According to Hong Kong media, an experiment conducted by China with diamonds took the deciphering of the quantum code one step closer to reality and could potentially break the digital encryption technology that provided security for banks, governments and the military.
According to the website of Hong Kong's South China Morning Post on May 7, quantum physicists in Hefei, Anhui Province, in their experiments used a novel quantum computing device embedded in diamonds to break the number 35 into factors of 5 and 7. This process known as factorization is the key to breaking the most popular digital algorithms in cryptography today.
The study was led by Du Jiangfeng, a quantum physicist at the China University of Science and Technology. The detailed findings were published in the March issue of the weekly magazine Physics Review in the United States. In this experiment, the researchers emitted laser and microwave beams to particles held inside the diamond's "nitrogen vacancy center," which is a tiny space inside the diamond that is well-suited for sub-atomic interactions. These particles come in two microseconds time to answer, the speed of lightning more than twice as fast.
Reported that speed is the key to deciphering the password. Thanks to a phenomenon known as quantum entanglement, quantum computers have the potential to greatly reduce the time required to decipher passwords.
The popular RSA algorithm, written by Ron Reeves, Adie Shamal and Leonard Adelman in the 1930s, encrypts information using the product of two large prime numbers. Only those who know the two primes can decode the message because it is almost impossible to decompose the product of these two primes when they are large enough. Determining the prime numbers used by RSA cryptosystems will require enormous digital computing power and thousands of years of time.
But theoretically, quantum computers can crack an RSA password in an instant. Some researchers said that China's first quantum computer may be in normal operation in the next few years, but there are still problems that need to be overcome.
This research work in Hefei has attracted the attention of cryptographers like Gao Juntao. Gao Juntao is an associate professor of cryptography at Xi'an University of Electronic Science and Technology of China. He writes encryption algorithms for the defense industry. He said: "Strictly speaking, the (experimental result) is a deciphering of the password, although it is still in its infancy, which is undoubtedly a breakthrough."
Reported that in 2012, Du Jiangfeng team has created a record by the factorization of the number 143, but the result is the use of nuclear magnetic resonance technology in the liquid medium to obtain, this medium is not easily copied to the practical application. Two years later, a multi-national team of researchers from Microsoft in Japan, the United Kingdom and the United States used the same technique to create a new record by factoring the number 56,153. However, the experiment in China conducted a factorization of the numbers in an environment that was completely based on solid materials, making the system more stable.
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