Talk:Viaccess

why it is called viaccess

Algorithm

Is there a reason why there is no exact algorithms posted in the article? I have looked around on the internet without finding any clues how the system(s) accually work. Are they secret? If so that should be mentioned. —Preceding unsigned comment added by Jacco77 (talk • contribs) 22:03, 27 May 2008 (UTC)

General cracking way

It must be possible to somehow get the signals stored at a harddrive. And then by comparing not decoded mpeg4 signals with decoded signal of the same MUX,channel an time/programme. And through f.i. a hexeditor try to notice the differencies. The algoritms can then be discovered. I gather that the clue is finding the ramdomize value fast. The number of different algoritms is limited if the cryptation works like common 32,64,128 or 256 bit cryptation. But forget a general card that works. But with pure computer help a software could be reversed-engeneered. Both the HD and SD standard will be DVB-T2 and MPEG4. After the computer the signal be watched at a television set. The computer screeen is needed just to analyze the signals. For userof such a programme no digital box or card will be necessary. Just a fast computer whith digital TV-in and out cards (the graphic card is of no help in this kind of solution) but the reversed-engeneered programme ought to be "naked" (meaning no operative system is needed - to gain maximum CPU speed). NOTHING digital can be concidered as full-proof safe. What is needed (for a the developement of such a programme which includes a simple OS) is "only" a really fast mathematical CPU, supreme knowlidge of low-level programming and mathematics - and patience. — Preceding unsigned comment added by 83.249.42.164 (talk) 16:16, 3 August 2012 (UTC)