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Client Terminal for Supporting Banking Service, Authentication Server, Method and Application for User Terminal
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System, Server, Method and Recording Medium for Blocking Illegal Applications, and Communication Terminal Therefor
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Electronic signaturing verification server and electronic transaction method using the same
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Electronic signaturing method for online service
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System and method of work of authorship
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File Transfer System and Method Using Communication Network
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Apparatus and method for management of electronic filing document
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Service system and method for electronic trading stamp, service server for electronic trading stamp and electronic wallet therefor
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Virtual keyboard displaying apparatus and method for preventing exposure of input contents
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Service system and method for electronic name card, device and method for authentication of electronic name card
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