White Papers for DLNA and LPTT

DTCP-IP For DLNA

DTCP-IP (Digital Transmission Content Protection – Internet Protocol) is a Link Protection Technology that has been specifically adapted for IP (Internet Protocol) transport. DTCP alone was originally designed for IEEE 1394 (FireWire) and USB transport links, but was later mapped to TCP/IP for use over home network Ethernet/WiFi links. This is the implementation that the DLNA has utilized.

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Link Protection in DLNA

Link Protection is a blanket term that refers to the methods employed to thwart attempts to “steal” data from a data transfer link. For DLNA, usually this means an Ethernet link that media is transferred over from a source to a rendering device. For an Unprotected Link, traffic is sent and received in “cleartext”, which means that anybody who can “see” the network traffic is free to copy and use the data on the link as they see fit.

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WMDRM-ND For DLNA

WMDRM-ND (Windows Media Digital Rights Management for Network Devices) is a Link Protection extension to WMDRM. It provides the elements necessary for Link Protection (device authentication and data protection) as well as a system for Digital Rights Management. It is important to note that Digital Rights Management is out of the DLNA scope, so the inclusion of any DRM components of the WMDRM-ND technology is purely out of necessity to achieve pure Link Protection.

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LPTT User's Guide

The entire user's guide for the Link Protection Test Tool.

LPTT User's Guide