Why Didn’t Google’s New Quantum Research Focus on Bitcoin?

Google’s recently published 57-page whitepaper, co-authored with experts from Ethereum and Stanford, explores why their quantum research prioritized Bitcoin over other potential targets like government codes or banking infrastructure. The paper highlights that a sufficiently advanced quantum computer could break Bitcoin’s cryptographic foundation within minutes, leading to a 41% probability of theft. However, Google deliberately chose Bitcoin as a testing ground due to its unique characteristics: a reliance on ECDLP-based elliptic-curve cryptography, a decentralized structure lacking a single authority for key rotation, and the permanence of failures on the blockchain. This approach allows for a ‘controlled disclosure’ of quantum vulnerability, facilitating industry-wide migration efforts. The research also acknowledges vulnerabilities in stablecoins and tokenization, projecting trillions of dollars in value at risk by 2030. Google’s decision reflects a broader strategy of demonstrating the consequences of a signature migration failure in a public, observable manner, positioning blockchains as the first public laboratory for post-quantum trust infrastructure. The paper’s publication accelerates the global race for post-quantum cryptography standards, with Google’s research serving as a key case study.

(Source：CryptoSlate)