2010 | OriginalPaper | Buchkapitel
Constructing Key Assignment Schemes from Chain Partitions
verfasst von : Jason Crampton, Rosli Daud, Keith M. Martin
Erschienen in: Data and Applications Security and Privacy XXIV
Verlag: Springer Berlin Heidelberg
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In considering a problem in access control for scalable multimedia formats, we have developed new methods for constructing key assignment schemes. Our first contribution is to improve an existing cryptographic access control mechanism for scalable multimedia formats. We then show how our methods can be applied to a chain partition to develop alternative mechanisms for scalable multimedia formats and how these methods can themselves be extended to create a new type of key assignment scheme.