• Journal of the Korea Institute of Information Security & Cryptology
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• v.19 no.3
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• pp.61-72
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• 2009

To guarantee security between the tag and back-end server and implementation efficiency in low power tag, we propose two typed mutual authentication protocols in RFID system. One is static-ID authentication scheme which is well suitable in distributed server environments. The other is dynamic-ID scheme which is additively satisfied forward security. In proposed scheme, it does not need any random number generator in tag and requires only one(maximally three) hash operation(s) in tag or server to authenticate each other. Furthermore, we implement the proposed schemes in RFID smart card system and verify its normal operations.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.7
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• pp.1501-1509
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• 2011

Current identity management 1.0 model, which is service provider-centric and isolated, has several problems such as low usability, high cost structure, difficulty in privacy protection, and lack of trust infrastructure. Though various SSO-based identity management 2.0 models including Passport/Live ID, Liberty Alliance/SAML, CardSpace, and OpenID have been recently developed in order to overcome those problems, they are not widely accepted in real Internet environment so as to replace the existing identity management 1.0 model. This paper firstly analyzes the widely-known identity 2.0 models in a comparative way, and then presents a perspective on the development direction of identity management 3.0 model for future Internet.

• The Journal of the Korea Contents Association
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• v.5 no.3
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• pp.9-17
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• 2005

Recently, there are rapid development of information and communication technology and rapid growing of e-business users. We propose a method for security problem on the internet environment which changes from wire internet to wireless internet or wire/ wireless internet. Wireless e-business adopts credit card WPP protocol and AIP protocol proposed by ASPeCT. WAP, one of the protocol used by WPP has weakness of leaking out information from WG which connected wire and wireless communication. Certification chain based AIP protocol requires a lot of computation time and user IDs are known to others. We propose a Micro-Payment protocol based on credit card. Our protocol use the encryption techniques of the public key with ID to ensure the secret of transaction in the step of session key generation. IDs are generated using ECC based Weil pairing. We also use the certification with hidden electronic sign to transmit the payment result. The proposed protocol also solves the privacy protection and Non-repudiation problem.

• Journal of Korea Multimedia Society
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• v.13 no.2
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• pp.287-297
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• 2010

Authentication is needed to use safe devices in the home network environment. In this authentication, there are an ID base form and Certification base form. In case of an ID base form, it is difficult to apply to the multi domain environment and in case of an Certification base form, because the way that contains and stores the certificate demand on devices, additional setting of the user is needed for transfer of ownership and purchase of new devices, and more. Because both ways attend an individual authentication for devices, the ways exist overhead as the frequent authentication for a lot of devices in service aspects of user needs. To arrange these problems, in this paper, the authentication information of devices can be securely stored and managed in the java card and a processing time of the authentication could be improved better then the existing technique by authenticating a group of service.

• Journal of Digital Convergence
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• v.10 no.1
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• pp.177-184
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• 2012

It was emphasized that national electronic identification card system should be a prerequisite for the entire administrative services. Furthermore, the government so designed the plan on the assumption of national electronic identification card system that it could manage services for the public, elections, and most of decision-making processes. Nevertheless, national electronic identification card system has drifted for a fairly long time without being institutionalized. On the basis of the policy examples, this study tries to examine the process and discuss on what elements of conflict have been shown. Though it is all water under the bridge, it is thought that, when the new policy emerges in the future, recurrent failures can be reduced by a case study like this.

• Proceedings of the KIEE Conference
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• 2002.07b
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• pp.1211-1213
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• 2002

We have frequently felt it inconvenient to collect fare drawing the card in transportation system. Especially, for subway the fares of mass transportation at rush hours of the days, it's important to find a way to collect fares without unnecessarily delaying passengers. In this paper, we proposed a system for the gateless fare collection passing through the booth in only carrying the card. In this system that RF-ID system and Bluetooth are applied. We designed two wireless communication channels. One is the 125kHz communication channel by FSK and PSK for power supplying on the card and identification and the other is 2.4GHz channel for the collection.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.165-176
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• 2001

* Extension of EC(Electronic Commerce) * Standard of Message -EDI : UN/EDIFACT, ANSI X12, etc -XML : ebXML, CML, MathML, WIDL, etc * Various of Information -Business Transaction Data -Private Data : ID, Password, Personal Information -Charge Data : Accounts, Card, etc * Message Level Security(omitted)

• Journal of Digital Convergence
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• v.12 no.6
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• pp.317-323
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• 2014

The registration cards that are currently used to identify the people of Korea may cause secondary damage once stolen because they contain very specifically expressed fingerprint information. In order to solve this problem, in ID is required that can utilize the state-owned fingerprint DB, while while maintaining confidentiality of the identification information and satisfying the cost as well. At this point accordingly, a secure form of ID, which uses the encrypted QR code and fingerprint information, is proposed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.10a
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• pp.215-218
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• 2003

In this paper, we propose a protocol both allow a End-to-End security between user and service provider and independent in mobile Internet platform in AIP. In particular, our proposed protocol generates a session key using Weil pairing by ID-based public key system. We analysis a security and efficient of protocol when on-line certification authority participates in authentication process.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 1994.11a
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• pp.91-98
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• 1994

기존의 인증과정에서 이용되는 토큰으로는 자기카드가 많이 쓰이고 있으나 앞으로는 스마트카드가 이를 대체할 전망이다. 그러나 우리나라의 실정은 차세대카드로 불리는 스마트카드의 활용이 극히 부진한 실정이다. 스마트카드는 초기의 단순 메모리형 카드에서 점차 복잡한 형태의 카드로 발전하고 있으며 DES나 RSA 암호계를 내장하였을 뿐만 아니라 근래에는 현대 암호학의 고속계산 모듈을 담고 있는 카드까지 등장하고 있다. DRS를 이용한 인증은 빠른 속도와 구현의 용이성으로 인한 장점이 있는 반면, 카드 인증에 필요한 키를 단말기가 모두 관리해야 하는 문제가 있었다. 본 논문에서는 DE5 내장형 스마트카드에 ID 개념을 적용하여 키관리가 필요없는 사용자 인증 및 카드와 단말기간의 양방향 인증을 구현하였다. 사용된 스마트카드는 8-bit CPU를 내장하고 2kbytes의 EEPROM을 이용하며 프로그램의 다운로드수행은 고려하지 않았다.