The race to break RSA encryption with quantum computing has taken a significant step forward. New research indicates that the required quantum power has been reduced by a factor of ten. This brings closer a scenario where widely used security algorithms could become vulnerable in a shorter timeframe than anticipated, changing the cybersecurity landscape.
The Role of qLDPC Codes in Reducing Requirements 🔐
The key to this reduction lies in the use of an error correction scheme called qLDPC code. This method allows for greater connectivity and information density between logical qubits, optimizing their use. According to calculations, with this architecture, a quantum computer with approximately 98,000 superconducting qubits could decrypt an RSA-2048 key in a month. Several companies have plans to reach hundreds of thousands of qubits this decade.
Your password 123456 can breathe easy... for now 😅
Although the figures sound more achievable, building and maintaining a stable 100,000-qubit system with advanced error correction is not like updating Windows. The engineering, cooling, and control challenges are formidable. So, for now, the router password will remain a bigger headache for the average user than a coordinated quantum attack. That said, it's a good time to start reading about post-quantum cryptography.