Duffy personally believes that quantum computing will only threaten a very narrow but very important field in cryptography, and the public key encryption system established in the 1970s will become fragile. However, many technologies in cryptography, including hash coding used in blockchain, are not fragile in the face of quantum computing.

Because * * * co-founded the famous Duffy Herman key exchange protocol, which laid the foundation for the most commonly used public key encryption and digital signature on the modern Internet, Duffy and Herman won the Turing Award, which is known as the Nobel Prize in computer field in 20 15. The American cryptographer is very optimistic about blockchain in recent years and thinks it will be the underlying technology to change the Internet landscape.

Quantum computer has a great space for sustainable development.

Compared with traditional computers, its energy efficiency can be improved several times or even dozens of times. This means that quantum computers need much less energy and resources under the same computing task. This can not only reduce costs, but also reduce the impact on the environment.

At present, scientists are studying how to use new materials and technologies to improve the performance and stability of quantum computers. This will further reduce the energy consumption and cost of quantum computers and make them more sustainable.

With the increasing concern of sustainable development in the world, more and more companies and organizations begin to invest and research sustainable technologies and solutions. This also provides more opportunities and resources for the sustainable development of quantum computers.