A team from Shanghai University has achieved a breakthrough in quantum computing that could threaten encryption methods in banking and cryptocurrency. Wang Chao’s team claims to have used a quantum computer from Canada’s D-Wave Systems to breach key algorithms like Present, Gift-64, and Rectangle, which are essential to the Substitution-Permutation Network (SPN) and Advanced Encryption Standards (AES) for securing cryptocurrency wallets and financial transactions.
Quantum Annealing and Encryption Breaches
The breakthrough utilized quantum annealing, a process that finds the lowest energy state by bypassing traditional computational limits. Wang’s team noted that while conventional algorithms explore possibilities sequentially, quantum annealing enables faster problem-solving by allowing particles to bypass barriers.
Wang’s team asserted, “This marks the first time a quantum computer has posed a substantial threat to several SPN-structured algorithms.”
The algorithms attacked in this study secure various cryptographic systems for cryptocurrency wallets and banking transactions. Breaching these algorithms with quantum computing could expose major vulnerabilities.
The Growing Quantum Threat to Cryptography
Quantum computing has long been viewed as both a potential game-changer and a serious threat to the cryptocurrency and banking sectors. AES-256, considered one of the most secure encryption standards, may become vulnerable as quantum computing progresses. A significant advancement could endanger password protection systems, putting crypto wallets and banking data at risk.
While the current attack did not reveal specific passcodes or fully breach encryption algorithms, Wang’s team warns that future quantum advancements could further exploit weaknesses in widely-used encryption systems.
Challenges and Future Risks
Despite the breakthrough, the researchers recognized that executing a large-scale quantum hack still faces challenges, including environmental factors, hardware limitations, and the complexity of creating a universal attack algorithm.
Nevertheless, this research highlights the increasing risk quantum computing poses to current cryptographic methods. The team stressed that further developments could exploit vulnerabilities in the SPN structure and other existing cryptographic systems.
The study was published in the CCF Chinese Journal of Computers on September 30.
Vitalik Buterin’s Proposal to Counter Quantum Threats
The potential dangers of quantum computing have caught the attention of crypto leaders. Ethereum co-founder Vitalik Buterin has suggested a solution to mitigate these risks. In a March post on X, he proposed that Ethereum could introduce a hard fork to defend against potential quantum attacks.
Buterin explained that “users would need to update their wallet software, but only a small number might lose funds.”
He emphasized that building infrastructure to protect blockchains from quantum attacks could begin soon, ensuring the safety of Ethereum and other cryptocurrencies.
Conclusion
As quantum computing advances, its potential to disrupt encryption in banking and cryptocurrency becomes increasingly evident. While limitations currently hinder large-scale quantum attacks, Wang Chao’s team’s work illustrates the rapid evolution of the field. As quantum capabilities grow, developing quantum-resistant algorithms and other security measures will be crucial to safeguarding these systems.
I am Toby Rothschild, Co-Founder of Spearmint and author at Coinography, and a strategist focused on advancing Web3 innovation, digital ecosystems, and the future of decentralized technology. I combine product thinking, creative leadership, and deep interest in emerging trends to help shape how individuals and organizations interact with the next generation of digital systems.
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