The era of full-fledged quantum computers threatens to destroy internet security as we know it. Researchers are in a race against time to prepare new cryptographic techniques before the arrival of quantum computers, as cryptographers Tanja Lange (Eindhoven University of Technology, the Netherlands) and Daniel J. Bernstein (University of Illinois at Chicago) describe today in the journal Nature. In their publication, they analyze the options available for a post-quantum cryptography future.