3 ms·
This kind of attack is not useful for taking on a server, but, for example, it could be used to completely break HDCP. Get a couple of Blu-Ray players, use this
by Tuna-Fish 17y ago
This kind of attack is not useful for taking on a server, but, for example, it could be used to completely break HDCP. Get a couple of Blu-Ray players, use this to sniff out their keys and distribute those. Do it a couple of times and key revocation becomes infeasible because of the cost of replacing hardware.
- anamax 17y ago> Do it a couple of times and key revocation becomes infeasible because of the cost of replacing hardware. Who bears the cost of replacing hardware when a Blu-Ray key is revoked? That's a serious question. If the key used by my Blu-Ray player is revoked, who pays to fix things so I can continue to use it to watch new movies? Not to be cynical or anything, but I'll bet that I'm the one on the hook after the warrantee period, and maybe even earlier. If I'm correct, key revokation is a public relations nightmare waiting to happen.
- tptacek 17y agoMy sense is that revocation targets the software players more than the set-top boxes, but I note also that the set-top boxes are firmware-updatable. HDCP is also not where the battle's taking place; the rippers are targeting BD+, Blu-Ray's built-in DRM scheme. BD+ is considerably more sophisticated than a simple key you can rip out of memory.