Re: Copy protection proposed for digital displays

2000-02-23 Thread Ian Farquhar
I am curious: Are there better techniques for getting high-quality images out, rather than just videotaping a screen? If I am given a sealed box with a CRT, is there some technique I can do to get a better copy of what's being sent to the screen? It seems like it should be possible to

Re: Copy protection proposed for digital displays

2000-02-23 Thread John Kelsey
-BEGIN PGP SIGNED MESSAGE- At 05:59 PM 2/22/00 +1100, Ian Farquhar wrote: [much deleted, discussing a new Intel gadget for preventing pirating of video streams] I am also forced to note that this won't stop physical duplication, eg. by photographing the screen. Anyone familiar with

Re: Copy protection proposed for digital displays

2000-02-23 Thread David Honig
At 05:46 PM 2/23/00 +1100, Ian Farquhar wrote: Of course, there are also ways manufacturers could try to counter this. Constructing tamper-resistant cases for monitors is one way. Indeed, I'll suggest to everyone here that tamper resistant enclosures (everything from "mousetraps" to FIPS-140

Re: Copy protection proposed for digital displays

2000-02-23 Thread Rick Smith
At 05:43 PM 02/21/2000 -0800, Eugene Leitl wrote: HDCP uses a 56-bit key, with individual keys distributed to the various vendors. A violated key could be tracked down and revoked over a satellite broadcast network, for example. This design does not consider potential end user reactions.

Re: Copy protection proposed for digital displays

2000-02-23 Thread Ian Farquhar
5. Sony spends millions on recalls, PR damage control, etc. Look at it this way: "Sony, you'd better do a pretty good job of securing your keys, as if your systems are compromised you'll wear the financial consequences." There is already precident for Sony (and many others) signing up to a

Re: Copy protection proposed for digital displays

2000-02-23 Thread Steven M. Bellovin
In message [EMAIL PROTECTED], Ian Farquhar writes: 5. Sony spends millions on recalls, PR damage control, etc. Look at it this way: "Sony, you'd better do a pretty good job of securing your keys, as if your systems are compromised you'll wear the financial consequences." It's worth

Re: Copy protection proposed for digital displays

2000-02-23 Thread William Allen Simpson
Hmmm, I didn't see any: "Xing, you'd better do a pretty good job of securing your keys, as if your systems are compromised you'll wear the financial consequences." What I saw was keys compromised, sue the folks that tell anyone about it Ian Farquhar wrote: Look at it this way:

Re: ZKS hires Brands, licenses patents

2000-02-23 Thread Russell Nelson
lcs Mixmaster Remailer writes: Have their been other open source projects which used patented technology owned by the company releasing the source? How has the licensing been handled in those cases? Basically, "You get a license for this patented algorithm only if you use this source