Chinese scientists have announced the world’s “first effective attack” on widely used encryption algorithms using a quantum computer. This breakthrough could pose a real threat to data security, which is crucial in sectors like banking and the military, according to South China Morning Post (SCMP).

A research team led by Wang Chao from Shanghai University used a quantum computer from the Canadian company D-Wave Systems to successfully attack the Present, Gift-64, and Rectangle algorithms. These algorithms belong to the SPN (Substitution-Permutation Network) class, which forms the basis for modern encryption standards like AES, commonly used in military systems and cryptocurrency wallets.

Quantum Annealing Technology

According to Wang’s article, the team used quantum annealing technology, which is similar to AI algorithms, to optimize the solution of complex problems.

“This is the first instance where a quantum computer has presented a real and significant threat to several full-scale SPN structures currently in use,” the team’s statement reads.

Limitations and Future Prospects

While the scientists did not obtain specific passwords, the results of their tests were more successful than previous attempts. However, they noted that factors such as hardware limitations and the difficulty in developing a unified attack algorithm currently prevent full-scale quantum computer hacking.

Nevertheless, further research may uncover new vulnerabilities in existing cryptographic systems, potentially leading to more robust quantum attack methods.

Context and Defense Against Quantum Threats

In March, Vitalik Buterin proposed ways to protect Ethereum from the threats posed by quantum computers. In August, experts also introduced new encryption standards designed to counter high-tech hacking methods.