Content Protection for SD Memory Card

摘要

The secure digital (SD) memory card, which has already become one of the most popular media. has a considered and well-defined mechanism for content protection. The most important concepts of the content protection mechanism are (1) binding of content to the medium, (2) revocation, and (3) moving of content. These three concepts, which were realized in integrated form for the first time in the SD memory card, have become fundamental concepts of content protection for a new generation of media. The SD memory card is very useful for a wide range of applications because of its advanced mechanism for content protection, its dimensions that make it easy to use, and its wide bandwidth for data transfer. The SD memory card will continue to be a leading medium in the expanding market for memory media.