3 ms·
Smashing the glass wouldn't make it less effective. The sensor itself has noise, and the camera output is fed into an HMAC with a key based on the current nanos
by AlotOfReading 5mo ago
Smashing the glass wouldn't make it less effective. The sensor itself has noise, and the camera output is fed into an HMAC with a key based on the current nanosecond before being combined with a traditional entropy source before it ever went anywhere. Even then, it was only used as a seed for the entropy pool on the actual server.
- dheera 5mo ago> and the camera output is fed into snip snip ?
- TZubiri 5mo agoIf your attack vector is breaking and entering, that's a pretty effective cybersecurity mechanism. But even if it happened, this is one of many additive entropy mechanism, removing or controlling only one source would not be sufficient for any attack.
- AlotOfReading 5mo agoYou still wouldn't be about to distinguish the output from noise unless you know the key or you've broken the cryptography, even if you know every bit of the message. Isn't it neat? And yes, as the other comment points out it's only one source among multiple.