• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.22 no.4
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• pp.652-657
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• 2013

In this study, we developed a counting method for non-contact ID cards using an optical fiber displacement sensor instead of the traditionally used friction counting method. The proposed method has the advantage of high speed and automated measurement. For counting non-contact ID cards, an H-type optical fiber sensor, jig part, and counting program are developed separately to build the system and adjust it. Through the experimental test results, it was confirmed that counting is possible with one type of international ID card and one type of financial security card based on ISO7810. Furthermore, by applying the proposed method to 100 ID cards 100 times repeatedly, it was confirmed that it has high accuracy and an error ratio of 0%. We experimentally demonstrated that the proposed counting method for non-contact ID cards using an optical fiber displacement sensor can perform measurements with high accuracy and high speed.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.9 no.2
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• pp.49-60
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• 1999

IC 카드의 하드웨어적인 제약으로 대부분의 IC 카드는 대칭키 알고리즘을 사용하고 있지만 IC 카드 하드웨어 제조 기술의 발전으로 앞으로는 보안성이 우수한 비대 칭키 알고리즘이 많이 사용될 것이다. 그리고 IC 카드의 가장 큰 제약적 중 하나는 메모리 용량의 한계이다. 따라서 보안상 안전하면서도 메모리를 적게 사용하는 IC 카드 운영체제의 구현을 중요한 문제이다. 그래서 본 논문에서는 다양한 종류의 키 알고리즘을 수용할 수 있는 키 파일 탐색 기법을 제안하였다. 또한 데이터 파일 헤더에 잠금 필드를 삽입하여 보안성을 향상시켰으며 메모리 사용량을 줄일 수 있도록 데이터 파일 헤더만을 이용한 파일 탐색 기법과 자유 공간 탐색 기법을 제안하였다. Because of the evolution of IC card hardware fabrication technologies IC card will be able to accept asymmetric key encryption algorithm in the future. One of the most restrictive points of IC card is memory capacity. Therefore it is an important problem to design a secure IC card operating system using memory in small. In this paper we proposed a key file search mechanism using a key length field inserted in a key file header structure. The key file search mechanism makes IC card execute any key-based encryption algorithm. In addition we proposed inserting a lock field in data file header structure. The lock field intensifies the security of a data file. Finally we proposed a data file search mechanism and free space search mechanism using only data file header. The file system using these mechanisms spends smaller memory than that using a file description table and record of unallocated space.

• International Journal of Internet, Broadcasting and Communication
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• v.9 no.3
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• pp.35-43
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• 2017

In 2013, Lee-Lie proposed secure smart card based authentication scheme of Zhu's authentication for TMIS which is secure against the various attacks and efficient password change. In this paper, we discuss the security of Lee-Lie's smart card-based authentication scheme, and we have shown that Lee-Lie's authentication scheme is still insecure against the various attacks. Also, we proposed the improved scheme to overcome these security problems of Lee-Lie's authentication scheme, even if the secret information stored in the smart card is revealed. As a result, we can see that the improved smart card based user authentication scheme for TMIS is secure against the insider attack, the password guessing attack, the user impersonation attack, the server masquerading attack, the session key generation attack and provides mutual authentication between the user and the telecare system.

• International Journal of Internet, Broadcasting and Communication
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• v.8 no.3
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• pp.50-57
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• 2016

In 2013, Li et al. proposed an improved smart card-based remote user password authentication scheme, and claimed that their scheme not only overcomes security weaknesses of the Chen et al.'s scheme but also is a more user friendly scheme compared with other schemes. In this paper, we analyze the security of Li et al.'s authentication scheme and we show that Li et al.'s authentication scheme is still insecure against the various attacks, such as the off-line password guessing attack, the forgery attack, and the session key generation attack etc. Also, we propose an improved scheme that can resist these security drawbacks of Li et al.'s authentication, even if the secret information stored in the smart card is revealed. As a result of security analysis, the improved scheme is relatively more secure against several attacks than other related schemes in terms of the security.

