Researchers at Linköping University have developed a novel random number generator for encryption, based on quantum phenomena, that promises safer, more cost-effective, and environmentally friendly digital data protection. The new technology could revolutionize quantum communication and other applications.
When encrypting data, random number generators are essential for providing secure keys to encrypt and decrypt information. Hardware-based random number generators, especially those relying on quantum phenomena, are considered highly secure because they produce genuinely random numbers.
The Linköping researchers’ Quantum Random Number Generator (QRNG) utilizes light-emitting diodes made from the perovskite material, which exhibits unique properties that make it suitable for this purpose.
Perovskite light emitting diodes (PeLEDs) can potentially reduce costs and environmental impact compared to traditional quantum generators that often use more expensive technologies like lasers.
Additionally, PeLEDs consume less energy. The researchers aim to further develop the material, making it lead-free and extending its lifespan, which currently stands at 22 days.
Guilherme B Xavier, a researcher at Linköping University, highlights the importance of not only generating random numbers but also ensuring their privacy. QRNGs offer the advantage of certifying that a substantial portion of the generated bits remains private and secure, making eavesdropping nearly impossible due to the laws of quantum physics. Xavier believes that this new QRNG technology could find applications in cybersecurity within the next five years.
It could also be advantageous to manufacture electronic components for sensitive data in Sweden to maintain security and prevent potential monitoring from foreign sources.