China has a quantum platform for computing. Now he wants to turn it into an “attack and defense” system.

For years we have talked about quantum computing as holding the promise of calculation: machines capable of tackling problems that conventional computers cannot solve, or cannot solve at a useful speed. But that same promise also opens a security front that is difficult to ignore. If sufficiently powerful quantum computers ever exist, part of the encryption that sustains our digital lives could be left in a delicate position. That is why the case of Origin Wukong is interesting: the story coming from China not only seeks to show the ability to calculate, it also wants to present it as a piece of cryptographic defense.

What is Origin Wukong. The name may lead one to imagine a specific machine, but the case is something more similar to a remotely available quantum computing platform. According to Global TimesOrigin Wukong is part of a Chinese series of superconducting quantum computers and is linked to the Origin Quantum environment and the quantum research carried out in Anhui, in eastern China. The data that gives it dimension is not only technical: the statement collected by the media speaks of more than 1 million quantum computing tasks completed, more than 49 million remote visits from 192 countries and regions.

The new defensive layer. The novelty is not only in the use that Origin Wukong has accumulated, but in how that infrastructure is now presented. The media claims that the platform has integrated a post-quantum cryptography framework and that this allows it to offer a double capacity, aimed at both computing and security. The text itself speaks of “defensive security measures”, an early “spear and shield” model and an “attack and defense” system.

What post-quantum cryptography means. We are not talking about an automatic solution or a technology that makes any system invulnerable. According to NISTpost-quantum cryptography is based on encryption methods supported by mathematical problems that are difficult to solve both for conventional computers and for future quantum computers. The nuance matters because the risk is not in current everyday equipment, but in a generation of quantum processors much more powerful than those available today. That is the logic that allows us to understand why Origin Wukong is now also presented in a defensive key.

Why does it matter anymore?. The problem does not only affect military documents or state secrets. NIST reminds us that encryption protects everything from emails and medical records to banking, e-commerce, personal photos and sensitive information of governments and companies. In addition, there is a particularly uncomfortable threat: that of capturing encrypted data today to try to decrypt it in the future, when more capable quantum machines exist. That is why the transition cannot be left to the last minute: integrating new algorithms into products and services can take between 10 and 20 years.

Technical caution. All this does not mean that quantum computing has already solved its major obstacles. NIST reminds that the field is still in an early phase and that there are still significant challenges before building quantum computers powerful enough to break current encryption. IBM also highlights one of the best-known barriers: qubits are delicate, require extreme cooling conditions and can lose stability due to decoherence.

Images | Anhui Quantum Computing Research Center

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