What are quantum-resistant algorithms—and why do we need them?
Luckily, symmetric-key encryption methods are not in danger because they work very differently and can be secured by simply increasing the size of the keys they use—that is, unless mathematicians can come up with a way for quantum computers to break those as well. But even increasing the key size can’t protect existing public-key encryption algorithms from quantum computers. New algorithms are needed.
What are the repercussions if quantum computers break encryption we currently use?
Yeah, it’s bad. If public-key encryption were suddenly broken without a replacement, digital security would be severely compromised. For example, websites use public-key encryption to maintain secure internet connections, so sending sensitive information through websites would no longer be safe. Cryptocurrencies also depend on public-key encryption to secure their underlying blockchain technology, so the data on their ledgers would no longer be trustworthy.
There is also concern that hackers and nation-states might be hoarding highly sensitive government or intelligence data—data they can’t currently decipher—in order to decrypt it later once quantum computers become available.
How is work on quantum-resistant algorithms progressing?
In the US, NIST has been looking for new algorithms that can withstand attacks from quantum computers. The agency started taking public submissions in 2016, and so far these have been narrowed down to four finalists and three backup algorithms. These new algorithms use techniques that can withstand attacks from quantum computers using Shor’s Algorithm.
Project lead Dustin Moody says NIST is on schedule to complete standardization of the four finalists in 2024, which involves creating guidelines to ensure that the new algorithms are used correctly and securely. Standardization of the remaining three algorithms is expected in 2028.
The work of vetting candidates for the new standard falls mostly to mathematicians and cryptographers from universities and research institutions. They submit proposals for post-quantum cryptographic schemes and look for ways to attack them, sharing their findings by publishing papers and building on each other’s different methods of attack.
The Download: toxic chemicals, and Russia’s cyberwar tactics
What are chemical pollutants doing to our bodies? It’s a timely question given that last week, people in Philadelphia cleared grocery shelves of bottled water after a toxic leak from a chemical plant spilled into a tributary of the Delaware River, a source of drinking water for 14 million people. And it was only last month that a train carrying a suite of other hazardous materials derailed in East Palestine, Ohio, unleashing an unknown quantity of toxic chemicals.
There’s no doubt that we are polluting the planet. In order to find out how these pollutants might be affecting our own bodies, we need to work out how we are exposed to them. Which chemicals are we inhaling, eating, and digesting? And how much? The field of exposomics, which seeks to study our exposure to pollutants, among other factors, could help to give us some much-needed answers. Read the full story.
This story is from The Checkup, Jessica’s weekly biotech newsletter. Sign up to receive it in your inbox every Thursday.
+ The toxic chemicals all around us. Meet Nicolette Bugher, a researcher working to expose the poisons lurking in our environment and discover what they mean for human health. Read the full story.
+ Building a better chemical factory—out of microbes. Professor Kristala Jones Prather is helping to turn microbes into efficient producers of desired chemicals. Read the full story.
+ Microplastics are messing with the microbiomes of seabirds. The next step is to work out what this might mean for their health—and ours. Read the full story.
The Download: sleeping in VR, and promising clean energy projects
People are gathering in virtual spaces to relax, and even sleep, with their headsets on. VR sleep rooms are becoming popular among people who suffer from insomnia or loneliness, offering cozy enclaves where strangers can safely find relaxation and company—most of the time.
Each VR sleep room is created to induce calm. Some imitate beaches and campsites with bonfires, while others re-create hotel rooms or cabins. Soundtracks vary from relaxing beats to nature sounds to absolute silence, while lighting can range from neon disco balls to pitch-black darkness.
The opportunity to sleep in groups can be particularly appealing to isolated or lonely people who want to feel less alone, and safe enough to fall asleep. The trouble is, what if the experience doesn’t make you feel that way? Read the full story.
Inside the conference where researchers are solving the clean-energy puzzle
There are plenty of tried-and-true solutions that can begin to address climate change right now: wind and solar power are being deployed at massive scales, electric vehicles are coming to the mainstream, and new technologies are helping companies make even fossil-fuel production less polluting.
But as we knock out the easy climate wins, we’ll also need to get creative to tackle harder-to-solve sectors and reach net-zero emissions.
Inside the conference where researchers are solving the clean-energy puzzle
The Advanced Research Projects Agency for Energy (ARPA-E) funds high-risk, high-reward energy research projects, and each year the agency hosts a summit where funding recipients and other researchers and companies in energy can gather to talk about what’s new in the field.
As I listened to presentations, met with researchers, and—especially—wandered around the showcase, I often had a vague feeling of whiplash. Standing at one booth trying to wrap my head around how we might measure carbon stored by plants, I would look over and see another group focused on making nuclear fusion a more practical way to power the world.
There are plenty of tried-and-true solutions that can begin to address climate change right now: wind and solar power are being deployed at massive scales, electric vehicles are coming to the mainstream, and new technologies are helping companies make even fossil-fuel production less polluting. But as we knock out the easy wins, we’ll also need to get creative to tackle harder-to-solve sectors and reach net-zero emissions. Here are a few intriguing projects from the ARPA-E showcase that caught my eye.
“I heard you have rocks here!” I exclaimed as I approached the Quaise Energy station.
Quaise’s booth featured a screen flashing through some fast facts and demonstration videos. And sure enough, laid out on the table were two slabs of rock. They looked a bit worse for wear, each sporting a hole about the size of a quarter in the middle, singed around the edges.
These rocks earned their scorch marks in service of a big goal: making geothermal power possible anywhere. Today, the high temperatures needed to generate electricity using heat from the Earth are only accessible close to the surface in certain places on the planet, like Iceland or the western US.
Geothermal power could in theory be deployed anywhere, if we could drill deep enough. Getting there won’t be easy, though, and could require drilling 20 kilometers (12 miles) beneath the surface. That’s deeper than any oil and gas drilling done today.
Rather than grinding through layers of granite with conventional drilling technology, Quaise plans to get through the more obstinate parts of the Earth’s crust by using high-powered millimeter waves to vaporize rock. (It’s sort of like lasers, but not quite.)