If you're confused, don't worry; you're in good company; even security "experts" don't understand the comic: Bruce Schneier thinks that dictionary attacks make this method "obsolete", despite the comicassumingperfect knowledge of the user's dictionary from the get-go. He advocates his own...
If quantum computers could indeed factor large numbers quickly, today's online security could be rendered obsolete at a stroke. But what goes around comes around, and some researchers believe quantum technology will lead to much stronger forms of encryption. (In 2017, Chinese researchers ...