Trapdoor


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trapdoor

[′trap‚dȯr]
(building construction)
A hinged, sliding, or lifting door to cover an opening in a roof, ceiling, or floor.
An undocumented entry point into a computer program, which is generally inserted by a programmer to allow discreet access to the program.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Trapdoor

A door that is flush with the surface; located in a floor, roof, or ceiling, or in the stage of a theater.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

trapdoor

A door set into a floor, ceiling, or roof.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

back door

A secret way to take control of a computer. Also called "trap doors," back doors are built into software by the original programmer, who can gain access to the computer by entering a code locally or remotely. For example, a back door in an application would enable a person to activate either normal or hidden functions within the software. A back door in an operating system would provide access to all system functions in the computer. See encryption backdoor, Easter Egg and Back Orifice.
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References in periodicals archive ?
This decision essentially closes that trapdoor for good and allows defendants to defend their cases without fear of sanctions.
(Buffalo Bill) Cody christened his 1866 Trapdoor, "Lucretia Borgia," and with it killed 2,480 buffalo in a period of 18 months between 1866 and 1868 to feed the crews working on the Kansas-Pacific Railroad.
Trapdoor(GP, [pk.sub.CSP], MSK, L) [right arrow] [TD.sub.L]: It takes GP, [pk.sub.CSP], MSK, the keyword list L as inputs and outputs a trapdoor [TD.sub.L].
e) Test algorithm: This is a deterministic algorithm which takes as input the IDERMKS ciphertext I, trapdoor [T.sub.w] and system parameters.
Most loading manuals offer "grades" of loading data: trapdoor Springfields, 95 Marlins and 86 Winchesters, and the Ruger No.
"Through Barbara's detailed research, we were able to determine that the extensive lifespan of the trapdoor spider is due to their life-history traits, including how they live in uncleared, native bushland, their sedentary nature and low metabolisms," said Mason.
During the observation, they noted the secret to trapdoor spiders' longevity lies in their sedentary way of living.
Given the trapdoor, the malicious cloud server can perform the test procedure with the guessing keyword.
The fumes had killed the two men and undoubtedly the Sergeant was saved by sleeping near the bottom of the cellar steps, where he could receive the air that was coming down through the chinks in the trapdoor and which also had a piece ripped out of one of the boards.
[7] proposed oblivious generation of the keyword search trapdoor to maintain the privacy of the keyword against a curious trapdoor generator, and Cao et al.
Summary: It was the last thing they would see: a trapdoor opening in the floor of the Colosseum to unleash a snarling lion or bear, which sprang for the jugular as the crowds roared.