Journal of Digital Convergence (디지털융복합연구)

The Society of Digital Policy and Management (한국디지털정책학회)
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Trend and Improvement for Privacy Protection of Future Internet

미래 인터넷 기술의 Privacy 보호 기술 동향 및 개선

  • 김대엽 (수원대학교 정보보호학과)
  • Received : 2016.04.20
  • Accepted : 2016.06.20
  • Published : 2016.06.28
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Abstract

To solve various problems of the Internet as well as to enhance network performance, various future Internet architectures utilize cached data in network nodes or in proxy servers. Named-data networking (NDN), one of future Internet architectures, implements in-network data caching functionality, and then responds itself to request messages. However, it can cause users' privacy invasion that the publisher of data can not engage in the sharing/using process of the data anymore after the data was cached in-network. So NDN implements both encryption-based access control and group access control. But, since such access control schemes need to exchange additional messages in order to search for a proper access control list and keys, it causes inefficiency. This paper surveys the access control schemes of NDN, and then proposes an improved scheme.

인터넷의 여러 문제들을 해결하고, 데이터 전송 성능을 개선하기 위하여 제안된 다양한 미래 인터넷 아키텍처들은 네트워크 노드나 프락시 서버에 캐싱된 데이터를 활용하고 있다. 미래 인터넷 기술 중 하나인 데이터 이름 기반 네트워킹 (NDN)은 네트워크 노드에 데이터 캐싱 기능을 구현하고, 네트워크 노드가 데이터 요청 메시지에 응답함으로써 인터넷의 성능을 개선한다. 그러나 네트워크 노드에 데이터가 캐싱 된 이후에는 해당 데이터의 소유자가 데이터 배포 및 사용에 관여할 수 없기 때문에 사용자 프라이버시에 심각한 위협이 될 수 있다. 이를 해결하기 위해, NDN은 데이터 암호화 및 그룹 기반 키 관리 기술을 사용하여 데이터 접근 제어 기능을 제안하고 있다. 그러나 제안된 기술은 접근 통제 리스트와 복호화 키를 획득하기 위하여 추가적인 메시지 교환이 필요하기 때문에 성능 저하 요인이 될 수 있다. 본 논문은 NDN의 접근 통제 기능을 살펴보고, 성능 향상을 위한 개선된 방안을 제안한다.

Keywords

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