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» Hash-based Counter Scheme for Digital Rights Management
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SAC
2009
ACM
13 years 11 months ago
Secure web-based retrieval of documents with usage controls
Usage controls enable the provider of some information to limit how recipients may use it. Usage controls may be desirable in enterprise environments, e.g., for regulatory complia...
Peter Djalaliev, José Carlos Brustoloni
AFRICACRYPT
2010
Springer
13 years 8 months ago
Efficient Unidirectional Proxy Re-Encryption
Abstract. Proxy re-encryption (PRE) allows a semi-trusted proxy to convert a ciphertext originally intended for Alice into one encrypting the same plaintext for Bob. The proxy only...
Sherman S. M. Chow, Jian Weng, Yanjiang Yang, Robe...
DRM
2003
Springer
13 years 10 months ago
Breaking and repairing optimistic fair exchange from PODC 2003
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
Yevgeniy Dodis, Leonid Reyzin
ACMICEC
2008
ACM
195views ECommerce» more  ACMICEC 2008»
13 years 7 months ago
DRM domain authentication using electronic payment systems
This paper focuses on the problem of how to allow sharing of copyrighted content between a set of authorised devices and preventing unauthoried copying of content to other devices...
Imad M. Abbadi, Muntaha Alawneh