COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

CRYPTOGRAPHY AND ENCRYPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Another term for trap-door function is ____
A
One-way function
B
Bijective function
C
Inverse function
D
One-to-one function
Explanation: 

Detailed explanation-1: -If each function in the collection above is a one-way permutation, then the collection is also called a trapdoor permutation.

Detailed explanation-2: -A trap-door one-way function is a one-way function for which the inverse direction is easy given a certain piece of information (the trap door), but difficult otherwise. Public-key cryptosystems are based on (presumed) trap-door one-way functions.

Detailed explanation-3: -There are three categories of trapdoor functions as standard trapdoor, lossy trapdoor, and homomorphic trapdoor functions.

There is 1 question to complete.