What is the basis for the Rivest-Shamir-Adelman (RSA) algorithm scheme?

A.
Permutations

B.
Work factor

C.
Factorability

D.
Reversivibility

Explanation:
This algorithm is based on the difficulty of factoring a number, N, which is the
product of two large prime numbers. -Ronald Krutz The CISSP PREP Guide (gold edition) pg 204