Quantum-safe protection for Web3 assets
Quantum-safe protection for Web3 assets
The world’s first
The world’s first
quantum-secure hot wallet
quantum-secure hot wallet
Defend your digital assets before Q-Day.
Created by Krown Technologies Inc. and Quantum eMotion Corp (TSXV:QNC)
Defend your digital assets before Q-Day.
Created by Krown Technologies Inc. and Quantum eMotion Corp (TSXV:QNC)
Monthly Quantum Security Plan
$9.95
Public Launch Day Countdown
11.01.25
Quantum-Secured Entropy Validation
100%

Monthly Quantum Security Plan
$9.95
$9.95
Public Launch Day Countdown
11.01.25
11.01.25
Quantum-Secured Entropy Validation
100%
Quantum-Secured Entropy Validation
100%



Quantum-grade encryption
Your private keys are protected by post-quantum cryptography — engineered to resist the most powerful quantum computers, today and tomorrow.
Protection from “harvest now, decrypt later” attacks
Even if your wallet data is intercepted today, it stays encrypted forever. Attackers can’t “store now, decrypt later” when the encryption itself is quantum-resistant.
Even if your wallet data is intercepted today, it stays encrypted forever. Attackers can’t “store now, decrypt later” when the encryption itself is quantum-resistant.



Security without compromise
Same familiar Web3 experience: send, receive, and trade with ease. But backed by the world’s most advanced encryption standard.
About Us
About Us
About Us
Why switch
Why switch
now?
now?




Q-Day is approaching. Quantum computers are advancing faster than most expect.
Existing cryptography (ECDSA, RSA) may soon be breakable.
Qastle ensures your wallet, your identity, and your history remain safe.
Q-Day is approaching. Quantum computers are advancing faster than most expect.
Existing cryptography (ECDSA, RSA) may soon be breakable.
Qastle ensures your wallet, your identity, and your history remain safe.
Features
Features
How to
How to
switch?
switch?
Switch in minutes. Import your existing wallet, verify your holdings, and re-encrypt with quantum-secure keys. Qastle automates the heavy lifting so you stay in control from start to finish.
Switch in minutes. Import your existing wallet, verify your holdings, and re-encrypt with quantum-secure keys. Qastle automates the heavy lifting so you stay in control from start to finish.




Powered by True Quantum Randomness
Built on Quantum eMotion’s QRNG2 technology — a validated quantum random number generator that delivers true entropy. Every key, signature, and transaction is shielded from both classical and quantum attacks.
Rewards for Krown Holders
Active members of the Krown ecosystem receive exclusive wallet access and discounts. Holding Krown Coin isn’t just an investment — it’s your gateway to the next era of quantum-secure finance.
Transparent Pricing, Premium Protection
Qastle keeps it simple — $9.95/month or $99/year. No hidden fees, no data selling, no gimmicks — just enterprise-grade quantum protection for less than the cost of a coffee a week.
Post-Quantum Security, Proven Today
Validated through Quantum eMotion’s QRNG2 engine, delivering true randomness and protection against tomorrow’s quantum threats
