SD卡读写模块4

张衍波

The main objectives of the Security specifications of SD Memory Card are:
- To protect the copyrighted data recorded on the SD Memory Card from unauthorized use
(for reproduction and duplication).
- To give independent protection for different pieces of copyrighted data of different applications
(electronic music distribution EMD, electronic books, etc.).
This document and "Content Protection for Recordable Media Specification SD Memory Card Book", that is developed by 4C
Entity, LLC(IBM,Intel,MEI,Toshiba), contain the information on the functions required of the SD Memory Card
to achieve the above objectives.
This document especially contains the security specification that is depending on the implementation of the SD
Memory Card, more concretely,
(A) Data Element (SD-Card Specific)
Media Identifier
(B) Security Command set of SD Memory Card
(C) Random Number Generation on SD Memory Card
(D) File system (volume structure) of Protected Area on SD Memory Card
The following technologies are offered by Content Protection for Recordable Media Specification SD Memory Card: Book:
- Content and key encryption algorithm (C2 encryption),
- Revocation scheme of the unauthorized accessing device (Media Key Block),
- Authentication and Key Exchange mechanism (AKE) between SD Memory Card and the accessing devices.
- Data Structure on SD Memory Card
- File System (directory and file format) of Protected Area on SD Memory Card
- Content Encryption Format
etc.
1.2 References
4C Entity, LLC, [Content Protection for Recordable Media Specification SD Memory Card Book, available soon.]
SD Group, SD Memory Card Specifications Part1: Physical Layer Specifications
SD Group, SD Memory Card Specifications Part2: File System Specifications