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Home > Cybersecurity > Silk can be used for secure key generation in the future

Silk can be used for secure key generation in the future

Scientists have found a way to use natural silk fibers for generating more secure authentication keys.


Rusen Gobel Rusen Gobel
January 31, 2022
2 min read
Silk can be used for secure key generation in the future

Generating authentication keys requires randomness. To ensure this randomness, sometimes companies come up with very creative ways. For example, Cloudflare uses lava lamps to create unpredictable combinations then converts them to authentication keys. Now, more ways to provide unpredictable randomness are being explored.

Nature’s gift of randomness

Researchers of « South Korea Gwangju Institute of Science and Technology » have managed to use natural silk fibers to create the randomness needed for authentication key generation. Natural silk comes from domesticated silkworms. The new system takes advantage of the light diffraction through micro holes in natural silk and uses it to generate a digital key for security solutions. As expected, the microholes and the light diffractions are completely unpredictable, making the system perfect for its purpose.

Professor Young Ming Song, senior author at the Gwangju Institute of Science and Technology said:

“When a  beam of light hits the disordered silk fibers of an optimal density,  it causes light diffraction. The nanostructures in individual microfibers enhance the contrast of light intensity with respect to the background. The diffracted light is then captured by an image sensor. Since the pattern of the microholes is    naturally-made, it is unique, giving rise to a unique pattern of light.”

The institute researchers have also mentioned that such a system can only be broken 5 x 10^41 years with brute force. This is such a long period that makes the system practically unbreakable, ensuring security.

See more Cybersecurity News


Rusen Gobel

Rusen Gobel

Rusen Gobel is a news editor at Cloud7 News. With more than 10 years of experience, Rusen worked as a hardware and software news editor for technology sites such as Shiftdelete, Teknokolis, Hardware Plus, BT Haber. In addition, Rusen publishes consumer product reviews on his YouTube channel. While consumer electronics has been his main focus for years, now Rusen is more interested in WordPress and software development. He had contributed different web application projects in his professional career. Rusen had graduated from Istanbul University, department of Computer Engineering. Rusen has a very high passion for learning and writing for every kind of technology. That's why he has been working as a tech editor for more than ten years on several different technology magazines and online news portals.

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