Earticle

초록

영어

Content abusing is increasingly common with the rapid development of the Internet, which damages the benefits of copyright owners, how to effectively prevent the abuse of digital contents is a big challenge. In this paper, we propose a secure DRM scheme supporting dynamic authorization, which first encrypts content with content encryption key (CEK), and then protects CEK based on distributed attribute-based encryption. At last encrypted CEK will be packaged and distributed with encrypted content, which eliminates independent key management and reduces the burden on the DRM server. In our scheme, user is labeled with a set of attributes and CEK is associated with access policy, only the user whose attributes satisfy access policy of content can recover CEK, which also achieves fine-grained access control. Moreover, to improve Muller et al.’s DRM scheme, our scheme achieves dynamic authorization by adding action control in the license, while the action control is related to user’s payment. Hence, when the user accesses the content, attributes comparison and license checking must be enforced, which lowers the trust required in DRM client. The analysis and comparison show our scheme is efficient and secure.

목차

Abstract
 1. Introduction
 2. Related Work
 3. Preliminaries
  3.1. CP-ABE Algorithms
  3.2. DABE Algorithms
 4. Framework of Proposed Scheme
 5. Details of the Proposed Framework
  5.1. Initialization Phase
  5.2. Content Encryption Phase
  5.3. License Acquisition Phase
  5.4. Content Decryption Phase
 6. Security and Performance Analysis
  6.1. Security Analysis
 7. Conclusion and Next Works
 Acknowledgements
 References

키워드

저자

• Fu Jingyi [ Information Security Center, Beijing University of Posts and Telecommunications, Beijing, China, National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing, China, Beijing National Security Science and Technology Co., Ltd, Beijing, China ]
• Ma Zhaofeng [ Information Security Center, Beijing University of Posts and Telecommunications, Beijing, China, National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing, China, Beijing National Security Science and Technology Co., Ltd, Beijing, China ]
• Huang Qinlong [ Information Security Center, Beijing University of Posts and Telecommunications, Beijing, China, National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing, China, Beijing National Security Science and Technology Co., Ltd, Beijing, China ]
• Yang Yixian [ Information Security Center, Beijing University of Posts and Telecommunications, Beijing, China, National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605