 만들어 내는 연구는 중요하다. 우리는 유전알고리즘을 이용하여 전진 걸음새 동적 학습 시스템을 제안하였다. 이 시스템의 핵심은 로봇의 운동과 이 운동의 결과를 피드백해주는 센서들이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.896-899
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• 2009

The fear of unauthorized, hidden readouts has dominated the radio frequency identification (RFID) privacy debate. Therefor all published and previous works for privacy mechanisms so far require consumers to actively and explicitly protect read access to their tagged items. This paper introduces the underlying mechanism of our extension to considerations for security and analyzes its tracking resistance and identification performance, and discusses deployment aspects.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.6 no.1
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• pp.39-52
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• 1996

본 논문에서는 고속 영상자료를 병렬 암호화 할 수 있는 새로운 알고리즘을 제안하였다. 암호화 테이블과 스케닝 순서, 스크램블 등의 문제점들을 개선하였다. 입력자료들은 독립된 블럭으로 분리되며 각 블럭들은 같은 암호화 알고리즘을 통하여 암호화 된다. 그러므로 시스템이 n개의 처리기로 구성되어 있으면, 전체 처리시간이 1/n로 감소됨이 기대된다. 또한 대표성이라는 개념을 적용한 결과, 높은 비도를 갖는 키를 사용한 효과르 얻을 수 있다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.8 no.1
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• pp.53-64
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• 1998

본 논문에서는 스트림 암호와 공개 키 알고리듬을 혼합하여 초기 동기 방식의 고신뢰도 동기식 스트림 암호 시스템을 제안하였다. 스트림 동기를 위하여 열악한 채널에서도 동기를 유지할 수 있는 고신뢰도 초기 스트림 동기를 제안하고, 데이터 기밀성을 혼합형 키 수열 발생기, 시스템의 안정성재고를 zs알고리듬, 그리고 세션 키 분배를 위한 M-L 키 분배 방식을 적용하여 분석하였다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.14 no.2
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• pp.113-121
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• 2004

In a result that the types of intrusion detection are getting diverse in accordance with rapid internet sprawl, many intrusion detection systems have been developed. In this paper, we will propose a novel evaluation on the evaluation criteria for the intrusion detection systems using Fuzzy integrals

• Annual Conference of KIPS
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• 2021.11a
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• pp.733-735
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• 2021

유전 프로그래밍 기법을 이용하여 완성된 프로그램 코드를 생성하는 연구는 최근까지 실용적으로 사용할 만한 결과를 만들지 못하고 있다. 우리는 완성된 프로그램 코드를 만들지 않고, 특정 기능을 갖는 함수 코드를 자동 생성하는 연구에 중점을 두었다. 실제 구현을 위한 시스템을 설계하고 타당성을 검토 하였다.

• Annual Conference of KIPS
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• 2008.11a
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• pp.1469-1472
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• 2008

Honeynets have become one of essential tools in system and network security. As the importance of security has increased over the years, many researchers try to improve the overall Honeynet architecture. Due to their efforts, the Honeynets have evolved up to the third generation. However, the GenIII architecture has some limitations. In this paper, we address some of the limitations and provide solutions by redesigning the framework of data capture of Honeynets.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.24 no.1
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• pp.31-40
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• 2014

In Korea, the Public Key Infrastructure (PKI) has been introduced. For secure information transmission and identification, the electronic signature authorization system of a certificate-based is built, and then the service provide.The certificate is stored in location what users can easily access and copy. Thus, there is a risk that can be stolen by malware or web account hacking. In addition, private key passwords can be exposed by the logging tool, after keyboard security features are disabled. Each of these security weaknesses is a potential conduit for identity theft, property/asset theft, and theft of the actual certificates. The present study proposes a method to prevent the private key file access illegally. When a certificate is stored, the private key is encrypted by the dependent element of the device, and it is stored securely. If private key leakage occurs, the retrieved key could not be used on other devices.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.6
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• pp.1513-1526
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• 2016

Since finance companies started e-banking services, those services have been diversified and use of them has continued to increase. Finance companies are implementing financial security policy for safe e-banking services, but e-Banking incidents are continuing to increase and becoming more intelligent. Along with the rise of internet banks and boosting Fintech industry, financial supervisory institutes are not only promoting user convenience through improving e-banking regulations such as enforcing Non-face-to-face real name verification policy and abrogating mandatory use of public key certificate or OTP(One time Password) for e-banking transactions, but also recommending the prevention of illegal money transfer incidents through upgrading FDS(Fraud Detection System). In this study, we assessed a blacklist based auto detection method suitable for overall situations for finance company, a real-time based suspicious transaction detection method linking with blacklist statistics model by each security level, and an alternative FDS model responding to typical transaction patterns of which information were collected from previous e-Banking incidents.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.15 no.5
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• pp.59-71
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• 2005

A RFID (Radio Frequency Identification) system receives attention as the technology which can realize the ubiquitous computing environment. However, the feature of the RFID tags may bring about new threats to the security and privacy of individuals. Recently, Juels proposed the minimalist cryptography for very low-cost RFID tags, which is secure. but only under the impractical assumption such that an adversary is allowed to eavesdrop only the pre-defined number of sessions. In this paper, we propose a scheme to protect privacy for very low-cost RFID systems. The proposed protocol uses only bit-wise operations without my costly cryptographic function such as hashing, encryption which is secure which is secure against an adversary who is allowed to eavesdrop transmitted message in every session any impractical assumption. The proposed scheme also is more efficient since our scheme requires less datas as well as few number of computations than Juels's scheme.