Seo-Il Kang

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Development of IT has accelerated the establishment of electronic government, and convenience and efficiency have been enhanced by providing services of civil affairs and government and public offices to the people thru the internet. The electronic government service has been required to not only the service of civil affairs but also the electronic service(More)
A ubiquitous network environment is a system where the user can avail of the networkpsilas services anytime, anywhere. This service is referred to as authentication, authorization, accounting (AAA), and its aspects have been consistently studied. On the other hand, existing studies have been promoted with the authentication and efficiency of the mobile(More)
—An arbitrary mobile device configures Ad-hoc network to provide the transmission of a data and services using wireless communications. A mobile device requires authentication and encryption key management to securely communicate in the Ad-hoc network. This paper examines the trend of the authentication in the Ad-hoc network and the group key management and(More)
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