Free Tool

Quantum Security Checker

Analyze your Bitcoin, Ethereum, BNB Chain, or Solana wallet for post-quantum migration urgency — using live public blockchain data.

Only public blockchain data is queried. Your address is never stored or shared.

This tool reads publicly available blockchain data to estimate post-quantum migration urgency. It does not access private keys, modify wallets, or store any input. Scores reflect public-key exposure and balance factors — not real-time quantum computing capability, which does not yet threaten elliptic-curve cryptography as of 2026.

How Each Blockchain Is Analyzed

Different blockchains have different cryptographic exposure models

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Bitcoin

Variable Risk

Bitcoin addresses store a hash of the public key. Your raw public key is only revealed when you spend from an address — it appears in the transaction input. If you have never sent from an address, your key remains hidden.

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Ethereum

Variable Risk

Ethereum addresses are derived from the public key via Keccak-256 hashing. Your public key is exposed when you sign your first outgoing transaction. We check transaction nonce: nonce > 0 means the key is on-chain.

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BNB Chain

Variable Risk

BNB Chain is EVM-compatible and uses identical cryptography to Ethereum. Address = Keccak-256(pubkey), and the public key is exposed on first outgoing transaction. Analysis uses the same nonce-based method.

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Solana

Always Exposed

Solana wallet addresses are the Ed25519 public key directly — no hash layer. Every Solana address has its public key permanently visible, regardless of transaction history. Urgency is assessed by balance size.

Why Quantum Risk Matters Now

The cryptographic foundations of today's blockchains were not designed to withstand quantum computing

$3T+
Total crypto market cap secured by ECDSA and Ed25519 — algorithms vulnerable to Shor's algorithm on a sufficiently capable quantum computer
2024
NIST published final post-quantum cryptography standards: ML-DSA (FIPS 204) and ML-KEM (FIPS 203) — the first quantum-resistant standards in history
$18B+
Projected global post-quantum cryptography market size, reflecting large-scale industry adoption of quantum-resistant security across all sectors
4M+
Estimated Bitcoin addresses with exposed public keys due to prior outgoing transactions — all would be vulnerable if a cryptographically-relevant quantum computer emerged

Frequently Asked Questions

No. As of 2026, no quantum computer has the capability to break 256-bit elliptic curve cryptography (secp256k1 or Ed25519). Breaking ECDSA-256 would require millions of stable, error-corrected physical qubits — current state-of-the-art machines have thousands of noisy qubits. However, NIST's finalization of post-quantum standards reflects the consensus that migration should begin now, before such machines exist.

Shor's algorithm (1994) is a quantum algorithm that can efficiently solve the discrete logarithm problem — the mathematical hard problem that underlies ECDSA and Ed25519. On a sufficiently powerful quantum computer, it could derive a private key from a known public key in polynomial time. This is why exposed public keys (addresses that have made outgoing transactions) carry higher migration urgency: the public key is already on-chain and available to anyone with a future quantum computer.

This tool measures post-quantum migration urgency, not real-time risk. No quantum computer today threatens your wallet. The score reflects how exposed your wallet would be if a cryptographically-relevant quantum computer existed: whether your public key is on-chain, how much value is at stake, and how quickly you should prioritize migration. Think of it as a proactive readiness score.

ML-DSA (Module-Lattice Digital Signature Algorithm, NIST FIPS 204) is based on the hardness of lattice problems, which no known quantum algorithm can solve efficiently — including Shor's. Unlike ECDSA, ML-DSA security does not rely on the discrete logarithm problem. The AntiQuantum Wallet uses ML-DSA-65 for transaction signing, providing 128-bit post-quantum security level even against an adversary with a large-scale quantum computer.

Yes, this tool is safe to use. It queries only publicly available blockchain data — information that is already visible to everyone on the internet. It does not access private keys, connect to your wallet, or require any signature. No address or result data is transmitted to Anti_Quantum servers. The entire analysis runs in your browser using public blockchain APIs (Blockstream, Cloudflare ETH, BNB RPC, Solana RPC).

Ready to Migrate?

The AntiQuantum Wallet implements ML-DSA-65 + Ed25519 hybrid signing — quantum-resistant by design from day one.

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