Can Random Number Generators Thrive in a Quantum World?

(Sponsored) Random number generators (RNGs) are a vital part of our everyday lives. Whether it’s accessing our online bank accounts, encrypting peer-to-peer messages, or even playing our favorite video or casino games, RNGs are active in the background. We lean on random numbers way more than we realize.

However, quantum computing is rapidly evolving in its rearview mirror. In 2022, IBM
predicted that quantum computing would arrive in Brazil in 2025 and they were spot on.

How can traditional pseudo-random number generators (PRNGs) improve to remain safe and effective?

How does a PRNG work?

At the heart of a PRNG is a decentralized algorithm—a piece of code that operates
continuously, generating different sequences of numbers every second. Although these
sequences appear random on the surface, they are actually more predictable than you may
think.

A PRNG utilizes math-based formulas and an initial seed value to populate number
sequences that appear random.

This level of predictability is generally fine for most day-to- day applications. In cybersecurity, PRNGs are sufficient to ensure secure logins and ample encryption for data connections.

PRNGs are still used today to power online casinos, with platforms utilizing them to ensure
fair outcomes in virtual table games like blackjack, where randomness is vital for transparent gameplay.

With a growing number of variants to this classic table game, it’s more important than ever for casino operators to ensure new releases give players a fair chance of winning, in line with the game’s inherent house edge.

PRNGs are still a major factor in video gaming, too. Whether it’s generating enemy AI
patterns or new loot drops within in-game maps, game developers lean on PRNGs to
maintain unpredictability in video games.

PRNGs are also used by data modellers, like weather forecasters and financial analysts, to simulate potential outcomes and road test possibilities.

There is one slight issue with PRNGs and the clue is in the name. This type of RNG is
pseudo-random. Although they appear 100% random, they don’t actually replicate true
randomness.

The emergence of “true” RNGs

One way that developers and online operators can maintain the use of RNGs in an
increasingly quantum world is to shift towards “true” RNGs.

True random number generators (TRNGs) rely on unpredictable physical processes or properties to generate truly random number sequences.

It could be thermal noise, radioactive decay or quantum mechanics itself, which all express randomness in unique ways:

• Thermal noise creates random electrical fluctuations within circuits due to varying
  heat levels.
• With radioactive decay, there is an inherent unpredictability regarding the timing of particle emissions from radioactive isotopes, which are perfect for a TRNG.
• Photon scattering is another effective property, with the unpredictability of light particles scattering and interacting being a useful tool for a TRNG.
• Finally, atmospheric noise can have similarly random properties, with variations in radiowave frequencies – caused by natural atmospheric conditions – also effective.

The beauty of TRNG is that it can’t be reverse-engineered by cyber-criminals, thereby
making the technology much more secure.

The rise of quantum RNGs

Quantum Random Number Generators (QRNGs) represent the next frontier in creating truly
unpredictable numbers. Unlike PRNGs, which rely on mathematical formulas, QRNGs
exploit the fundamental randomness of quantum mechanics.

They typically use phenomena like quantum superposition and photon behavior, where outcomes are inherently unpredictable and not based on algorithms.

A common QRNG method involves measuring quantum fluctuations, such as photon
scattering or radioactive decay, which are inherently random and impossible to predict.

This makes QRNGs exceptionally secure, ideal for high-stakes industries like iGaming,
cryptography, and cybersecurity.

As quantum computing advances, traditional encryption methods may become vulnerable to attacks. Quantum computers have the potential to break current encryption standards, making the adoption of QRNGs a crucial stepforward for online transactions and digital security.

In the future, QRNGs could be integrated into online casinos, ensuring that digital roulette
spins, blackjack hands, and jackpot slots remain genuinely unpredictable and truly random.

However, there are still challenges when it comes to widespread implementation, including
the need for specialized hardware, high costs and standardization issues.

To stay ahead, tech and gaming companies are already exploring quantum-secure
cryptographic methods to prevent potential hacks.

As quantum technology matures, QRNGs may become the new gold standard in online security, finance and iGaming—ushering in a new era of digital trust and security.

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