Google Sets Quantum Computing Deadline: 2029 Cryptography Migration

Google has set a deadline for its migration to post-quantum cryptography by 2029, warning that current encryption standards are at risk of being compromised by quantum computing advances. According to Google, two primary threats exist: 'store-now-decrypt-later' attacks and the future ability of quantum computers to break digital signatures used in authentication.

The company laid out its timeline, citing progress on quantum computing hardware development, quantum error correction, and quantum factoring resource estimates. Google stated that quantum computers will pose a 'significant threat' to current cryptographic standards, specifically targeting encryption and digital signatures.

The announcement adds urgency to a dispute within the Bitcoin community about upgrading the network's cryptography and allowing voluntary migration to quantum-resistant signatures. Some advocates argue for an upgrade, while others claim any forced change would violate Bitcoin's foundational principle that private keys alone control coins.