
| From: ted leslie <ted.leslie@gmail.com> | I wonder how DRM works on the hdmi in? that stuff is all at a chip level | now, not in software? HDMI DRM is done through HDCP standards. These have always been done in hardware. And they have been done in a way to make it hard to tap into a clear signal (at least that has been the intention). <https://en.wikipedia.org/wiki/High-bandwidth_Digital_Content_Protection> HDCP uses three systems:[5] 1) Authentication prevents non-licensed devices from receiving content. 2) Encryption of the data sent over DisplayPort, DVI, HDMI, GVIF, or UDI interfaces prevents eavesdropping of information and man-in-the-middle attacks. 3) Key revocation prevents devices that have been compromised and cloned from receiving data. Steps 1 and 3 probably use a processor on the HDMI chipset I'm 99.999% sure that the HDMI input on this box does not support HDCP. So you won't be able to record from your DVD player or your Rogers set-top-box or your Bell STB. You probably can record from your OTA boxes (but it is better to record from an ATSC source -- more compressed). You might be able to record gameplay on consoles. | [This isn't to say anyone should ever defeat drm for use to make a illegal | copy, I was just interested in | the technology. ] Get too interested and talk about it in a way that could be used and you will be a criminal. Part of the anti-circumvention measures in the Copyright Act revisions passed by the Harper Government a couple of years ago. --- Talk Mailing List talk@gtalug.org https://gtalug.org/mailman/listinfo/talk