Chinese Quantum Computer Breaks Military-Grade Encryption, Ushers In New Era Of Data Vulnerability

Quantum computers have the potential to make modern supercomputers look like calculators. A quantum computer can perform calculations in seconds that would take the most advanced supercomputers nearly 50 years to process.

This immense power is at the heart of quantum computing, and China is rapidly advancing in this field. In a groundbreaking development, Chinese scientists have successfully used a quantum computer to crack military-grade encryption.

This achievement marks a significant moment in quantum computing's evolution and raises serious concerns about the future of data security.

Encryption methods, such as those used in banking and the military, have long been considered virtually unbreakable. However, with the advent of quantum computing, these once-secure systems could be broken in a matter of seconds.

What Is Quantum Computing?

Unlike classical computers that process information using bits (0s and 1s), quantum computers operate using quantum bits, or qubits, which leverage the principles of quantum mechanics.

These qubits can exist in multiple states simultaneously, a phenomenon known as superposition. In classical computing, a bit can either be a 0 or a 1.

In contrast, a qubit can represent multiple values simultaneously, drastically increasing processing power.

This unique property, combined with quantum entanglement, allows quantum computers to perform certain calculations exponentially faster than their classical counterparts.

What Quantum Computers Can Do

A decade ago, quantum computers were considered science fiction. However, fiction is now becoming reality. Modern supercomputers, like Sierra, can perform complex calculations at speeds of approximately 20 exaflops (1 exaflop = 1 billion billion calculations) per second.

Yet, even the fastest supercomputers will pale in comparison to quantum computers, which can process multiple possibilities simultaneously using quantum superposition.

The Breakthrough

In a paper published on September 30 in the Chinese Journal of Computers, Chinese researchers led by Wang Chao used a quantum computer built by Canada's D-Wave Systems to breach cryptographic algorithms.

They launched attacks on networks based on the Substitution-Permutation Network (SPN) structure, a foundation for the Advanced Encryption Standard (AES), widely used in military encryption.

Although this is an early-stage breakthrough, Wang's team demonstrated that quantum computers, with the right algorithms, could eventually break SPN-based encryption systems.

While the ability to break encryption at the click of a button is still years away, this experiment is a major step toward that reality.