One of the author’s purposes in The Code Book is to explain different types of codebreaking to his readers. Which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding Alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted. . . In a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with. . . Enormous speed.