Where will you be on Q-Day?

February 17, 2023
February 17, 2023 Hal Jordan

Where will you be on Q-Day?

Quantum computing is a relatively new area of computing that is based on the principles of quantum mechanics. It is fundamentally different from classical computing, which is based on classical physics and the use of binary digits (bits) to represent information. In quantum computing, the basic unit of information is a quantum bit (qubit), which can exist in multiple states simultaneously.

The potential advantages of quantum computing are numerous. Quantum computers have the potential to perform certain types of calculations much faster than classical computers. This is because they are able to take advantage of certain quantum mechanical phenomena, such as superposition and entanglement, which allow them to process multiple computations at the same time.

Quantum computers are expected to be able to break many of the cryptographic protocols that are currently used to secure online transactions, including those used for secure communication, online banking, and e-commerce. At the same time, quantum cryptography is expected to provide more secure methods for protecting data transmission.

Quantum computing’s increased computational capabilities come with a heavy price for some “late adopters.” The moment when quantum computers achieve the ability to break public key (and other types of) encryption in a few hours has been given a name: Q-Day. When Q-Day arrives (estimated at five to twenty years from now), any data or systems still protected by public key encryption will become vulnerable. The results could be catastrophic.

Imagine that you are driving to school to pick up your children. You stop at a gas station to fill your tank and discover that your credit card won’t work. You go to your bank to withdraw some cash and find out that your checking account has been emptied. You pick up the kids, and when you’re headed home, you narrowly avoid a collision at a major intersection because all four traffic lights are set to green. Finally, your smart car loses all power and coasts to a stop, because an account with supervisory control has told it that you are an unauthorized driver.

The end result of losing control could be much worse than random annoyances. Electronic warfare is in progress at all times these days, perpetrated by nation-states who would love to do harm to your country. Imagine classified military information being stolen, your country’s financial transactions destroyed, and its critical infrastructure networks compromised. For example, there is a certain building in a certain city in Arizona where the workers have control of all of the circuit breakers that connect the state’s power plants to the power grid. A malevolent outside group could cause a total power blackout.

The good news is that companies can “migrate their network architecture to quantum-resistant cryptography and methods” right now. As the old saying goes, hope is not a strategy, so let’s keep an eye on this issue and remember that it’s potentially very serious.


Q-Day: The problem with legacy public key encryption

Quantum Computers: What Is Q-Day? And What’s the Solution?

Quantum Tech Needed To Secure Critical Data From Quantum Decryption


First Order of Business
Open Position
UFS Uniform Policy


18 February
1941Andrea Dromm is born.
1969 – The New York Times publishes NBC’s fall 1969 broadcast schedule. Among the current NBC series slated for cancellation is Star Trek.

19 February
1915Fred Freiberger is born.
1963David Anthony Marshall is born.

20 February1926Richard Matheson is born.
1936Marj Dusay is born.
1938Richard Beymer is born.
1951Edward Laurence Albert is born.
1967Justin Louis is born.
1988  – Rihanna is born.

21 February
1897Celia Lovsky is born.
1937Gary Lockwood is born.
1955Kelsey Grammer is born.
1961Martha Hackett is born.
1970Dayna Devon is born.

22 February
1928Paul Dooley is born.
1944Tucker Smallwood is born.
1966 – A New York Times article lists Star Trek as a part of NBC’s fall 1966 schedule, airing Friday nights from 10pm to 11pm.
1968Jeri Ryan is born.
2000Celia Rose Gooding is born.
2019Morgan Woodward dies.

23 February
1932Majel Barrett is born.

24 February
1923Fred Steiner is born.
1940James Sloyan is born.
1949Evelyn Guerrero is born.
1958Mark Moses is born.
1963John Goodson is born.
1983Tawny Newsome is born.
2015Maurice Hurley dies.
2022Sally Kellerman dies.


The United Federation Starfleet Blog is written by Fleet Captain Hal Jordan and is published every Friday. Join in the discussion! Engage with us on Discord at: discord.io/ufstarfleet


, , , , , , , , , , , , , , , ,

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.