Recent advances in quantum computing means the day is coming when your private data could be revealed. Researchers at the University of Science and Technology in China in Hefei have developed a quantum computer that's 100 trillion times faster than the fastest supercomputers. One step users can take to make themselves a little safer from quantum codebreakers is to implement a new kind of encryption in their browsers. "The nature of quantum computing allows it to solve certain problems in practical time, that a c;assical computer would take much longer to solve," Chuck Easttom, an adjunct lecturer at Georgetown University, who studies cryptography and quantum computing, said in an email interview. "And it just so happens that these mathmatical problems that quantum computers are good at, also happen to be the mathmatical problems that form the basis for the securityof RSA, Diffie-Hellman, elliptical curve, and related algorithms. The day when standard security algorithms can be broken is closer than many people think, according to Paul Lipman, CEO of cybersecurity form Bullguard. "In practice, a quantum computer would require on the order of a million qubits to break RSA", said Lipman. The largest quantum computer is currently less than 100 qubits. "When quantum computers can break our encryption, then all of the collected data from the past can be read". There's also the potential for quantum computing to be used for mischief beyond just reading emails, due to how quickly it can compute data. Quantum computers will have the ability to compute in 3 minutes what would normally take a supercomputer 10,000 years to achieve", Jofee said. "The potential to radically shorten that time scale could, in the hands of a malicious actor, enable cyberattacks unlike anything previously seen." The National Institute of Standards (NIST) has been working on developing a quantum-resistant cryptography standatd since 2017, Easttom noted. One step users can take to make themselves a little safer from quantum codebreakers now is to implement the new "TLS 1.3 Encryption" in their browsers, Frantz said. "As a second option, which is now commercially available is to begin to use quantum random number generators and quantum key distribution in our data transport applications." A juicy target for hackers with future access to quantum computers would be cryptocurrency, which relies on cryptography to keep it safe and private. One company, RAIDATech, is working on technologies to transport and store data quantum-safe. "We have achieved quantum-safe storage by shreding the data so that only 1/25th of it is on any given cloud", claimed Sean Worthington, President of the cryptocurrency company Cloudcoin Consortium in an email interview. "You can't decrypt something that is in shreds."
