Dr. Jacob Scheuer‘s invention uses existing computer technology and fiber optic cables to transmit “binary lock-and-key information in the form of light pulses.”
The “device ensures that a shared key code can be unlocked by the sender and receiver, and absolutely nobody else,” according to an article in Science Daily.
“When the RSA system for digital information security was introduced in the 1970s, the researchers who invented it predicted that their 200-bit key would take a billion years to crack,” Scheuer said. “It was cracked five years ago. But it’s still the most secure system for consumers to use today when shopping online or using a bank card. As computers become increasingly powerful, though, the idea of using the RSA system becomes more fragile.”
“Rather than developing the lock or the key, we’ve developed a system which acts as a type of key bearer,” he said.
The system sends a binary code via lasers instead of in numbers, which does not allow a hacker to intercept the code.
“We’ve already published the theoretical idea and now have developed a preliminary demonstration in my lab. Once both parties have the key they need, they could send information without any chance of detection. We were able to demonstrate that, if it’s done right, the system could be absolutely secure. Even with a quantum computer of the future, a hacker couldn’t decipher the key,” Scheuer said.
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