Quantum Computing Drives Security Migration Across Crypto and Web3 Infrastructure

Public blockchains such as Bitcoin and Ethereum rely on elliptic-curve cryptography to protect private keys and transactions. A quantum computer operating at a practical scale could use Shor’s algorithm to break current signature mechanisms. Quantum computing is therefore seen as an opportunity for crypto and Web3 security to move beyond software hardening and migrate across chips, key custody systems and underlying network infrastructure.

The U.S. National Institute of Standards and Technology released its first three post-quantum cryptography standards — FIPS 203, 204 and 205 — on August 13, 2024, covering key encapsulation and digital signatures. The industry’s next priorities include assessing risks to wallets and nodes, adopting cryptographically agile architectures, and establishing quantum-resistant trust mechanisms for cross-chain governance and autonomous AI systems.