Verimatrix introduced a completely new product line in its IPTV conditional access DRM system this week, VCAS version 2.0, adding entirely new ways of protecting content, including authenticating the broadband line a set top is attached to, watermarking, its own analog copy protection and a new concept called Quantum authentication. This last feature is patented and designed to identify a set top using its behavioral characteristics, so that exact clones of the set top will still not authenticate. Verimatrix is clearly aiming this at the weaknesses of existing satellite and cable CA systems, and plans an offensive outside its favored IPTV market. Quantum authentication works by taking criteria such as which channel was being viewed at a particular time and…