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USB Digital Transmission Conte
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2009-04-11
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This paper describes the USB transport services and protocol formats that support Digital Transmission Content Protection (DTCP). Use of DTCP requires licensing by the Digital Transmission Licensing Administrator (DTLA).
1.2 Scope
USB CSM-2 describes the USB transport services, descriptors, and requests necessary to support DTCP protocols over USB. This document does not change or alter DTCP functionality.The Content Security Class (CSC) specification allows Content Security Methods (CSM) to define additional
requests as needed. CSM-2 defines additional USB CSC requests in order to support DTCP AKE protocols between USB Host and Device. In addition, CSM-2 implements the Content Security Notification Service and defines additional notifications that are needed to support DTCP protocols.
1.3 Related Documents
• Digital Transmission Content Protection Specification Volume 1 Revision 1.0, February 18, 1990
• Appendix A, USB DTCP Specification
• Universal Serial Bus Device Class Definition for Content Security Devices
• Universal Serial Bus Specification Version 1.1
• USB Common Class Specification Version 1.0
1.4 Terms and Abbreviations
AKE Authentication and Key Exchange
CCI Copy Control Information
CS Content Security, USB terminology for Content Protection
CSC Content Security Class, refers to USB Device Class Definition
for Content Security Devices specification
CSI Content Security Interface
CSM Content Security Method
DTCP Digital Transmission Content Protection
DTLA Digital Transmission Licensing Administrator
CSNS Content Security Notification Service
USB Universal Serial Bus
1.2 Scope
USB CSM-2 describes the USB transport services, descriptors, and requests necessary to support DTCP protocols over USB. This document does not change or alter DTCP functionality.The Content Security Class (CSC) specification allows Content Security Methods (CSM) to define additional
requests as needed. CSM-2 defines additional USB CSC requests in order to support DTCP AKE protocols between USB Host and Device. In addition, CSM-2 implements the Content Security Notification Service and defines additional notifications that are needed to support DTCP protocols.
1.3 Related Documents
• Digital Transmission Content Protection Specification Volume 1 Revision 1.0, February 18, 1990
• Appendix A, USB DTCP Specification
• Universal Serial Bus Device Class Definition for Content Security Devices
• Universal Serial Bus Specification Version 1.1
• USB Common Class Specification Version 1.0
1.4 Terms and Abbreviations
AKE Authentication and Key Exchange
CCI Copy Control Information
CS Content Security, USB terminology for Content Protection
CSC Content Security Class, refers to USB Device Class Definition
for Content Security Devices specification
CSI Content Security Interface
CSM Content Security Method
DTCP Digital Transmission Content Protection
DTLA Digital Transmission Licensing Administrator
CSNS Content Security Notification Service
USB Universal Serial Bus
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