비 상호적 키 생성기법을 이용한 안전한 콘텐츠 분배시스템

Abstract

In a current license-based secure digital content distribution system, a package server has the responsibility to make contents secure for all entrusted contents on behalf of content producers and to securely provide a license server with content protection keys. Indeed, these work are big burden to the package server. In this thesis, we propose a non-interactive key generation scheme which enables content producers to generate their own contents protection keys and to encrypt their contents under the generated key for themselves. The main advantage of the proposed system has two parts; one is to reduce the workload of the package server by putting the work for making secure content on each content producers. The other is to remove the necessity of secure key transport between a key generator and the license server.