Goal (sport) placed at each end of the playing field. Each structure usually consists of two vertical posts, called "goal posts", supporting a horizontal "crossbar". A "goal line" marked on the playing surface between the goal posts demarcates the goal area. Thus, the objective is to send the ball or puck between the goal posts, under or over the crossbar (depending on the sport), and across the goal line. Less commonly, as in basketball or netball, goals are ring-shaped. The structure is often accompanied with an auxiliary net, which stops or slows down the ball when a goal is scored. In some
3-subset meet-in-the-middle attack carry out the MITM attack, the 3 subsets are bruteforced individually, according to the procedure below: Each key-candidate found in the key-reducing phase, is now tested with another plain-/ciphertext pair. This is done simply by seeing if the encryption of the plaintext, P, yields the known ciphertext, C. Usually only a few other pairs are needed here, which makes the 3-subset MITM attack, have a very little data complexity. The following example is based on the attack done by Rechberger and Bogdanov on the KTANTAN cipher-family. The naming-conventions used in their paper is also used for this example. The attack