At a Glance: BMIC vs Filecoin
| Attribute | BMIC | Filecoin (FIL) |
|---|---|---|
| Miner / Storage Provider Keys | ML-DSA (FIPS 204) | BLS12-381 — Shor-vulnerable; signs every sector seal |
| User Wallet Signing | ML-DSA lattice-based | secp256k1 ECDSA or BLS12-381 — both Shor-vulnerable |
| Key Encapsulation | ML-KEM (FIPS 203) | No PQC KEM deployed |
| Backup Vault | SLH-DSA (FIPS 205) | BLS/secp256k1 seed phrases only |
| Storage Deal Signing Frequency | N/A | Every sector PreCommit + ProveCommit = continuous BLS key exposure |
| WindowPoSt Signing | N/A | Daily BLS signature submissions per proving partition — highest routine BLS signing frequency in crypto |
| Key Longevity | PQC from genesis | Miner keys are long-lived by design (changing = slashing risk); 5+ yr continuous exposure |
| HNDL Window | PQC from genesis | 5+ years (since October 2020 mainnet) |
| NIST PQC Compliance | FIPS 203 + 204 + 205 | None announced |
Filecoin's Unique Quantum Risk: The Storage Deal Signing Amplifier
This is fundamentally different from the quantum risk profile of most blockchains. Most chains have HNDL exposure proportional to the number of user transactions. Filecoin's HNDL exposure is proportional to storage operations — which run 24/7 independent of market conditions or user activity. The chain accumulates BLS signing material continuously, every day, at a rate far exceeding transactional blockchains of similar age.
Filecoin's Cryptographic Stack: Full Exposure Map
| Key Type | Algorithm | Purpose | Quantum Risk |
|---|---|---|---|
| Worker Address | BLS12-381 | Daily storage operations: WindowPoSt, PreCommit, ProveCommit, deal proposals | Highest signing frequency — continuous 24/7 BLS exposure |
| Owner Address | secp256k1 or BLS12-381 | Miner control: withdraw rewards, change worker, change owner | High-value target — controls all miner funds |
| Control Addresses | secp256k1 (typically) | Optional supplemental signing addresses for specific operations | Additional HNDL surface if actively used |
| User Wallet (f1/f3) | secp256k1 (f1) or BLS12-381 (f3) | FIL transfers, storage client transactions | Standard ECC exposure — 5+ yr HNDL window |
| Block Signing | BLS12-381 | Consensus — Expected Consensus (EC) block production | Every miner block tip carries BLS signature |
| Payment Channels | secp256k1 | Micropayment lanes for retrieval market | Retrieval market payment channel keys accumulated since 2020 |
WindowPoSt: The 24/7 Quantum Exposure Machine
WindowPoSt (Window Proof of SpaceTime) is Filecoin's mechanism for proving that storage providers continue to store their committed sectors. Every 24 hours (one proving deadline), storage providers must submit a WindowPoSt proof for each of their proving partitions. This proof submission is a signed BLS12-381 message from the worker address.
No other major cryptocurrency generates BLS key exposure at this rate from a single actor. Ethereum validators submit BLS attestations frequently but rotate keys across the validator lifecycle. Filecoin miners accumulate BLS material under the same key for years by design.
Filecoin Storage Market: Deal Signing HNDL
Beyond WindowPoSt, every storage deal on the Filecoin network involves signed messages:
- Deal proposal signatures: Storage clients sign deal proposals with their wallet key; storage providers countersign acceptance
- Sector PreCommit: Worker address signs the PreCommit message committing to a new sector CID
- Sector ProveCommit: Worker address signs the ProveCommit message with the zkSNARK proof
- PublishStorageDeals: Deals are published to the chain with provider BLS signatures
BMIC Post-Quantum Architecture
BMIC's ML-DSA is a lattice-based scheme relying on the Module Learning With Errors (MLWE) hardness assumption. No known quantum algorithm — Shor's, Grover's, or otherwise — provides an exponential speedup against MLWE. BMIC wallet users have no BLS12-381 or secp256k1 signing exposure, and no accumulated HNDL archive.
BMIC Presale: Live Now
5+ Years of Filecoin BLS HNDL Already Archived
Every WindowPoSt, sector seal, and deal signature since October 2020 is an on-chain BLS12-381 HNDL record. BMIC is built post-quantum from genesis — no accumulated quantum debt.
Buy BMIC — Presale Live NowRelated Comparisons
Frequently Asked Questions
Is Filecoin (FIL) quantum safe?
No. Filecoin uses BLS12-381 for storage provider (miner) keys and consensus, and secp256k1 for user wallets and payment channels. Both rely on ECDLP — broken by Shor's algorithm. Filecoin has no published PQC migration roadmap as of October 2026.
Why does Filecoin's storage deal signing create unique quantum risk?
Filecoin miner keys sign every sector seal automatically — creating a continuously growing BLS12-381 HNDL archive under a single long-lived key. No other major cryptocurrency generates BLS key exposure at this rate from a single actor. Large providers may accumulate 91,000+ BLS signatures per key over 5 years of operation.
What is Filecoin's HNDL window?
Filecoin mainnet launched October 2020 — over 5 years of HNDL material as of October 2026. Unlike transactional chains, Filecoin's HNDL archive grows continuously regardless of market conditions because storage providers must submit proofs 24/7.
Why can't Filecoin miners just rotate their keys?
Filecoin miner keys are tied to the on-chain miner actor (f0 ID) and bonded collateral. Key rotation requires on-chain operations with delay periods. Changing keys does not invalidate already-archived HNDL material — it only prevents future exposure from the new key. The 5+ year archive under the old key remains exploitable.
How does BMIC compare to Filecoin on quantum safety?
BMIC uses ML-KEM (FIPS 203), ML-DSA (FIPS 204), and SLH-DSA (FIPS 205) — all NIST-standardised August 2024. Filecoin uses BLS12-381 and secp256k1 — both Shor-vulnerable, with uniquely dense BLS signing exposure from storage operations.
What is the BMIC presale price?
Visit bmic.ai for the live phase price. Price rises each phase. DYOR — not financial advice.