CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Secure group communications using key graphs
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Broadcast Encryption's Bright Future
Computer
Kademlia: A Peer-to-Peer Information System Based on the XOR Metric
IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
Revocation and Tracing Schemes for Stateless Receivers
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
The LSD Broadcast Encryption Scheme
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
Efficient Trace and Revoke Schemes
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
Trust and Security in Peer-to-Peer System
DEXA '06 Proceedings of the 17th International Conference on Database and Expert Systems Applications
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Implementing DRM over peer-to-peer networks with broadcast encryption
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Collusion resistant broadcast encryption with short ciphertexts and private keys
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
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As P2P technique is broadly used for content distribution today, copyright infringement becomes a big problem. Thus we propose a DRM scheme over P2P network by establishing an access control mechanism for shared digital content. Compared with the traditional PKI, broadcast encryption is considered as more suitable for constructing P2P DRM system. But the existence of a central license server would not only cause single point of failure but also bring bottleneck problem. In this paper, we describe a basic implementation of broadcast encryption-based P2P DRM system first. Then we present a general scheme with focus on how to decentralize the license agency to reserve the flexibility of P2P network. At last we analyze its security, evaluate its efficiency and point out a tradeoff between the two system parameters.