Question

Which of the following is widely used in cryptography to create a trapdoor function to facilitate exchange of keys?

Answer 1

Answer:

Trapdoor function

Explanation:

A trapdoor function is a function that is easy to compute in one direction, yet difficult to compute in the opposite direction (finding its inverse) without special information, called the "trapdoor". Trapdoor functions are widely used in cryptography.

Trapdoor functions are widely used in cryptography. In mathematical terms, if f is a trapdoor function there exists some secret information y, such that given f(x) and y it is easy to compute x.