Crypto
Protect Recovery Code Fields in Crypto from Clipboard
In crypto, recovery code is one of the most targeted data types. Standard HTML inputs expose it to clipboard hijack attacks. SmartField encrypts it at the keystroke level.
The Risk
Recovery Code entered in a standard form is immediately accessible:
// Clipboard attack:
document.querySelector('input').value
// "Recovery Code data here" ← stolen
The Fix
<smart-field type="password" encrypt-key="/api/sf-key"
placeholder="recovery code"></smart-field>
Now the same attack returns AES-256-GCM encrypted data. The recovery code never exists as plaintext in the browser.
What the Attacker Gets
document.querySelector('smart-field').value
// "eyJ2IjoxLCJpdiI6IkNxT3..." ← 600+ chars of encrypted gibberish
Useless without your server's RSA-2048 private key.
Compliance
SmartField uses NIST-approved algorithms: AES-256-GCM (SP 800-38D) and RSA-2048 (SP 800-56B). Compatible with PCI-DSS, HIPAA, GDPR, SOX, and FISMA requirements.
Frequently Asked Questions
How does SmartField protect recovery code in crypto?+
SmartField encrypts recovery code at the keystroke level using AES-256-GCM. The data never exists as plaintext in the browser DOM. Clipboard Protection is achieved through 13 independent security layers including closed Shadow DOM and WeakMap isolation.
Can clipboard hijack attacks steal recovery code?+
Not with SmartField. The .value property returns encrypted payloads only. The real recovery code is stored in a WeakMap inside a closed Shadow DOM, invisible to any JavaScript including clipboard hijack attacks.
How do I implement this?+
Replace your standard input with smart-field. 2 lines of HTML. Install the server SDK (Node.js, Python, Java, Go, PHP, or Ruby) to decrypt on your backend.
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