[Cryptography] Regulations of Tempest protections of buildings

[iang]

On 02/04/2017 21:27, Aram Perez wrote:

> Everything was working fine until one weekend when it rained most of 
> Saturday and Sunday. When we went to work the following Monday, most 
> of the equipment in the Tempest room was damaged by the water that 
> dripped on the equipment in the room. Although the Tempest room didn't 
> radiate, it wasn't waterproof! Because it would take too much time to 
> get the special contractor to make the room waterproof, we had to make 
> tents out of PVC pipes and plastic tarps to cover all the equipment in 
> the room. That way, in the future, the water would drip off to the 
> sides and not into the equipment itself. I always wanted to take a 
> photo of the tents but I knew they wouldn't let me.

It worked!  Your electromagnetic emissions in the visible band were not 
able to escape the room...

iang