ERC-4337 is the Ethereum standard for account abstraction — replacing simple externally owned accounts (EOAs) with programmable smart contract wallets. This is how BMIC implements quantum-resistant security on Ethereum without waiting for Ethereum itself to upgrade.
Why ERC-4337 matters for quantum security: Ethereum's native signature verification uses ECDSA, which is vulnerable to quantum attacks. With ERC-4337, BMIC can implement its own signature verification logic inside the smart contract wallet — using CRYSTALS-Kyber instead of ECDSA. The quantum security lives at the account level, not the protocol level.
Key features enabled by ERC-4337:
- Custom signature schemes (quantum-resistant)
- Gas sponsorship (pay gas in any token)
- Batched transactions
- Social recovery
- Multi-signature security
BMIC's implementation: Every BMIC wallet is an ERC-4337 smart account with quantum-safe signature verification baked into the contract logic. This means BMIC users are protected even though Ethereum's base layer still uses classical cryptography.