Frequently Asked Questions

Expert consensus suggests quantum computers capable of breaking current cryptography will emerge in the 2030s, though some estimates range from 2027-2029. A 2024 survey of 32 global quantum experts by the Global Risk Institute indicates this timeframe as most likely. However, the quantum threat timeline is uncertain - breakthroughs could happen sooner or later. QKey provides protection now so you're prepared regardless of when "Q-Day" arrives.

QKey uses CRYSTALS-Dilithium2, a lattice-based digital signature algorithm approved by NIST for post-quantum cryptography. Unlike RSA or ECC which rely on integer factorization or discrete logarithms (both vulnerable to quantum attacks), lattice-based cryptography relies on mathematical problems that remain hard even for quantum computers. QKey embeds these quantum signatures in Bitcoin transactions using compressed OP_RETURN data, providing a bridge between current Bitcoin infrastructure and quantum-safe security.

Yes! QKey is designed for maximum compatibility. It generates standard Bitcoin addresses that work with any Bitcoin wallet, exchange, or service. The quantum signatures are embedded as optional OP_RETURN data in transactions, which doesn't interfere with normal Bitcoin operations. You can receive Bitcoin from any source and send to any Bitcoin address. The quantum protection is an additional layer that enhances security without breaking existing functionality.

Without quantum protection, Bitcoin using traditional ECDSA signatures could become vulnerable once sufficiently powerful quantum computers exist. However, Bitcoin protected with QKey's quantum signatures would remain secure. The quantum signatures provide mathematical proof of ownership that quantum computers cannot forge or break. This means QKey-protected Bitcoin would maintain its value and security even in a post-quantum world.

Getting started with QKey is simple:

1. Generate quantum keys: Use our browser-based tool to create a quantum-safe key pair
2. Secure storage: Save your keys using our encrypted download or paper wallet options
3. Receive Bitcoin: Use your regular Bitcoin address (works with any wallet/exchange)
4. Quantum-protect transactions: When sending Bitcoin, use QKey to add quantum signatures

You don't need any special software or hardware - everything runs securely in your web browser.

QKey itself is free to use - the core wallet functionality is provided at no cost. You'll only pay standard Bitcoin network transaction fees when sending Bitcoin. The quantum signatures add minimal data (80 bytes) to transactions, which may slightly increase mining fees but the difference is negligible (typically less than $1 even during high-fee periods). There are no subscription fees, licensing costs, or hidden charges.

QKey prioritizes security through multiple layers:

• Client-side processing: All cryptographic operations happen in your browser - your keys never leave your device
• Open source: The code is publicly auditable for transparency
• No data collection: We don't store, log, or transmit any private information
• Vercel hosting: Uses ephemeral infrastructure with no persistent servers to attack
• Strong encryption: Uses NIST-approved algorithms and Web Crypto API

Always verify you're on the correct domain and consider using offline/air-gapped devices for maximum security.

Currently, QKey is a software-based solution that generates and manages quantum keys in your browser. While you can't directly integrate QKey with existing hardware wallets (they don't support post-quantum algorithms yet), you can:

• Use QKey alongside your hardware wallet for quantum protection
• Generate quantum keys with QKey and store them on paper wallets or encrypted files
• Keep existing Bitcoin on hardware wallets while transitioning new holdings to QKey protection

We're working on hardware wallet integration as manufacturers begin supporting post-quantum cryptography.

Quantum private keys work similarly to traditional Bitcoin private keys - if you lose them, you lose access to the quantum protection features. However:

• Your Bitcoin remains accessible: You can still spend Bitcoin using traditional signatures if you have the regular private keys
• Multiple backup options: QKey provides paper wallets, encrypted downloads, and multiple redundancy options
• Recovery impossible: Like all cryptographic keys, lost quantum keys cannot be recovered - always maintain secure backups
• Future protection: Only the quantum protection is lost; your Bitcoin can still be used with current methods until Q-Day

We strongly recommend using our redundant backup options and storing keys in multiple secure locations.