The G7 has called for an immediate shift to post-quantum cryptography to protect against future cyber threats, including in the crypto sector.
G7 Calls for Urgent Shift to Quantum-Safe Cryptography
The G7 has emphasized the urgent need for governments and businesses to prepare for potential cyber threats posed by quantum technology. A recent report from the G7's cybersecurity working group warns that the transition to post-quantum cryptography (PQC) could take years, leaving sensitive data at risk in the meantime.
According to the report, which includes representatives from Canada, France, Germany, Italy, Japan, the UK, and the US, quantum computing represents a significant threat across both public and private sectors, not just for critical infrastructure. It states, "While the timeline remains unclear, recent developments indicate a potential arrival of quantum computers capable of compromising prevalent public-key cryptography systems, posing risks to digital infrastructures."
The G7 is urging institutions to implement PQC to defend against both traditional and quantum cyber attacks. Without this critical transition, data captured and stored today could be decrypted in the future, potentially invalidating digital signatures and allowing impersonation, which could disrupt business operations and supply chains.
While the report does not specifically address cryptocurrencies, the same public-key cryptography that secures blockchain transactions is at risk. Currently, quantum computers cannot break Bitcoin's cryptography, but developers are exploring post-quantum solutions like BIP-360 to prepare the network for future threats. However, the decentralized governance of Bitcoin complicates this transition, requiring consensus among its community for any significant security changes.
Ethereum is also working on updates to its cryptographic systems, with proposals aimed at enhancing its deposit contract to support larger keys necessary for post-quantum security. Meanwhile, Solana appears to have a smoother path forward, utilizing EdDSA signatures and experimenting with post-quantum options on its test network.
The G7 report urges governments to support research and foster collaboration between public and private sectors to develop national PQC strategies. It also recommends that organizations identify critical systems and adopt quantum-safe products during regular updates to manage costs effectively. The report concludes with a call for immediate action from both public and private entities to enhance resilience and secure sensitive data against future threats.
