One of my favorite story tropes is where the main character is magically transported back in time, enabling them to use their “modern-day” scientific knowledge to appear powerful and gain advantage over the relatively primitive denizens of their new surroundings. The most famous, well-known example would be the Wizard in The Wizard of Oz, but this idea appears throughout literature and film as far back as 1889 in Mark Twain’s A Connecticut Yankee in King Arthur’s Court. I’m also known to repeatedly quote Arthur C. Clarke (who also used this trope in his seminal work Childhood’s End), “Any sufficiently advanced technology is indistinguishable from magic.”
It’s not magic but it might as well be
The information security industry is currently abuzz with quantum computing talk, particularly so because of President Biden signing into law the “Quantum Computing Cybersecurity Preparedness Act” at the close of 2022 which instructs government agencies to begin preparing their security to withstand quantum-computing powered encrypting breaking tools. For most of us, quantum computing sounds like something you would read about in a Clarke novel, and if you try to get into the details, it might as well be sorcery. The second line of the Wikipedia article literally states:
Classical physics cannot explain the operation of these quantum devices…
Quantum computing – Wikipedia
And there are probably very few of us who could even begin to explain how today’s computers work, let alone one powered by quantum physics. Knowledge is power, and we are increasingly at the mercy of devices that are essentially magical to us, and more so to the ones that control the knowledge and technology that powers them. This is particularly relevant with regards to the vast amount of valuable data locked in LastPass’s stolen but encrypted data vaults. If I could tie it to another famous movie trope, imagine bank robbers attempting to crack a massive, steel vault with a fancy laser drill while counting down the seconds until the lock is drilled through. Substitute quantum computing for the drill, and hackers for the bank robbers, and you have today’s unfolding scenario: an escalating technology arms race that requires federal laws to be passed and a select few wizards anointed to make sure we are kept safe. Wizards are traditionally feared and respected in fiction for good reason, and as in Baum’s famous tale, not necessarily always operating with everyone’s best interests in mind. Does it require you to understand quantum computing, to become a wizard, just to keep yourself safe? No, but keep your eyes on the wizards (and their handlers – kings, presidents, lawmakers, etc.) to make sure they wield their power ethically and safely.
Image generated by deepai.org based on the single word “Wizard”
Though the average consumer is still many years away from seeing or using one, quantum computers are moving steadily from theory to reality, and seems to be following the same accelerated curve most other technologies follow. First theorized in the 1960’s, the field of quantum computing was formally established in the early 1980’s, but actual systems using quantum computing only appeared in this decade. Lockheed Martin purchased in 2011 what appears to be the first physical implementation of a quantum computer: the D-Wave One. Google launched its own quantum computing initiative in 2013 in joint effort with NASA, and Edward Snowden revealed in 2014 alleged plans by the NSA to build a quantum computer expressly for cracking encrypted data.
[Skip this section unless you really want a brain twister!] Quantum mechanics on its own is an incredibly dense and complex field of science, and even though quantum computing concerns itself with a specific application of quantum mechanics, it is just as inscrutable as modern computers are now to most people. In a nutshell, where modern computers process data by boiling down everything to zeros and ones (bits), quantum computers process data using qubits, which can exist as either a zero or one, or any number of infinite states in between. While you are trying to wrap your head around that one, consider this next mind-blowing fact: where traditional CPU’s solve problems by switching between one or zero (albeit very, very quickly) and testing a condition (is it 0 or 1), a quantum CPU can simulaneously solve for one and zero at the same time. Because of this capability, a quantum CPU would be vast leap forward both in speed and complexity as compared to a “traditional” CPU.
What this means for you:
Scientists and security experts are justifiably concerned that quantum computers could easily crack the toughest encryption methods in use today. Encrpytion that would normally take today’s computers thousands of years to crack could, in theory, be broken within hours on a quantum computer. It’s not a long jump to suppose that the first organizations to implement quantum computers will be nation-states and large corporations, and then the race will be on to safeguard data with even stronger cryptographic algorithms. Echoing an arms race not unlike the nuclear one in decades past, modern technology is advancing at a pace that most humans will never stay ahead of, and we are relying on a small number of people in power who continually demonstrate an alarming lack of understanding of technology in general. Its important for all of us to step up our game and to focus on, at minimum, learning more about the technology we use everyday, and when we hit our limit, making sure we are protected and led by more knowledgeable people we can trust.
Image courtesy of Stuart Miles at FreeDigitalPhotos.net