Coinbase Builds Post-Quantum Custody Playbook for $250 Billion in Assets
- —Coinbase safeguards roughly $250 billion in institutional assets, including BlackRock's
- —MPC's split-key model may be incompatible with post-quantum signature schemes
- —Fallback plan encrypts keys with post-quantum cryptography inside programmable HSMs
- —Research on MPC-friendly hash-based signatures (PRAWNS) remains experimental
Why it matters: The quantum threat to Bitcoin is still theoretical, but the largest custodian preparing infrastructure now could set the standard for institutional-grade storage.
Source: Decrypt