Link Protection Technologies

With more are more premium digital media flowing from content providers directly to end user’s home PC’s and entertainment systems, a need has emerged to protect that content from theft during transit.  Digital media is most vulnerable to theft during electronic transport – easy to use software is freely available on the internet which gives the user the capability to copy and reconstruct files from network traffic.  However, premium digital media is not the only target for data theft.  Personal emails, documents, and other sensitive data could be stolen from your home network by simply viewing the network traffic.   On the forefront of the initiative to secure home network links are the technologies of DTCP-IP and WMDRM-ND.

DTCP - IP:

Digital Transmission Copy Protection for Internet Protocol. This technology is a relatively simple, but extremely powerful system to authenticate and share data between devices.  It uses uniquely signed device certificates for authentication, and AES-128 Data Encryption to protect transmitted data.  The technology is content agnostic, which means that it can be used as a “pipe” to deliver any data the user wishes, and be assured that the data was secure during transport.

WMDRM - ND:

Windows Media Digital Rights Management for Networked Devices.  This technology also implements Device Certificates, and AES-128 Data Encryption, but takes Link Protection one step further and implements Digital Rights Management.  This allows content providers to issue licenses along with delivered content which specify usage rights.  Unlike DTCP-IP however, this technology is currently only suited for digital media.

 

LNI and Link Protection

The DLNA™ Link Protection Test Tool (LPTT) is a complete test suite developed for the certification and development of DLNA™ Media Devices which implement Link Layer Protection.

If you have any questions regarding the Link Protection Test Tool or if you would like to recieve LPTT related updates please email: