Trapdoor
/ˈtræpdɔː/ noun, verb
noun, verb ·Uncommon ·Advanced level
Definitions
Noun
- 1 A hinged or sliding door set into a floor or ceiling.
- 2 Such a trap set into the floor of a stage to allow fast exits and entrances.
- 3 A secret method of obtaining access to a program or online system; a backdoor.
- 4 The special information that permits the inverse of a trapdoor function to be easily computed.
- 5 A door in a level for regulating the ventilating current; a weather door.
Verb
- 1 To subvert (a cryptographic scheme) by means of a secret parameter that makes the trapdoor function easy to compute. transitive
- 2 To form a trapdoor deformity. intransitive
Example
More examples"Hey, damned children! Beware the trap, the trapdoor, and the dog!"
Etymology
From trap + door.