trap door

Trap doors aretrapdoors. They are one of the potential threats to IT systems. It is a hidden functionality that attempts to penetrate or bypass the security functions of an IT system.

A trap door or backdoor is an implemented sequence of commands for an attack on an IT system. Trap doors are also used to test programs or deliberately built in by developers to gain unauthorized access to the system later. Such trap doors are activated by a specific string or sequence of events from a client or server.

Trap door functions are relatively easy to compute, however without the knowledge of the secret key it is not possible from the functional value (y) the appropriate argument (x) to compute.