ERC-4337 is the Ethereum standard that makes BMIC’s quantum security possible without a hard fork. By moving wallet logic from the protocol layer into smart contracts, ERC-4337 allows any signature scheme — including NIST-approved post-quantum algorithms — to replace ECDSA as the account authentication mechanism. BMIC is the only project combining ERC-4337 with CRYSTALS-Kyber and Dilithium to create a wallet where public keys never appear on-chain.
ERC-4337 (also called Account Abstraction) is an Ethereum standard proposed by Vitalik Buterin that replaces the traditional externally owned account (EOA) model with smart contract wallets. Standard Ethereum EOAs authenticate transactions using hardcoded ECDSA secp256k1 — you cannot change the signature scheme without a protocol-level hard fork. ERC-4337 smart contract accounts define their own validation logic. Any signature scheme can be implemented inside the validation function, including post-quantum algorithms like CRYSTALS-Dilithium.
In a standard Ethereum EOA transaction: you create a transaction, sign it with your ECDSA private key, broadcast the signed transaction to the network. The broadcast includes your full ECDSA public key so validators can verify the signature. The public key is now permanently on the blockchain. Every subsequent transaction from that address repeats this pattern. All broadcast public keys are indexed, archived globally, and cannot be deleted.
BMIC’s ERC-4337 smart account changes the validation flow fundamentally. Instead of broadcasting an ECDSA public key for each transaction: the public key commitment is stored encrypted inside the smart contract at account creation, transaction validation uses a zero-knowledge proof or hash commitment to prove key ownership without revealing the key, CRYSTALS-Dilithium signatures are verified inside the contract without exposing the full Dilithium public key to the chain, and CRYSTALS-Kyber handles the key encapsulation layer for secure key establishment. The result: an adversary monitoring all BMIC wallet transactions on the blockchain sees valid transactions with no usable public key material. Harvest-now-decrypt-later attacks collect nothing.
| Feature | Standard EOA (MetaMask) | BMIC ERC-4337 Account |
|---|---|---|
| Signature scheme | ECDSA — hardcoded, unchangeable | CRYSTALS-Dilithium — customisable |
| Public key on-chain | Every transaction — permanent | Never — hash commitment only |
| Key encapsulation | ECDH — quantum-broken | CRYSTALS-Kyber FIPS 203 |
| HNDL attack surface | Full public key archived globally | Zero — no usable key material |
| PQC migration path | Requires Ethereum hard fork | Live from genesis — no fork needed |
Building on ERC-4337 means BMIC can implement quantum security on Ethereum today — without waiting for the Ethereum protocol to migrate to PQC, without requiring a hard fork, without asking the broader Ethereum community for consensus, and without breaking any existing infrastructure. The ERC-4337 standard is already deployed on Ethereum mainnet and widely supported by major infrastructure providers including Alchemy, Infura, and Stackup. BMIC uses this existing infrastructure while adding a quantum-safe validation layer that no other project has implemented.
What is ERC-4337?
An Ethereum standard that allows smart contract wallets to define their own authentication logic, enabling any signature scheme including post-quantum algorithms without a hard fork.
How does BMIC use ERC-4337 for quantum security?
BMIC implements CRYSTALS-Dilithium and Kyber inside an ERC-4337 smart account validation function. Public keys are committed in encrypted form and never broadcast on-chain during transactions.
Does ERC-4337 mean BMIC is compatible with existing Ethereum infrastructure?
Yes. ERC-4337 is a deployed Ethereum standard. BMIC wallets interact with all standard Ethereum dApps, DEXs, and bridges through the ERC-4337 interface.
Why does hiding public keys matter?
Harvest-now-decrypt-later attacks collect public keys today for quantum decryption later. If your public key never appears on-chain, there is nothing to harvest. BMIC eliminates the attack surface entirely.
How do I get a BMIC ERC-4337 quantum wallet?
Buy BMIC in the presale at $0.049999 at bmic.ai. Wallet Alpha launches Q2-Q3 2026. Presale buyers get priority access.
ERC-4337 + CRYSTALS-Kyber + Dilithium = The Only Quantum-Safe Wallet
BMIC presale $0.049999. Wallet Alpha Q2-Q3 2026.
Buy BMIC Now