a) A software development company wants to implement a digital rights management solution to protect its intellectual property.

a) A software development company wants to implement a digital rights management solution to protect its intellectual property. Which of the following should be the best option to enforce software digital rights?

A) Transport encryption

B) IPsec

C) Non-repudiation

D) Public key infrastructure

b) A system administrator is setting up a file transfer server. The goal is to encrypt the user authentication and the files the user is sending using only a user ID and a key pair. Which one of the following methods would best achieve this goal?