trapdoor

trapdoor englanniksi

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 function to be easily computed.

5. A door in a level for regulating the ventilating current; a door.(R:Raymond Glossar)

6. To subvert (a cryptographic scheme) by means of a secret parameter that makes the function easy to compute.

7. To form a deformity.