• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.11a
• /
• pp.936-939
• /
• 2014

전자여권(e-Passport)은 새로운 형태의 출입국 관리 시스템으로써 기존 여권보다 보안 기능이 강화 되고 자동화된 출입국 관리를 할 수 있다는 장점으로 인해 전 세계적으로 도입하기 위한 연구가 활발히 진행되고 있다. 본 연구에서는 전자여권 인식장치로부터 전달 받은 기계판독영역(MRZ : Machine Readable Zone) 이미지의 문자 인식률 향상을 위해 정점 샘플링 방법을 적용하여 문자 인식 결과의 오류를 줄이고자 하였다. 실험 환경에서 오류가 가장 많았던 숫자'1'과 영문'T'에 대해 제안 방법을 적용 하였다. 실험 결과, 제안 방법 적용 전보다 입력 이미지의 모든 문자를 정확히 인식한 이미지의 숫자가 4.5% 증가하였고, 각각의 글자에 대한 전체 오차율은 0.242% 감소하였다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2020.05a
• /
• pp.127-130
• /
• 2020

최근 변화하는 소비패턴으로 인해 당일 및 새벽 배송 등의 서비스가 보편화되고 있다. 해당 서비스는 배송 정보를 입력 시 건물에 자유롭게 출입할 수 있는 공동 현관 비밀번호를 기입해야 한다. 이는 이미 빈번하게 발생하고 있는 무단 주거 침입 등의 범죄에 더 쉽게 노출되도록 할 수 있는 위험 요소이다. 본 논문에서는 신뢰할 수 있는 사용자만이 참여 가능한 프라이빗 블록체인 네트워크에서의 차량 번호판 인식 및 스마트 컨트랙트를 통해 랜덤한 마스터 비밀번호를 제공하여, 보안적으로 취약한 비밀번호 기입 절차를 없애고 검증 받은 사용자에게만 출입을 허가하는 방식을 제안한다.

• Journal of Intelligence and Information Systems
• /
• v.11 no.1
• /
• pp.95-105
• /
• 2005

As the security system using facial recognition, the recognition performance depends on the environments (e. g. face expression, hair style, age and make-up etc.) For the revision of easily changeable environment, it's generally used to set up the threshold, replace the face image which covers the threshold into images already registered, and update the face images additionally. However, this usage has the weakness of inaccuracy matching results or can easily active by analogous face images. So, we propose the genetic algorithm which absorbs greatly the facial similarity degree and the recognition target variety, and has excellence studying capacity to avoid registering inaccuracy. We experimented variable and similar face images (each 30 face images per one, total 300 images) and performed inherent face images based on ingredient analysis as face recognition technique. The proposed method resulted in not only the recognition improvement of a dominant gene but also decreasing the reaction rate to a recessive gene.

• Journal of the Institute of Electronics Engineers of Korea CI
• /
• v.40 no.6
• /
• pp.39-46
• /
• 2003

Biometric technologies using biometric information like fingerprints features are in wide use for the secure user authentication in many services including log-in of computer systems, entrance ID and E-commercial security. Nowadays, biometric technologies are ported into small embedded systems like security tokens or smart cards due to the merit of being secure and automatic in comparison with the previous method in user authentication such as using a PIN. In this paper, the security token developed as an embedded system and tile user authentication system implemented and tested using fingerprints information are described. Communications between the security token and tile host are tested and verified with USB. And, execution time and runtime memory on tile security token board was measured and performance improvement was described. In addition, requisites for the transit from the security token to the match-on-card was mentioned.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2006.05a
• /
• pp.171-175
• /
• 2006

RFID는 전자TAG를 사물에 부착하여, 사물이 주위 상황을 인지하고 기존 IT 시스템과 실시간으로 정보교환과 처리할 수 있는 기술이다. 바코드나 Smart Card에 비하여 우수한 특성에 의해 다양한 응용이 가능하며, 향후 900MHZ 대역 제품이 현재의 13.56MHZ 대역을 대신하여 주력 제품이 될 것이라고 예상되고 있다. 현재 RFID가 도입되어 사용되는 T-Money(버스카드)와 출입통제 등 여러가지 분야에서 활용되고 있다. 하지만 RFID는 비접촉식 수신거리에 최대 장점을 가지고 있지만 반대로 수신거리의 문제로 추적이 가능하다는 문제를 가지고 있다. 이것은 사용자의 프라이버시가 될 수 있으며 위조나 변조에 대해서 매우 취약하다는 것에 문제가 있다. 이 논문에서는 보안위협과 제시된 보안기법을 보고 활용성에 대한 고찰을 보겠다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.10 no.12
• /
• pp.3694-3701
• /
• 2009

This paper suggests that location tracking system by RFID. It uses the location tracking and the authentication to entrance after inserts passive RFID tag into user Identification card. The readers periodically broadcast their signal, and then the readers understand where users are by analyzing them. In one of tracking systems, it is possible to detect the area where user had stayed for the longest time during moving according to signal power, to know user moved path and user next moving path. Also, it can be used in entrance authentication system in security area by using tag ID value which stored to backend server.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.19 no.1
• /
• pp.327-334
• /
• 2024

In this paper, we developed a system with a near-infrared LED light source with a wavelength of 950nm to acquire palm vein images and a white LED light source to acquire palm creases based on Raspberry Pi. In addition, we implemented a unique pattern-extractable image processing technology that can prevent counterfeiting and enhance security of mixed creases and palmprints through image pre-processing (Gray scaling, Histogram Equalization, Blurring, Thresholding, Thinning) for the acquired vein and palm images, and secured a source technology that can be used in a security-enhanced system.

• Journal of Digital Convergence
• /
• v.12 no.2
• /
• pp.249-255
• /
• 2014

RFID system is used in several fields such as traffic and access control. The study about RFID security is actively progressed as security threat has been increased. This paper suggests matrix-based authentication protocol. And we analyze the safety of authentication protocol and compares the effectiveness of the protocol with other authentication protocols. The suggested authentication protocol secures from wiretapping attack, replay attack, and spoofing attack, and reduces overload of back-end database so that has efficient performance.

• Journal of Convergence Society for SMB
• /
• v.5 no.3
• /
• pp.9-13
• /
• 2015

With the advance of ICT, the necessity of user authentication to verify the identity of an opponent online not face to face is increasing. The authentication, the basis of the security, is used in various fields. Because ID-based authentication has weaknesses in terms of stability and losses, two or more than two authentication tools are used in the place in which the security is important. Recently, biometric authentication rather than ID, OTP, SMS authentication has been an issue in terms of credibility and efficiency. As the fields applied to current biometric recognition technologies are increasing, the application of the biometric recognition is being used in various fields such as mobile payment system, intelligent CCTV, immigration inspection, and access control. As the biometric recognition, finger print, iris, retina, vein, and face recognition have been studied actively. This study is to inspect the current state of domestic and foreign standardization including understanding of the face recognition and the trend of technology.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.7 no.3
• /
• pp.137-141
• /
• 2014

RFID system is applied to various industry such as process control, distribution management, access control, environment sensing, entity identification, etc. Since RFID system uses wireless communication, it has more weak points for security. In this paper, an authentication protocol is suggested between tags and a reader, which is basic property for security. A suggested protocol use a bivariate polynomial over a finite field and is secure against snooping, replay attack, position tracking and traffic analysis.