Hi Tails guys. I opened a ticket for more details about a covert channel
issue that was discussed a while back an wanted to kick off the
conversation about this attack vector and help with a solution.
Summary: Attacker controlled CPU activity has a direct effect on
inter-packet timing, readily visible on the network. Think of JS running
in TBB or deliberate resource requests in case of an onion service.
In the ticket i outline the progress of a fix and a possible solution we
can deploy if it is tested to be effective:
https://redmine.tails.boum.org/code/issues/17156
