Software testing is an investigation conducted to provide stakeholders with information about the quality of the product or service under test. Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation.


Trivial File Transfer Protocol (TFTP) is a simple, lockstep, File Transfer Protocol which allows a client to get a file from or put a file onto a remote host. One of its primary uses is in the early stages of nodes booting from a local area network.

Trapdoor function

A one-way function f : X → Y is a trapdoor function if:
Exists some extra information (i.e., the trapdoor) with which f can be inverted efficiently
(i.e., f−1(y) can be computed efficiently for y ∈R Y)