Attribute Based DRM Scheme with Efficient Revocation in Cloud Computing

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Provided by: Academy Publisher
Topic: Cloud
Format: PDF
The existing Digital Rights Management (DRM) schemes in cloud computing introduce a heavy computation overhead on the content provider for key distribution. In this paper, the authors propose an attribute-based DRM scheme in cloud computing by combining the techniques of Ciphertext-Policy Attribute-Based Encryption (CP-ABE) and Proxy REencryption (PRE). They first divide the content encryption key into two parts, content master key and assistant key. Then they enforce access policies based on attributes to distribute the content master key securely.
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