3 ms·
Haven’t seen a new Oona post in a long time and this, as usual, was worth the wait. I’d wager that the scrambling introduced in DisplayPort and later digital d
by cushychicken 4y ago
Haven’t seen a new Oona post in a long time and this, as usual, was worth the wait.
I’d wager that the scrambling introduced in DisplayPort and later digital display protocols is more to do with emissions compliance than it is to prevent eavesdropping. Having dealt with HDMI in a compliance labs time or two, anything to get the radiated emissions to meet FCC Part 15 Class B is a huge boon.
- amluto 4y agoI wonder if the scrambling can be defeated. If you know the scrambling pattern, presumably you could apply its inverse to the image being sent over the link.
- cushychicken 4y agoOh yeah, the scrambling is more to help deal with pixel errors than it is to provide any sort of cryptographic safety.
- amluto 4y agoNot just cryptographic. I wonder if a malicious image could exceed FCC limits or even cause the link to fail.