ECDSA

Coinbase has released a detailed framework for Bitcoin's post-quantum readiness, focusing on modular signature schemes and staged migrations. The plan aims to protect the network from cryptographically relevant quantum computers while maintaining compatibility with existing institutional custody tools.

The article explores the technical and governance-related dilemma of preparing Bitcoin for a quantum computing era. It compares the efficiency of using ZK STARKs for signature aggregation against the more controversial approach of increasing block size.

Citi warns that advances in quantum computing present a significant, accelerating risk to the cryptographic foundations of cryptocurrencies. The report suggests Bitcoin is more exposed than Ethereum, particularly due to public keys already visible on the blockchain, necessitating rapid adoption of post-quantum cryptography.