• The Journal of Society for e-Business Studies
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• v.9 no.1
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• pp.303-320
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• 2004

Smart card is a useful tool used in electronic payment systems and it is very important to test whether a smart card operates correctly. In this paper, we analyze previous researches on testing smart cards, such as ISO/IEC and KS standard documents, and Guideline of Card Quality Test. We also propose the functional test results done on the Highpassplus card of Korea Highway Corporation. By testing the Hipgpassplus card we can get card systems with reliable functionality and security. Furthermore, this can help developing more reliable security systems. The test results of the Highpassplus card proposed in this paper are the first research on testing smart cards in services in Korea and we expect that the test methods of smart card will be advanced based on our results.

• Journal of the Korea Society of Computer and Information
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• v.12 no.6
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• pp.201-206
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• 2007

Development of Information and Communication technology coming to activity of internet banking and electronic business, and smart card of medium is generalized prevailing for user authentication of electronic signature certificate management center with cyber cash, traffic card, exit and entrance card. In field that using public network, security of smart cart and privacy of card possessor's is very important. Point of smart card security is use safety for smart card by user authentication. Anonymous establishment for privacy protection and denial of service attack for availability is need to provision. In this paper, after analyze for Hwang-Li, Sun's, L-H-Y scheme, password identify element is a change of safety using one time password hash function. We proposed an efficient new smart card authentication protocol against anonymity and denial of service.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.4
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• pp.855-863
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• 2015

In this paper, we present a novel method to verify the financial site and prevent sensitive information disclosure with financial security card and smart phone. This method allows homepage access when user accesses to the valid site with right security card and smart phone. Furthermore, traditional OTP method cannot be secure against to Man in the middle attack, but out method presents the countermeasure of this. User can readily recognize the phishing and pharming sites and even avoid Man in the middle attack by malicious users.

• Journal of the Korea Society of Computer and Information
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• v.13 no.6
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• pp.195-201
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• 2008

We proposed that is suitable network environment and wire/wireless communication network, easy of implementation, security level preservation, scalable & reconfigurable to TCP/IP protocol architecture to implement suitable smart card MS-Serpent cryptographic algorithm for smart card by hardware base chip level that software base is not implement. Implemented MT-Serpent cryptosystem have 4,032 in gate counter and 406.2Mbps@2.44MHz in throughput. Implemented MS-Serpent cryptographic algorithm strengthens security vulnerability of TCP/IP protocol to do to rescue characteristic of smart card and though several kind of services are available and keep security about many user in wire/wireless environment, there is important purpose.

• Journal of the Korea Society of Computer and Information
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• v.22 no.4
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• pp.83-90
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• 2017

In the past, when the credit card was delivered to the customer, the postal agreement and receipt were signed by customer. The repossessed documents were sent back to the card company through the reorganization process. The card company checks the error by scanning and keeps it in the document storage room. This process is inefficient in cost and personnel due to delivery time, document print out, document sorting, image scanning, inspection work, and storage. Also, the risk of personal data spill is very high in the process of providing personal information. The proposed system is a service that receives a postal agreement and a receipt to a recipient when signing a credit card, signing the mobile image instead of paper, and automatically sending it to the card company server. We have designed a system that can protect the cost of paper documents, complicated work procedures, delivery times and personal information. In this study, we developed 'u-paperless' and secure credit card delivery system applying electronic document and security system.

• 전자공학회논문지 IE
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• v.43 no.1
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• pp.46-51
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• 2006

Recently, smart card system which is known as easy to portable and also safe from physical, electrical, and software attack is observed to manage information that becomes the target of security in safety. And java card graft upon java technology to smart card platform is having very good advantage with object-oriented techniques and also, java card have the open type OS that can show the same action in different hardware characteristic which allows various application programs. In this paper, we introduced independent execution characteristic of java platform because being set to each smart card was uncomfortable till now and we designed access control member card that allows several administrators in different access privilege by single card using java card. Several administrators can approach to various information of file type that is included on issued card to user by using different PIN. In the proposed method, confirmation of personal information, administration contents update, demand by contents, is possible by single card. At this moment, wish to do safer user certification that improve security limitation which is from PIN, used for user certification, and signature data. In the proposed method, as design and implementation of utilization technology of java card, biometrics, user certification which uses multi PIN, provide that more safety and conveniently.