• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.07a
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• pp.182-182
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• 2004

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.07a
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• pp.431-431
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• 2004

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.1
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• pp.103-109
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• 2016

The information security industry is technology-intensive, high value-added industries. South Korea's response has excellent ICT skills and experience and skills in a variety of cyber attacks, has become a benchmark in the world. However, the small size of the domestic information security company, supporting infrastructure is lacking. Domestic information security industry is the primary condition to activate the export. For the export of high value-added enterprise information security products and services, it is necessary the establishment of the domestic IT information security infrastructure of the industrial promotion is based overseas. Come to analyze the domestic information security industry, capital of this small, market reclamation of overseas expansion, information, manpower shortage was a problem. This fact, combined losses caused by cost-free period AS. Therefore, the study on information security in the infrastructure industry overseas bases is necessary. How to select and analyze the causes of infrastructure in selected overseas offices. By utilizing the infrastructure of overseas bases, can raise the added value of the products and services of the Information Security company, we can enable the export of small and medium Information Security company from overseas offices.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.13 no.6
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• pp.3280-3298
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• 2019

Vehicular ad-hoc networks (VANETs) have become increasingly significant in intelligent transportation systems, they play a great role in improving traffic safety and efficiency. In the deployment of intelligent VANETs, intelligent vehicles can efficiently exchange important or urgent traffic information and make driving decisions. Meanwhile, secure data communication and vehicle's identity privacy have been highlighted. To cope with these security issues, in this paper, we construct an efficient anonymous authentication scheme with secure communication in intelligent VANETs. Combing the ElGamal encryption technique with a modified Schnorr signature technique, the proposed scheme provides secure anonymous authentication process for encrypted message in the vehicle-to-infrastructure communication model, and achieves identity privacy, forward security, and reply attack resistance simultaneously. Moreover, except the trusted authority (TA), any outside entity cannot trace the real identity of an intelligent vehicle. The proposed scheme is designed on an identity-based system, which can remove the costs of establishing public key infrastructure (PKI) and certificates management. Compared with existing authentication schemes, the proposed scheme is much more practical in intelligent VANETs.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.61-73
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• 2012

In this study, the information and communication technology ICT companies, 312 companies, in order to analyze the impact of the effect of satisfaction on the Exhibition and Convention on the impact of Information and Communication Technology Exhibition and Convention satisfaction effects analysis by information and communication technology Convention e-Portal affect the infrastructure system, exhibition and Convention, Convention Industry competitiveness, Convention, Convention Tour Program components to satisfy Convention effect empirically the effect on information and Communications Technology exhibition and Convention industry Convention and satisfaction effects on were analyzed. A result was able to find that information and communication technology goods and technology, tourism technology infrastructure technologies program, e-portal system, industrial competitiveness and technology Exhibition and Convention of Effects. Exhibition and Convention ensure the effect of the base material and environmental factors, these factors determine the product development laid the foundation. Product type defined, you can see that affecting economic ripple effects and satisfaction. Exhibition and Convention can achieve the effect of information and communication technologies to reduce your operating costs.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.120-123
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• 2009

The WiBro to start June 2006 is mobile internet service with 60km/h, 3Mbps. And current WiBro service is used in Seoul, the metropolitan area and the local major cities. This study suggests WiBro technology and analyzes wireless communication technology to vehicle-to-infrastructure communications for the unmanned vehicle control. We were driving vehicle with two laptop computer's WiBro unit for V2I communication environment. So each RAS(Radio Access Station) on center is tested coverage area, transmission rate, latency rate, lost rate and transmission rate to parking area environment.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.2
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• pp.892-905
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• 2018

In smart home environment, certificate based signature technology is being studied by communication with Internet of Things(IoT) device. However, block - chain technology has attracted much attention because of the problems such as single - point error and management overhead of the trust server. Among them, Keyless Signature Infrastructure(KSI) provides integrity by configuring user authentication and global timestamp of distributed server into block chain by using hash-based one-time key. In this paper, we provide confidentiality by applying group key and key management based on multi - solution chain. In addition, we propose a smart home environment that can reduce the storage space by using Extended Merkle Tree and secure and efficient KSI-based authentication and communication with enhanced security strength.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.417-419
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• 2016

Internet of things(IoT) services should be available to provide unattended operation in a remote area, long battery life, low-cost infrastructure, two-way communication platform. Urban transit in Busan is made up of the wire-based infrastructure except for voice infrastructure of transmit/receive and new data infrastructure is required for Internet of things(IoT) services. Urban transit environments in Busan were analyzed in order to apply LoRa Wireless Network(the standard communication way of IoT) and proposes a building after a Disaster Evacuation System.

• Journal of Advanced Navigation Technology
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• v.16 no.6
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• pp.1014-1023
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• 2012

Recently with improvement of SMART Grid, AMI network security has been affecting the environment for Electric information and communication. The system and communication protection consists of steps taken to protect the AMI components and the communication links between system components from cyber intrusions. The addition of two way communications between SUN and HAN introduces additional risk for unauthorized access to the AMI system. In this paper, we propose new AMI device authentication infrastructure, key establishment and security algorithm based on public key encryption to solve AMI network security problems.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.1
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• pp.142-147
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• 2006

As computers and networks become popular, distributing information on the Internet is common in our daily life. In the past, e-mail has been the primary choice of exchanging information, but instant messengers are gaining popularity abroad and domestically because of their nature of getting immediate reponses. However a instant messenger services have the exposure of data on internet but clients use them without recognizing their exposure. It's like phone tapping. The coding technology using Public Key Cryptosystem has developed the public key infrastructure to be able to do the services of Access-control, Authentication, Confidentiality, Integrity. and Non-repudiation with internet. It is a thesis that suggests the certification protocol in a instant messenger using PKI(Public Key Infrastructure) for secure communication.