3 ms·
In that case just put on a few more layers. Shot noise is fairly random.
by Laforet 8y ago
In that case just put on a few more layers. Shot noise is fairly random.
- analog31 8y agoTrue. But if you share enough images from the same chip, eventually the fixed pattern noise can be computed to a decent enough accuracy to use it as a fingerprint. Now, you could measure the fixed pattern noise and subtract it from subsequent images. This is a widespread practice in scientific imaging. I'm not devious enough to think of how this could be defeated by someone who really wants to use your camera chip as a fingerprint, but it might be enough to defeat an amateur.
- angry_octet 8y agoDark-Signal Non Uniformity (DSNU): https://harvestimaging.com/blog/?p=814 https://harvestimaging.com/blog/?p=814 So likely to provide a few bits of entropy.