3 ms·

A screen with double the resolution and twice the framrate should be indistinguishable. Moreover if you pop the case on the camera and replace the sensor with

A screen with double the resolution and twice the framrate should be indistinguishable. Moreover if you pop the case on the camera and replace the sensor with something fed by display port (probably need an fpga to convert display port to lvds, spi,ic2 or whatever those sensors use, at speed) that should work too.

throw9871928 4y ago
This is still a lot harder than just using the deepfake application in the OP. But I’ll admit the arms race might not be over yet.
- galangalalgol 4y ago
  You can raise the bar a bit. No one checks to see if a $5 bill is fake. There is no real upper limit on what the payout for a deepfake could be. TPM isnt going to save facial recognition ID like the IRS from being obsoleted by deepfakes. But, for things that go to trial a TPM dashcam with tamper evident packaging (that can be inspected during trial) is probably good enough for small claims court. You could add GPS spoof detection, put as much as you can on the tpm chip (like the accelerometer), and sign all sorts of available data along with the video, but that will up the unit price a lot, and for the kind of fraudulent payouts you'd be trying to stop, you wouldn't make it enough harder to keep it from being cost effective for the fakers.
mgdlbp 4y ago
Not if the camera includes metadata like focus, shutter speed, accelerometer, GPS, etc. I don't really know, but I imagine the hardware security required wouldn't be too far from what's common now. Cameras are already unrepairable, so I suppose the arguments would have to be more from the privacy and who-controls-the-chipmakers perspectives.
- galangalalgol 4y ago
  GPS spoofers are available legally, you just replace the gps antenna with the spoofer, so no FCC violation. You'd have to break the law if you don't want to open the case to get to the antenna. I don't have any answers to the accelerometer or focus other than replacing those sensors too, and if you made the accelerometer on the same tpm enabled soc it would make moving shots like from a dash cam hard.
  - thereddaikon 4y ago
    Its not like TPMs are infallible. And even if they are thought secure today, older encryption becomes trivial to crack with time. But like you said, its about raising the bar. You can do a lot to mitigate the threat of deepfakes to a certain point which will eventually push them back into just the realm of those who really know what they are doing. That's not ideal, but well funded and talents groups have been able to falsify evidence to discredit people since the beginning of time. So the nature of the problem doesn't change, they just have another tool.
- einr 4y ago
  You could include LIDAR with the camera and use that data to verify that there is depth to the image.

throw9871928 4y ago

This is still a lot harder than just using the deepfake application in the OP. But I’ll admit the arms race might not be over yet.

galangalalgol 4y ago
You can raise the bar a bit. No one checks to see if a $5 bill is fake. There is no real upper limit on what the payout for a deepfake could be. TPM isnt going to save facial recognition ID like the IRS from being obsoleted by deepfakes. But, for things that go to trial a TPM dashcam with tamper evident packaging (that can be inspected during trial) is probably good enough for small claims court. You could add GPS spoof detection, put as much as you can on the tpm chip (like the accelerometer), and sign all sorts of available data along with the video, but that will up the unit price a lot, and for the kind of fraudulent payouts you'd be trying to stop, you wouldn't make it enough harder to keep it from being cost effective for the fakers.

mgdlbp 4y ago

Not if the camera includes metadata like focus, shutter speed, accelerometer, GPS, etc. I don't really know, but I imagine the hardware security required wouldn't be too far from what's common now. Cameras are already unrepairable, so I suppose the arguments would have to be more from the privacy and who-controls-the-chipmakers perspectives.

galangalalgol 4y ago
GPS spoofers are available legally, you just replace the gps antenna with the spoofer, so no FCC violation. You'd have to break the law if you don't want to open the case to get to the antenna. I don't have any answers to the accelerometer or focus other than replacing those sensors too, and if you made the accelerometer on the same tpm enabled soc it would make moving shots like from a dash cam hard.
- thereddaikon 4y ago
  Its not like TPMs are infallible. And even if they are thought secure today, older encryption becomes trivial to crack with time. But like you said, its about raising the bar. You can do a lot to mitigate the threat of deepfakes to a certain point which will eventually push them back into just the realm of those who really know what they are doing. That's not ideal, but well funded and talents groups have been able to falsify evidence to discredit people since the beginning of time. So the nature of the problem doesn't change, they just have another tool.
einr 4y ago
You could include LIDAR with the camera and use that data to verify that there is depth to the image.