Seonglae ChoIdentifying a creative side channel is a crucial skill for security.
Like the heat of a light bulb, the incidental information that occurs during system use footprint
Microsoft Interview Question
A brain teaser about 3 light bulbs in a room, each bulb is connected to one switch outside the room. Each switch is connected to only one bulb. If you are outside the room and can do anything to the switches but can only go in the room once to see the bulbs, how can you figure out which bulb is attached to which switch?
Covert Channel
Covert channel requires collusion (Typically the sender is Trojan which are trusted but outright malicious)
의도적으로 정보를 은밀하게 전송하기 위해 만들어진 경로 (side channel)을 이용한다